Hp Compaq Presario 3005Us Notebook Pc Modem And Networking Guide Lucent/Agere Command Set (Advanced Users Only)

Modem and Networking: Compaq Notebook Series c01150584

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AT Command Set
S-Registers
AT FAX Command Set
- Class 1 FAX Commands
- AT FAX Command Set Descriptions
V.25ter AT Command Set
V.80 AT Command Set
New V.250 Commands to Support V.92 AT Command Set

Lucent/Agere Command Set

(Advanced Users Only)

Compaq Notebook Series

Document Part Number: 277662-001

April 2002

This document describes the Lucent/Agere command set for

advanced users, including AT commands, S-Registers, AT FAX

commands, and other advanced modem commands.

277662-001.book!!Page!i!!Friday,!January!11,!2002!!5:15!PM

Compaq, the Compaq logo, Evo, and Presario are trademarks of Compaq

Information Technologies Group, L.P. in the U.S. and/or other countries.

Microsoft and Windows are trademarks of Microsoft Corporation in the U.S.

and/or other countries.

All other product names mentioned herein may be trademarks of their respective

companies.

Compaq shall not be liable for technical or editorial errors or omissions

contained herein. The information is provided “as is” without warranty of any

kind and is subject to change without notice. The warranties for Compaq

products are set forth in the express limited warranty statements accompanying

such products. Nothing herein should be construed as constituting an additional

warranty.

Lucent/Agere Command Set

(Advanced Users Only)

First Edition April 2002

Document Part Number: 277662-001

277662-001.book!!Page!ii!!Friday,!January!11,!2002!!5:15!PM

Lucent/Agere Command Set (Advanced Users Only) iii

Contents

1 AT Command Set

AT Data Command Set Summary . . . . . . . . . . . . . . . . . . 1–1

New AT Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4

Result Code Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–5

AT Command Descriptions . . . . . . . . . . . . . . . . . . . . . . 1–11

2 S-Registers

Setting S-Register Default Values . . . . . . . . . . . . . . . . . . 2–2

Modifying an S-Register . . . . . . . . . . . . . . . . . . . . . . . . . 2–2

Reading an S-Register . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3

S-Register Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . 2–5

3 AT FAX Command Set

Class 1 FAX Commands . . . . . . . . . . . . . . . . . . . . . . . . . 3–1

AT FAX Command Set Descriptions . . . . . . . . . . . . . . . 3–2

4 V.25ter AT Command Set

5 V.80 AT Command Set

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iv Lucent/Agere Command Set (Advanced Users Only)

Contents

A New V.250 Commands to Support V.92 AT

Command Set

+PMH Modem on Hold Enable. . . . . . . . . . . . . . . . . A–5

+PMHR Initiate Modem on Hold (MOH). . . . . . . . . A–7

+PIG PCM Upstream Ignore . . . . . . . . . . . . . . . . . . . A–8

+PQC V.92 Phase 1 and Phase 2 Control . . . . . . . . . A–9

+PMHF V.92 Modem Hook Flash . . . . . . . . . . . . . A–10

+DS44 V.44 Data Compression . . . . . . . . . . . . . . . A–10

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Lucent/Agere Command Set (Advanced Users Only) 1–1

AT Command Set

AT Data Command Set Summary

Command Description Command Description

+++ Escape to online

command mode

&S Data set ready

(DSR) option

AAnswer command &T Self-test

commands

A/ Repeat last

command

&V View active

configuration

BCommunication

standard setting

&W Store current

configuration

CCarrier control &Y Select stored

profile for hard

reset

DDial command &Zn=x Store telephone

number

EEcho command \A MNP Block Size

FOnline data

character echo

command

\B Send Break

HHook control \G Modem port flow

control

IRequest ID

information

\J Adjust bits/s rate

control

LMonitor speaker

volume

&S Data set ready

(DSR) option

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1–2 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

MMonitor

speaker mode

&T Self-test

commands

NModulation

handshake

\N Error control mode

selection

OReturn to online

data mode

\Q Local flow control

selection

PSelect pulse

dialing

\R Ring indicator off

after answer

QResult code

control

\T Inactivity timer

SSet or Query

S-Register values

\V Protocol

result code

TSelect tone dialing \X XON/XOFF pass

through

VDCE response

format

-C Data calling tone

WResult code option -V90 Enable/disable

V.90 settings

XResult code

selection and call

progress

monitoring

%B View numbers in

blacklist

YLong-space

disconnect

%C Data compression

control

ZReset and recall

stored profile

%E Automatic rate

change

&B V.32 auto retrain DR Compression

reporting

&C Data carrier detect

(DCD) control

DS V.42bis

AT Data Command Set Summary

Command Description Command Description

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–3

&D Data Terminal

Ready (DTR)

control

ER Error control

reporting

&F Local factory

settings

ES Buffered mode

&G V.22bis guard tone

control

IFC Flow control

&J Auxiliary relay

options

ILRR DTE rate reporting

&K Local flow control

selection

MR Modulation

reporting

&M Asynchronous

communications

mode

MS Modem carrier

&P Pulse dial

make-to-break

ration selection

AT Data Command Set Summary

Command Description Command Description

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1–4 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

New AT Commands

Command Description

+DS44+<direction>,

<compression_negotiation>

V.44 data compression

+EB=<break selection>,

<timed>,default length>

Break handling in error control

operation

+ESA=<trans Idle>,<frame

idle>,<framed un ov>,<hd

auto>,<crc type>,<nrzi

en>,<syn1>

Set up error control parameters

+ESR=<value> Selective repeat

+ETBM=<pending_TD>,

<pending_RD>,<timer>

Call termination buffer

management

+GCI+<T.35 country code> Country of installation

+GMI Manufacturer identification

+GMM Modem identification

+GMR Request revision information

+IPR+<DTE rate> Fixed DTE rate

+ITF+<off>,<on> Transmit flow control threshold

+PCW+<call_waiting> Call waiting enable

+PIG+<value> PCM upstream ignore

+PMH+<value> Modem on hold enable

+PMHF Modem on hold hook flash

+PMHR Initiate modem on hold

+PMHT+<value> Modem on hold timer

+PQC_<value> V.92 phase 1 and phase 2 control

+PSS+<value> Use short sequence

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–5

Result Code Summary

Result Code Numeric Description

OK 0 Command executed

CONNECT 1 Modem connected to line

RING 2 A ring signal has been

detected

NO CARRIER 3 Modem lost carrier signal, or

does not detect carrier

signal, or does not detect

answer tone

ERROR 4 Invalid command

CONNECT 1200 EC* 5 Connection at 1200 bits/s

NO DIALTONE 6 No dial tone detected

BUSY 7 Busy signal detected

NO ANSWER 8 Remote end never answered

CONNECT 2400 EC* 10 Connection at 2400 bits/s

CONNECT 4800 EC* 11 Connection at 4800 bits/s

CONNECT 9600 EC* 12 Connection at 9600 bits/s

CONNECT 14400 EC* 13 Connection at 14400 bits/s

CONNECT 19200 EC* 14 Connection at 19200 bits/s

CONNECT 7200 EC* 24 Connection at 7200 bits/s

CONNECT 12000 EC* 25 Connection at 12000 bits/s

CONNECT 16800 EC* 86 Connection at 16800 bits/s

CONNECT 300 EC* 40 Connection at 300 bits/s

CONNECT 21600 EC* 55 Connection at 21600 bits/s

CONNECT 24000 EC* 56 Connection at 24000 bits/s

CONNECT 26400 EC* 57 Connection at 26400 bits/s

CONNECT 28800 EC* 58 Connection at 28800 bits/s

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1–6 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

CONNECT 31200 EC* 59 Connection at 31200 bits/s

CONNECT 33600 EC* 60 Connection at 33600 bits/s

CONNECT 38400 EC* 28 Connection at 38400 bits/s

(DTE rate)

CONNECT 57600 EC* 18 Connection at 57600 bits/s

(DTE rate)

CONNECT 115200 EC 87 Connection at 115200 bits/s

(DTE rate)

DELAYED 88 Delay is in effect for the

dialed number

BLACKLISTED 89 Dialed number is blacklisted

OK 0 Command executed

CONNECT 1 Modem connected to line

RING 2 A ring signal has been

detected

NO CARRIER 3 Modem lost carrier signal,

or does not detect carrier

signal, or does not detect

answer tone

ERROR 4 Invalid command

CONNECT 1200 EC* 5 Connection at 1200 bits/s

NO DIALTONE 6 No dial tone detected

BUSY 7 Busy signal detected

NO ANSWER 8 Remote end never answered

CONNECT 2400 EC* 10 Connection at 2400 bits/s

CONNECT 4800 EC* 11 Connection at 4800 bits/s

CONNECT 9600 EC* 12 Connection at 9600 bits/s

Result Code Summary

(Continued)

Result Code Numeric Description

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–7

CONNECT 14400 EC* 13 Connection at 14400 bits/s

CONNECT 19200 EC* 14 Connection at 19200 bits/s

CONNECT 7200 EC* 24 Connection at 7200 bits/s

CONNECT 12000 EC* 25 Connection at 12000 bits/s

CONNECT 16800 EC* 86 Connection at 16800 bits/s

CONNECT 300 EC* 40 Connection at 300 bits/s

CONNECT 21600 EC* 55 Connection at 21600 bits/s

CONNECT 24000 EC* 56 Connection at 24000 bits/s

CONNECT 26400 EC* 57 Connection at 26400 bits/s

CONNECT 28800 EC* 58 Connection at 28800 bits/s

CONNECT 31200 EC* 59 Connection at 31200 bits/s

CONNECT 33600 EC* 60 Connection at 33600 bits/s

CONNECT 38400 EC* 28 Connection at 38400 bits/s

(DTE rate)

CONNECT 57600 EC* 18 Connection at 57600 bits/s

(DTE rate)

CONNECT 115200 EC 87 Connection at 115200 bits/s

(DTE rate)

DELAYED 88 Delay is in effect for the

dialed number

BLACKLISTED 89 Dialed number is blacklisted

BLACKLIST FULL 90 Blacklist is full

CONNECT 32000 EC* 70 Connection at 32000 bits/s

(K56flex mode) or V.90

CONNECT 34000 EC* 71 Connection at 34000

bits/sbits/s (K56flex mode)

Result Code Summary

(Continued)

Result Code Numeric Description

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1–8 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

CONNECT 36000 EC* 72 Connection at 36000 bits/s

(K56flex mode) or V.90

CONNECT 38000 EC* 73 Connection at 38000 bits/s

(K56flex mode)

CONNECT 40000 EC* 74 Connection at 40000 bits/s

(K56flex mode) or V.90

CONNECT 42000 EC* 75 Connection at 42000 bits/s

(K56flex mode)

CONNECT 44000 EC* 76 Connection at 44000 bits/s

(K56flex mode) or V.90

CONNECT 46000 EC* 77 Connection at 46000 bits/s

(K56flex mode)

CONNECT 48000 EC* 78 Connection at 48000 bits/s

(K56flex mode) or V.90

CONNECT 50000 EC* 79 Connection at 50000 bits/s

(K56flex mode)

CONNECT 52000 EC* 80 Connection at 52000 bits/s

(K56flex mode) or V.90

CONNECT 54000 EC* 81 Connection at 54000 bits/s

(K56flex mode)

CONNECT 56000 EC* 82 Connection at 56000 bits/s

(K56flex mode)

CONNECT 28000 EC* 100 Connection at 28000 bits/s

(V.90 mode)

CONNECT 29333 EC* 101 Connection at 29333 bits/s

(V.90 mode)

CONNECT 30666 EC* 102 Connection at 30666 bits/s

(V.90 mode)

CONNECT 33333 EC* 103 Connection at 33333 bits/s

(V.90 mode)

Result Code Summary

(Continued)

Result Code Numeric Description

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–9

CONNECT 34666 EC* 104 Connection at 34666 bits/s

(V.90 mode)

CONNECT 37333 EC* 105 Connection at 37333 bits/s

(V.90 mode)

CONNECT 38666 EC* 106 Connection at 38666 bits/s

(V.90 mode)

CONNECT 41333 EC* 107 Connection at 41333 bits/s

(V.90 mode)

CONNECT 42666 EC* 108 Connection at 42666 bits/s

(V.90 mode)

CONNECT 45333 EC* 109 Connection at 45333 bits/s

(V.90 mode)

CONNECT 46666 EC* 110 Connection at 46666 bits/s

(V.90 mode)

CONNECT 49333 EC* 111 Connection at 49333 bits/s

(V.90 mode)

CONNECT 50666 EC* 112 Connection at 50666 bits/s

(V.90 mode)

Result Code Summary

(Continued)

Result Code Numeric Description

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1–10 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

CONNECT 53333 EC* 113 Connection at 53333 bits/s

(V.90 mode)

CONNECT 54666 EC* 114 Connection at 54666 bits/s

(V.90 mode)

*EC only appears when the extended result codes configuration

option is enabled. EC is replaced by one of the following symbols,

depending upon the error control method used:

■V.42bis–V.42 error control and V.42bis data compression

■V.42–V.42 error control only

■MNP 5-MNP class 4 error control and MNP class 5 data

compression

■MNP 4-MNP class 4 error control only

■NoEC-No error control protocol

Result Code Summary

(Continued)

Result Code Numeric Description

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–11

AT Command Descriptions

+++ Escape Sequence

The escape sequence allows the modem to exit data mode

and enter online command mode. While in online command

mode, you may communicate directly to your modem using

AT commands. Once you are finished, you may return to data

mode using the ATO command.

A pause, the length of which is set by the Escape Guard Time

(S12), must be used after an escape sequence is issued. This

pause prevents the modem from interpreting the escape sequence

as data.

The value of the escape sequence character may be changed using

Do not precede this command with an AT prefix or conclude it by

pressing enter.

A Answer Command

This command instructs the modem to go off-hook and answer an

incoming call.

A/ Repeat Last Command

This command repeats the last command string entered. Do not

precede this command with an AT prefix or conclude it by

pressing enter.

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1–12 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

Bn Communication Standard Setting

This command determines CCITT vs. Bell standard.

B0 Selects CCITT V.22 mode when the modem is at

1200 bits/s.

B1 Selects Bell 212A when the modem is at 1200 bits/s

(default).

B2 Deselects V.23 reverse channel (same as B3).

B3 Deselects V.23 reverse channel (same as B2).

B15 Selects V.21 when the modem is at 300 bits/s.

B16 Selects Bell 103J when the modem is at 300 bits/s

(default).

Result Codes

OK n = 0, 1, 2, 3, 15, 16

ERROR Otherwise

Cn Carrier Control

The modem will accept the C1 command without error in order to

assure backward compatibility with communications software

that issues the C1 command. However, this modem does not

support the C0 command. The C0 command may instruct some

other modems to not send carrier (i.e., it puts them in a

receive-only mode).

C0 Transmit carrier always off.

C1 Normal transmit carrier switching.

Result Codes

OK n = 1

ERROR Otherwise

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–13

Dn Dial

This command instructs the modem to begin the dialing

sequence. The dial string (n, including modifiers and the

telephone number) is entered after the ATD command.

A dial string can be up to 40 characters long. Any digit or symbol

(0–9, *, #, A, B, C, D) may be dialed as touch-tone digits.

Characters such as spaces, hyphens, and parentheses do not

count; they are ignored by the modem and may be included in the

dial string to enhance readability.

The following may be used as dial string modifiers.

LRedials last number. Should be the first character following

ATD, ignored otherwise.

PPulse dialing.

TTouch-tone dialing (default).

,Pause during dialing. Pause for time specified in Register S8

before processing the next character in the dial string.

WWait for dial tone. Modem waits for a second dial tone before

processing the dial string.

@Wait for quiet answer. Wait for five seconds of silence after

dialing the number. If silence is not detected, the modem

sends a NO ANSWER result code back to the user.

!Hook flash. Causes the modem to go on-hook for 0.5

seconds and then return to off-hook.

;Return to command mode. Causes the modem to return to

command mode after dialing the number without

disconnecting the call.

^Disable data calling tone transmission.

S=n Dial a telephone number previously stored using the &Zn=x

command (see the &Zn=x command for further information).

The range of n is 0–3.

$Bong tone detection.

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1–14 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

En Echo Command

This command controls whether the characters entered from your

computer keyboard are echoed back to your monitor while the

modem is in command mode.

E0 Disables echo to the computer.

E1 Enables echo to the computer (default).

Result Codes

OK n = 0, 1

ERROR Otherwise

Fn Online Data Character Echo Command

This command determines whether the modem will echo data

from the DTE. This modem does not support the F0 version of the

command. However, the modem will accept F1, which may be

issued by older communication software, to assure backward

compatibility.

F0 Online data character echo enabled (NOT SUPPORTED,

responds ERROR).

F1 Online character echo disabled.

Result Codes

OK n = 1

ERROR Otherwise

Hn Hook Control

This command instructs the modem to go on-hook to disconnect a

call, or off-hook to make the phone line busy.

H0 Modem goes on-hook (default).

H1 Modem goes off-hook.

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–15

Result Codes

OK n = 0, 1

ERROR Otherwise

In Request ID Information

This command displays specific product information about the

modem.

I0 Returns default speed and controller firmware version,

same as I3.

I1 Calculates ROM checksum and displays it on the DTE.

I2 Performs a ROM check and calculates and verifies the

checksum displaying OK or ERROR.

I3 Returns the default speed and the controller firmware

version, same as I0.

I4 Returns firmware version for data pump.

I5 Returns the board ID: software version, hardware version,

and country ID.

I6 Returns OK.

I7 Returns OK.

I8 Returns OK.

I9 Returns country code (i.e., NA Ver. 1).

I11 Displays connection information as described in following

table.

Result Codes

OK n = 0, 1, 2, 3, 4, 9

ERROR Otherwise

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1–16 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

The ATI11 result has two pages; the user must hit a key to get the

second page.

Press any key to continue; ESC to quit.

Description

K56flex

Connection

V.9 0

Connection

1 Last Connection 56K V.90

2 Initial Transmit

Carrier Rate

28800 28800

3 Initial Receive Carrier

Rate

50000 49333

4 Final Transmit Carrier

Rate

28800 28800

5 Final Receive Carrier

Rate

50000 49333

6 Protocol Negotiation

Result

LAPM LAPM

7 Data Compression

Result

V42bis V42bis

8 Estimated Noise

Level

152 152

9 Receive Signal

Power Level (-dBm)

25 25

10 Transmit Signal

Power Level (-dBm)

16 16

11 Round Trip Delay

(msec)

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–17

The ATI11 command may be issued from online command mode

or after the end of a call. After a call, some values are no longer

valid; it is useful to know which ones. Each of the line items in

the ATI11 result is explained next:

1. V.90, 56K, V.34, or V.32 depending on the type of connection

negotiated.

2. Initial upstream rate.

Description

K56flex

Connection

V.9 0

Connection

12 Near Echo Level

(-dBm)

NA NA

13 Far Echo Level

(-dBm)

NA NA

14 Transmit Frame

Count

15 Transmit Frame Error

Count

16 Receive Frame Count 0 0

17 Receive Frame Error

Count

18 Retrain by Local

Modem

19 Retrain by Remote

Modem

20 Call Termination

Cause

21 Robbed-Bit Signaling 00 00

22 Digital Loss (dB) 6 6

23 Remote Server ID 4342C3 NA

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1–18 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

3. Initial downstream rate.

4. Current or final upstream rate.

5. Current or final downstream rate.

6. LAPM or MNP or None, depending on V.42 negotiation.

7. V42bis or MNP or None, depending on V.42 negotiation.

8. Mean-square error of received downstream signal. This is the

difference between received constellation point and reference

decision point. This is a dimensionless decimal number, only

valid during a call. Higher numbers are worse. There is no

absolute quality threshold; it depends on the downstream data

rate. The number varies during a call, so it can be useful to

sample a few times.

The received signal power, although labeled -dBm, is only a

relative measure for comparing calls to/from different

locations. Only valid during a call.

9. Upstream transmit signal power.

10. Round-trip delay in milliseconds.

11. Echo levels are valid for V.34 only.

12. Echo levels are valid for V.34 only.

13. Number of LAPM frames sent upstream during this call.

Count wraps around at 65535.

14. Number of REJ frames received at the analog client modem.

15. Number of LAPM frames received by the client during

this call. Count wraps around at 65535.

16. Number of frames received in error by the client.

17. Number of retrains or rate renegotiations requested by this

modem.

18. Number of retrains or rate renegotiations requested by remote

modem.

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–19

19. Reason for call ending, only valid after call ends:

0 Local modem command: ATH, DTR drop

1 Remote modem: cleardown, loss of signal

2 No answer, busy, etc.

3 Training failure V.90, K56flex or V.34.

4 Protocol failure if required by \N4, for example.

20. For PCM connection only, a hexadecimal 6-bit pattern of

T1 frames with robbed-bit signaling.

21. For PCM connection only, the downstream digital loss.

22. For K56flex connection only, the V.8bis info sent by the

server. Meaning is defined at the server and by convention.

23. Example above is from a recent Ascend MAX in u-Law.

Ln Monitor Speaker Volume

This command sets speaker volume to low, medium, or high.

L0 Selects low volume.

L1 Selects low volume.

L2 Selects medium volume (default).

L3 Selects high volume.

Result Codes

OK n = 0, 1, 2, 3

ERROR Otherwise

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1–20 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

Mn Monitor Speaker Mode

This command turns the speaker on or off.

M0 The speaker is off.

M1 The speaker is on until the modem detects the carrier signal

(default).

M2 The speaker is always on when modem is off-hook.

M3 The speaker is on until the carrier is detected, except while

dialing.

Result Codes

OK n = 0, 1, 2, 3

ERROR Otherwise

Nn Modulation Handshake

This command controls whether or not the local modem performs

a negotiated handshake at connection time with the remote

modem when the communication speed of the two modems is

different.

N0 When originating or answering, this is for handshake only

at the communication standard specified by S37 and the

ATB command.

N1 When originating or answering, begin the handshake only

at the communication standard specified by S37 and the

ATB command. During handshake, fallback to a lower speed

may occur (default).

Result Codes

OK n = 0, 1

ERROR Otherwise

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–21

On Return Online to Data Mode

O0 Instructs the modem to exit online command mode and

return to data mode (see AT Escape Sequence, +++).

O1 This command issues a retrain before returning to online

data mode.

O3 This command issues a rate renegotiation before returning

to online data mode.

Result Codes

OK n = 0, 1, 3

ERROR Otherwise

P Select Pulse Dialing

This command configures the modem for pulse (non touch-tone)

dialing. Dialed digits are pulsed until a T command or dial

modifier is received. Tone dial is the default setting.

Qn Result Code Control

Result codes are informational messages sent from the modem

and displayed on your monitor. Basic result codes are OK,

CONNECT, RING, NO CARRIER, and ERROR. The

ATQ command allows the user to turn result codes on or off.

Q0 Enables modem to send result codes to the computer

(default).

Q1 Disables modem from sending result codes to the

computer.

Result Codes

OK n = 0, 1

ERROR Otherwise

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1–22 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

T Select Tone Dialing

This command instructs the modem to send DTMF tones while

dialing. Dialed digits are tone dialed until a P command or dial

modifier is received. This is the default setting.

Vn DCE Response Format

This command controls whether result codes (including call

progress and negotiation progress messages) are displayed as

words or their numeric equivalents.

For the result code, see the “Result Code Summary” section of

this document.

V0 Displays result codes as digits.

V1 Displays result codes as text (default).

Result Codes

OK n = 0, 1

ERROR Otherwise

Wn Result Code Option

W0 CONNECT result code reports DTE speed. Disable

protocol result codes.

W1 CONNECT result code reports DTE speed. Enable

protocol result codes.

W2 CONNECT result code reports DCE receive speed. Enable

protocol result codes (default).

ATV0 ATV1

Result

Code

Format

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–23

Result Codes

OK n = 0, 1, 2

ERROR Otherwise

Xn Result Code Selection and Call Progress

Monitoring

This command enables tone detection options used in the dialing

process. As these functions are chosen, the result codes of the

modem chip set are also affected. Therefore, this command is

frequently used to control the responses of the modem chip set.

Extended Result Codes

Disabled: Displays only the basic result codes OK,

CONNECT, RING, NO CARRIER, and

ERROR.

Enabled: Displays basic result codes, along with the

connect message and the modem's date rate, and

an indication of the modem’s error correction

and data compression operation.

Extension

Result Code

Dial Tone

Detect

Busy Tone

Detect

X0 Disable Disable Disable

X1 Enable Disable Disable

X2 Enable Enable Disable

X3 Enable Disable Enable

X4 Enable Enable Enable (default)

X5 Enable Enable Enable

X6 Enable Enable Enable

X7 Disable Enable Enable

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1–24 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

Dial Tone Detect

Disabled: The modem dials a call regardless of whether it

detects a dial tone. The period of time the

modem waits before dialing is specified in

Enabled: The modem dials only upon detection of a dial

tone, and disconnects the call if the dial tone is

not detected within 10 seconds.

Busy Tone Detect

Disabled: The modem ignores any busy tones it receives.

Enabled: The modem monitors for busy tones.

Result Codes

OK n = 0, 1, 2, 3, 4, 5, 6, 7

ERROR Otherwise

Yn Long Space Disconnect

Long space disconnect is always disabled.

Y0 Disables long space disconnect (default).

Y1 Enables long space disconnect—NOT SUPPORTED.

Result Codes

OK n = 0

ERROR Otherwise

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–25

Zn Recall Stored Profile

This command instructs the modem chip set to go on-hook and

restore the profile saved by the last &W command. Either Z0 or Z1

restores the same single profile.

Result Codes

OK n = 0, 1

ERROR Otherwise

&Bn V.32 Auto Retrain

This modem always auto retrains.

&B0 Disables V.32 auto retrain—NOT SUPPORTED.

&B1 Enables V.32 auto retrain (default).

Result Codes

OK n = 1

ERROR Otherwise

&Cn Data Carrier Detect (DCD) Control

Data Carrier Detect is a signal from the modem to your computer

indicating that the carrier signal is being received from a remote

modem. DCD normally turns off when the modem no longer

detects the carrier signal.

&C0 The state of the carrier from the remote modem is ignored.

DCD circuit is always on.

&C1 DCD turns on when the remote modem’s carrier signal is

detected, and off when the carrier signal is not detected

(default).

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1–26 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

Result Codes

OK n = 0, 1

ERROR Otherwise

&Dn DTR Control

This command interprets how the modem responds to the state of

the DTR signal and changes to the DTR signal.

&D0 Ignore. The modem ignores the true status of DTR and

treats it as always on. This should only be used if your

computer does not provide DTR to the modem.

&D1 If the DTR signal is not detected while in online data mode,

the modem enters command mode, issues OK result code,

and remains connected.

&D2 If the DTR signal is not detected while in online data mode,

the modem disconnects (default).

&D3 Reset on the on-to-off DTR transition.

Result Codes

OK n = 0, 1, 2, 3

ERROR Otherwise

&Fn Load Factory Settings

This command loads the configuration stored and programmed at

the factory. This operation replaces all of the command options

and the S-register settings in the active configuration with factory

values.

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–27

&Gn V.22bis Guard Tone Control

This command determines which guard tone, if any, to transmit

while transmitting in the high band (answer mode). This

command is only used in V.22 and V.22bis mode. This option is

not used in North America and is for international use only.

&G0 Guard tone disabled (default).

&G1 Sets guard tone to 550 Hz.

&G2 Sets guard tone to 1800 Hz.

Result Codes

OK n = 0, 1, 2

ERROR Otherwise

&Jn Auxiliary Relay Option

&J0 The auxiliary relay is never closed.

&J1 NOT SUPPORTED, responds ERROR.

Result Codes

OK n = 0

ERROR Otherwise

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1–28 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

&Kn Local Flow Control Selection

&K0 Disables flow control.

&K1 Reserved.

&K2 Reserved.

&K3 Enables RTS/CTS flow control (default).

&K4 Enables XON/XOFF flow control.

Result Codes

OK n = 0, 3, 4

ERROR Otherwise

&Mn Asynchronous Communications Mode

&M0 Asynchronous mode (default).

&M1 Reserved.

&M2 Reserved.

&M3 Reserved.

&M4 Reserved.

Result Codes

OK n = 0

ERROR Otherwise

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–29

&Pn Pulse Dial Make-to-Break Ration Selection

&P0 39/61 make/break ratio, 10PPS.

&P1 33/67 make/break ratio, 10PPS (default).

&P2 33/67 make/break ratio, 20PPS.

&P3 Reserved.

&P4 Reserved.

Result Codes

OK n = 0, 1, 2

ERROR Otherwise

&Qn Asynchronous Communications Mode

&Q0 Asynchronous Mode, buffered. Same as \N0.

&Q5 Error Control Mode, buffered (default). Same as \N3.

&Q6 Asynchronous Mode, buffered. Same as \N0.

&Q8 MNP error control mode. If an MNP error control protocol

is not established, the modem will fall back according to

the current user setting in S36.

&Q9 V.42 or MNP error control mode. If either error control

protocol is established, the modem will fall back according

to the current user setting in S36.

Result Codes

OK n = 0, 5, 6, 8, 9

ERROR Otherwise

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1–30 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

&Sn Data Set Ready (DSR) Option

This command selects DSR action.

&S0 DSR always ON (default).

&S1 DSR comes on when establishing a connection and goes

off when the connection ends.

Result Codes

OK n = 0, 1

ERROR Otherwise

&Tn Self-Test Commands

This command allows the user to perform diagnostic tests on the

modem. These tests can help to isolate problems when

experiencing periodic data loss or random errors.

&T0 Abort. Stops any test in progress.

&T1 Local analog loop. This test verifies modem operation, as

well as the connection between the modem and computer.

Any data entered at the local DTE is modulated, then

demodulated, and returned to the local DTE. To work

properly, the modem must be offline.

&T3 Local digital loopback test.

&T6 Remote digital loopback test. This test can verify the

integrity of the local modem, the communications link, and

the remote modem. Any data entered at the local DTE is

sent to, and returned from the remote modem. To work

properly, the modems must be online with error control

disabled.

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–31

Result Codes

OK n = 0

CONNECT n = 1, 3, 6

ERROR Otherwise

&V View Active Configuration and Stored

Profile

This command is used to display the active profiles.

&V0 View active file.

For example:

Press any key to continue; ESC to quit.

Option Selection AT Command

Comm Standard Bell B

CommandCharEcho Enabled E

Speaker Volume Medium L

Speaker Control OnUntilCarrier M

Result Codes Enabled Q

Dialer Type Tone T/P

Result Code Form Text V

Extend Result Code Enabled X

Dial Tone Detect Enabled X

Busy Tone Detect Enabled X

LSD Action Standard RS232 &C

DTR Action Standard RS232 &D

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1–32 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

Press any key to continue; ESC to quit.

Option Selection AT Command

V22b Guard Tone Disabled &G

Flow Control Hardware &K

Error Control Mode V42, MNP, Buffer \N

Data Compression Enabled %C

AutoAnswerRing# 0 S0

AT Escape Char 43 S2

CarriageReturnChar 13 S3

Linefeed Char 10 S4

Backspace Char 8 S5

Blind Dial Pause 2 sec S6

NoAnswer Timeout 50 sec S7

" , " Pause Time 2 sec S8

Option Selection AT Command

No Carrier Disc 2000 msec S10

DTMF Dial Speed 95 msec S11

Escape GuardTime 1000 msec S12

Data Calling Tone Disabled S35

Line Rate 33600 S37

DSVD mode Disabled -SSE

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–33

Stored Phone Numbers

&Z0=

&Z1=

&Z2=

&Z3=

&Wn Store Current Configuration

This command stores certain command options and S-register

values into the nonvolatile memory of the modem. The

ATZ command or a power-up reset of the modem restores this

profile.

Result Codes

OK n = 0

ERROR Otherwise

&Yn Select Stored Profile for Hard Reset

This command does not change the behavior of the modem, but

is included for compatibility with applications that issue the

&Y0 command.

&Y0 Select stored profile 0 on power-up.

&Y1 ERROR

Result Codes

OK n = 0

ERROR Otherwise

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1–34 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

&Zn=x Store Telephone Number

This command is used to store up to four dialing strings in the

nonvolatile memory of the modem for later dialing. The format

for the command is &Zn = "stored number" where n is the location

0–3 to which the number should be written. The dial string may

contain up to 40 characters. The ATDS = n command dials using the

string stored in location n.

Result Codes

OK n = 0, 1, 2, 3

ERROR Otherwise

\An Select Maximum MNP Block Size

The modem will operate an MNP error corrected link using a

maximum block size controlled by the parameter supplied.

\A0 64 characters

\A1 128 characters

\A2 192 characters

\A3 256 characters (default)

Result Codes

OK n = 0, 1, 2, 3

ERROR Otherwise

\Bn Transmit Break to Remote

In non-error-control mode, the modem will transmit a break

signal to the remote modem with a length in multiples of 100ms

according to parameter specified. The command works in

conjunction with the \K command.

\B1–\B9Break length in 100ms units. (Default = 3;

non-error-control mode only.)

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–35

Result Codes

OK If connected in data modem mode.

NO CARRIER If not connected or connected in fax

modem mode.

\Gn Modem Port Flow Control

\G0 Returns an “OK” for compatibility (default).

\G1 NOT SUPPORTED, responds ERROR.

Result Codes

OK n = 0

ERROR Otherwise

\J Bits/s Rate Adjusted

This command determines whether or not the negotiated connect

speed of the modem forces the adjustment of the speed of the

DTE to the speed of the modem.

\J0 Buffer mode. Error control selected (or not) by

\Nn command (default).

\J1 Force the max DCE rate to the DTE rate.

Result Codes

OK n = 0, 1

ERROR Otherwise

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1–36 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

\K Break Control

Controls the response of the modem to a break received from the

DTE or the remote modem or the \B command. The response is

different in three separate cases.

The first case is where the modem receives a break from the DTE

when the modem is operating in data transfer mode:

\K0 Enter online command mode, no break sent to remote

modem.

\K1 Clear data buffers and send break to remote modem.

\K2 Same as \K0.

\K3 Send break to remote modem immediately.

\K4 Same as \K0.

\K5 Send break to remote modem in sequence with transmitted

data (default).

The second case is where the modem is in the online command

state (waiting for AT commands) during a data connection, and

the \B is received in order to send a break to the remote modem:

\K0 Clear data buffers and send break to remote modem.

\K1 Clear data buffers and send break to remote modem.

Same as \K0.

\K2 Send break to remote modem immediately.

\K3 Send break to remote modem immediately. Same as \K2.

\K4 Send break to remote modem in sequence with

transmitted data.

\K5 Send break to remote modem in sequence with transmitted

data. Same as \K4; default.

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–37

The third case is where there is a break received from a remote

modem during a connection:

\K0 Clear data buffers and send break to the DTE.

\K1 Clear data buffers and send break to the DTE.

Same as \K0.

\K2 Send break immediately to DTE.

\K3 Send break immediately to DTE. Same as \K2.

\K4 Send break in sequence with received data to DTE.

\K5 Send break in sequence with received data to DTE.

Same as \K4; default.

Result Codes

OK n = 0, 1, 2, 3, 4, 5

ERROR Otherwise

\Nn Error Control Mode Selection

This command determines the type of error control used by the

modem when sending or receiving data.

\N0 Buffer mode. No error control. Same as &Q6.

\N1 Direct mode.

\N2 MNP or disconnect mode. The modem attempts to connect

using MNP 2-4 error control procedures. If this fails, the

modem disconnects. This is also known as MNP

reliable mode.

\N3 V.42, MNP, or buffer (default). The modem attempts to

connect in V.42 error control mode. If this fails, the

modem attempts to connect in MNP mode. If this fails, the

modem connects in buffer mode and continues operation.

This is also known as V.42/MNP auto reliable mode. Same

as &Q5.

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1–38 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

\N4 V.42 or disconnect. The modem attempts to connect in

V.42 error control mode. If this fails, the call will be

disconnected.

\N5 V.42. MNP or buffer. Same as \N3.

\N7 V.42. MNP or buffer. Same as \N3.

Result Codes

OK n = 0, 1, 2, 3, 4,5,7

\Qn Local Flow Control Selection

\Q0 Disable flow control. Same as &K0.

\Q1 XON/XOFF software flow control. Same as &K4.

\Q2 CTS-only flow control. This is not supported and the

response is ERROR.

\Q3 RTS/CTS to DTE (default). Same as &K3.

Result Codes

OK n = 0, 1, 3

ERROR Otherwise

\Rn Ring indicator signal off after the telephone

call is answered (Compatibility command)

\R0 Ring indicator signal is off after the telephone call is

answered.

Result Codes

OK n = 0

ERROR Otherwise

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–39

\Tn Inactivity Timer

This command specifies the length of time (in minutes) that the

modem will wait before disconnecting when no data is sent or

received. A setting of zero disables the timer. Alternatively, this

timer may be specified in Register S30. This function is only

applicable to buffer mode.

\T0 Inactivity timer disabled (default).

Result Codes

OK n = 0-255

ERROR Otherwise

\Vn Protocol Result Code

\V0 Disable protocol result code appended to DCE speed.

\V1 Enable protocol result code appended to DCE speed

(default).

\V2 Same as \V1.

Result Codes

OK n = 0, 1

ERROR Otherwise

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1–40 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

\Xn XON/XOFF Pass Through

\X0 Modem processes XON/XOFF flow control characters

locally (default).

\X1 Modem processes and passes XON/XOFF flow control

characters.

Result Codes

OK n = 0, 1

ERROR Otherwise

-Cn Data Calling Tone

Data Calling Tone is a tone of certain frequency and cadence

as specified in V.25 which allows remote Data/FAX/Voice

discrimination. The frequency is 1300 Hz with a cadence of

.5 s on and 2 s off.

-CO Disabled (default).

-C1 Enabled.

Result Codes

OK n = 0, 1

ERROR Otherwise

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–41

-V90=<n> Command to enable/disable V.90 and

change downstream rate

-V90=0 Disables V.90.

-V90=1 Enables V.90 Auto Rate (default value).

-V90=n Controls the downstream rate.

-V90? Shows the current value.

-V90=? Shows the range [0–21].

The table below shows the possible values of n.

AT-V90=n Downstream Rate

0V.90 disabled

1Auto Rate (default)

228000 kbit/s

329333 kbit/s

430666 kbit/s

532000 kbit/s

633333 kbit/s

734666 kbit/s

836000 kbit/s

937333 kbit/s

10 38666 kbit/s

11 40000 kbit/s

12 41333 kbit/s

13 42666 kbit/s

14 44000 kbit/s

(Continued)

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1–42 Lucent/Agere Command Set (Advanced Users Only)

AT Command Set

%B View Numbers in Blacklist

If blacklisting is in effect, this command displays the numbers for

which the last call attempted in the past two hours failed. The

ERROR result code appears in countries that do not require

blacklisting.

%Cn Data Compression Control

This command determines the operation of V.42bis and MNP

class 5 data compression. Online changes do not take effect until

a disconnect occurs first.

%C0 V.42bis/MNP 5 disabled. No data compression.

%C1 V.42bis/MNP 5 enabled. Data compression enabled

(default).

Result Codes

OK n = 0, 1

ERROR Otherwise

15 45333 kbit/s

16 46666 kbit/s

17 48000 kbit/s

18 49333 kbit/s

19 50666 kbit/s

20 52000 kbit/s

21 53333 kbit/s

AT-V90=n Downstream Rate

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AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 1–43

%En Enable/Disable Auto-Retrain and

Fallback/Fall Forward

Provides option for the modem to automatically monitor line

quality to fall back when line quality is insufficient and to fall

forward when line quality is sufficient.

%E0 Disables fallback/fall forward.

%E1 Enables fallback/disable fall forward.

%E2 Enables fallback/fall forward (default).

Result Codes

OK n = 0, 1, 2

ERROR Otherwise

VDR Distinctive Ring and Cadence Report

This command enables the distinctive ring feature which allows a

report of DROF/DRON to follow an exact ring cadence sent over

the phone line.

VDR? Returns the current values of <enable> and

<report>/.

VDR+? Queries the DCE for the range of supported

distinctive ring configurations.

DCE returns: (0,1), (0-255)

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Lucent/Agere Command Set (Advanced Users Only) 2–2

S-Registers

Setting S-Register Default Values

The S-register default values function reliably under most

circumstances. However, these values may be modified if

necessary.

For example, it may take an especially long time to get a dial

tone in your office, so you may choose to reset S7 for a

longer wait time.

Modifying an S-Register

You can modify or change the value of an S-register from

Command Mode (Terminal Mode) or from a standard data or fax

communication application. For example:

■Type ATS11=70, then press enter.

■This sets S11 to a value of 70.

■If you then enter AT = 95, it resets S11 to a value of 95 since the

modem remembered that S11 was the last register referenced.

■If you enter an S = command with no parameter (value), the

value of S0. Therefore, the following commands are

equivalent: ATS0 = 3 and ATS = 3.

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2–3 Lucent/Agere Command Set (Advanced Users Only)

S-Registers

Reading an S-Register

To read the contents of a given S-register in the Terminal Mode

(Command Mode), type ATSn? (where n is the number of the

When modifying a register, the modem also remembers the

location of the last inquiry. For example, the following sequence

of commands display the contents of the S11 register:

ATS11? This command displays the value of S11.

AT? This command also displays the value of S11.

When you use an S? with no value, the register number defaults to

zero and the modem responds with the value of S0 (for example

ATS?).

S0 0 Automatic answer ring number

S1 0 Ring counter

S2 43 AT escape character

S3 13 Command line termination character

S4 10 Response formatting character

S5 8 Command line editing character

S6 2 Wait before dialing

S7 50 Connection completion time-out

S8 2 Comma dial modifier time

S10 20 Automatic disconnect delay

S11 95 DTMF dialing speed

S12 50 Escape guard time

S14 8 General bit-mapped options status

S21 48 V.24 bit-mapped options status

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S-Registers

Lucent/Agere Command Set (Advanced Users Only) 2–4

*S-registers 42 and 43 are for test and debugging purposes only.

S22 112 Results bit-mapped options status

S24 10 Timer to control sleep mode

S28 1 V.34 modulation enable/disable

S30 0 Inactivity timer

S32 Synthetic ring volume

S33 Synthetic ring frequency

S35 0 Data calling tone

S36 7 Negotiation fallback

S37 0 Dial line rate

S38 1 Enable/disable K56flex settings

S42* 1 Auto rate

S43* 1 Auto mode

S48 7 LAPM error control and feature

negotiation

S89 10 Timer to control sleep mode

S90 Read-only local phone

S91 15 Line transmit level

S108 7 Network codec type

S109 Enable

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2–5 Lucent/Agere Command Set (Advanced Users Only)

S-Registers

S-Register Descriptions

S0 Auto Answer Ring Number

This register determines the number of rings the modem will

count before automatically answering a call. Enter 0 (zero) if you

do not want the modem to automatically answer at all. When

disabled, the modem can only answer with an ATA command.

Range: 0-255

Default: 0

Units: Rings

S1 Ring Counter

This register is read-only. The value of S1 is incremented with

each ring. If no rings occur over a six second interval, this register

is cleared.

Range: 0-255

Default: 0

Units: Rings

S2 AT Escape Character (user defined)

This register determines the ASCII value used for an escape

sequence. The default is the + character. The escape sequence

allows the modem to exit data mode and enter command mode

when online. Values greater than 127 disable the escape

sequence.

Range: 0-255

Default: 43

Units: ASCII

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S-Registers

Lucent/Agere Command Set (Advanced Users Only) 2–6

S3 Command Line Termination Character

(user defined)

This register determines the ASCII values as the carriage return

character. This character is used to end command lines and result

codes.

Range: 0-127, ASCII decimal

Default: 13 (carriage return)

Units: ASCII

S4 Response Formatting Character

(user defined)

This register determines the ASCII value used as the line feed

character. The modem uses a line feed character in command

mode when it responds to the computer.

Range: 0-127, ASCII decimal

Default: 10 (line feed)

Units: ASCII

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2–7 Lucent/Agere Command Set (Advanced Users Only)

S-Registers

S5 Command Line Editing Character

(user defined)

This register sets the character recognized as a backspace and

pertains to asynchronous only. The modem will not recognize

the backspace character if it is set to a value that is greater than

32 ASCII. This character can be used to edit a command line.

When the echo command is enabled, the modem echoes the

backspace character, an ASCII space character, and a second

backspace character back to the local DTE. This means a total of

three characters are transmitted each time the modem processes

the backspace character.

Range: 0-127, ASCII decimal

Default: 8 (backspace)

Units: ASCII

S6 Wait Before Dialing

This register sets the length of time, in seconds, that the modem

must wait after going off-hook before dialing the first digit of the

telephone number. The modem always pauses for a minimum of

two seconds, even if the value of S6 is less than two seconds. The

wait for dial tone call progress feature (W dial modifier in the dial

string) will override the value in Register S6. This operation,

however, may be affected by some ATX options according to

country restrictions.

Range: 2-65

Default: 2

Units: Seconds

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S-Registers

Lucent/Agere Command Set (Advanced Users Only) 2–8

S7 Connection Completion Time-Out

This register sets the time, in seconds, that the modem must wait

before hanging up because carrier is not detected. The timer is

started when the modem finishes dialing (originate), or goes

off-hook (answer). In originate mode, the timer is reset upon

detection of an answer tone if allowed by country restriction.

The timer also specifies the wait for silence time for the @

dial modifier in seconds. S7 is not associated with the W dial

modifier.

Range: 1-255

Default: 50

Units: Seconds

S8 Comma Dial Modifier Time

This register sets the time, in seconds, that the modem must pause

when it encounters a comma (,) in the dial command string.

Range: 0-65

Default: 2

Units: Seconds

S10 Automatic Disconnect Delay

This register sets the length of time, in tenths of a second, that the

modem waits before hanging up after a loss of carrier. This allows

for a temporary carrier loss without causing the local modem to

disconnect.

The actual interval the modem waits before disconnecting is the

value in Register S10.

Range: 1-254

Default: 20

Units: .1 seconds

277662-001.book!!Page!8!!Friday,!January!11,!2002!!5:15!PM

2–9 Lucent/Agere Command Set (Advanced Users Only)

S-Registers

S11 DTMF Dialing Speed

This register determines the dialing speed which is prefixed for

each country.

Range: 50-150

Default: 95

Units: .001 seconds

S12 Escape Guard Time

This register sets the value (in 20 ms increments) for the required

pause after the escape sequence (default 1 s).

Range: 0-255

Default: 50

Units: .02 seconds

S14 General Bit Mapped Options Status

Indicates the status of command options. Only bit 3 and bit 6 are

used, read-only.

Bit 3 Result codes (Vn)

0 Numeric (V0)

1 Verbose (V1) (Default)

Bit 6 Pulse dial PPS selection (&Pn)

0 10 PPS (&P0, &P1) (Default)

1 20 PPS (&P2)

Default: 8 (00001000b)

277662-001.book!!Page!9!!Friday,!January!11,!2002!!5:15!PM

S-Registers

Lucent/Agere Command Set (Advanced Users Only) 2–10

S21 V.24/General Bit Mapped Options Status

Indicates the status of command options. Only bits 3, 4, and 5 are

used, read-only.

Bits 3-4 DTR behavior (&Dn)

0 &D0 selected

1 &D1 selected

2 &D2 selected (Default)

3 &D3 selected

Bit 5 DCD behavior (&Cn)

0 &C0 selected

1 &C1 selected (Default)

Default: 48 (00110000b)

S22 Results Bit Mapped Options Status

Indicates the status of command options. Only bits 4, 5, and 6 are

used, read only.

Bits 4-6 Result codes (Xn)

0 X0 selected

4 X1 selected

5 X2 selected

6 X3 selected

7 X4 selected (Default)

Bit 7 Pulse dial make/break ratio (&Pn)

0 33/67 make/break ratio (&P1, &P2) (Default)

1 39/61 make/break ratio (&P0)

Default: 112 (01110000b)

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2–11 Lucent/Agere Command Set (Advanced Users Only)

S-Registers

S24 Timer to Control Sleep Mode

This command displays the number of seconds of inactivity (no

characters sent from DTE, no RING) in the off-line command

state before the modem places itself into standby mode. A value

of zero prevents standby mode. S24 is an alias for S89.

✎If a number between 1 and 4 is entered for this register, it will set

the value to 5, and the inactivity before standby will be 5 seconds.

This is done for compatibility with previous products that allowed

time-outs down to one second.

Range: 0, 5-255

Default: 10

Units: Seconds

S28 V.34 Modulation Enable/Disable

This register enables/disables V.34 modulation.

0 = disabled, 1-255 = enabled

Range: 0-255

Default: 1

S30 Inactivity Timer

S30 specifies the length of time (in minutes) that the modem will

wait before disconnecting when no data is sent or received. This

function is only applicable to buffer mode.

Range: 0-255

Default: 0

Units: Minutes

277662-001.book!!Page!11!!Friday,!January!11,!2002!!5:15!PM

S-Registers

Lucent/Agere Command Set (Advanced Users Only) 2–12

S35 Data Calling Tone

Data Calling Tone is a tone of certain frequency and cadence as

specified in V.25 which allows remote Data/FAX/Voice

discrimination. The frequency is 1300 Hz with a cadence of

.5 s on and 2 s off.

0 = disabled, 1 = enabled

Range: 0-1

Default: 0

S36 Negotiation Fallback

This is a non-operational command that is included for

compatibility with older programs. Use the \N command to

change EC protocol behavior.

S37 Dial Line Rate (default 0)

This register sets the maximum line data rate. In K56flex and

V.90 mode, S37 controls the upstream V.34 rate.

S37 = 0 Auto rate

S37 = 1 Reserved

S37 = 2 1200/75 bits/s

S37 = 3 300 bits/s

S37 = 4 Reserved

S37 = 5 1200 bits/s

S37 = 6 2400 bits/s

S37 = 7 4800 bits/s

S37 = 8 7200 bits/s

S37 = 9 9600 bits/s

S37 = 10 12000 bits/s

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2–13 Lucent/Agere Command Set (Advanced Users Only)

S-Registers

S37 = 11 14400 bits/s

S37 = 12 16800 bits/s

S37 = 13 19200 bits/s

S37 = 14 21600 bits/s

S37 = 15 24000 bits/s

S37 = 16 26400 bits/s

S37 = 17 28800 bits/s

S37 = 18 31200 bits/s

S37 = 19 33600 bits/s

S38 K56flex Downstream Rate

To force a particular K56flex downstream rate, use Register S38.

S38 = 0 disables K56flex, and may allow a more reliable V.34

connection. S38 = 1 default allows the modem to select the

downstream rate automatically. Other values of S38 force the

downstream rate, with fallback to V.34 if unsuccessful at the

configured rate:

S38 = 0 56K disabled

S38 = 1 56K enabled—automatic rate selection (default)

S38 = 2 32000 bits/s

S38 = 3 34000 bits/s

S38 = 4 36000 bits/s

S38 = 5 38000 bits/s

S38 = 6 40000 bits/s

S38 = 7 42000 bits/s

S38 = 8 44000 bits/s

S38 = 9 46000 bits/s

S38 = 10 48000 bits/s

277662-001.book!!Page!13!!Friday,!January!11,!2002!!5:15!PM

S-Registers

Lucent/Agere Command Set (Advanced Users Only) 2–14

S38 = 11 50000 bits/s

S38 = 12 52000 bits/s

S38 = 13 54000 bits/s

S38 = 14 56000 bits/s

The following chart shows how the number of robbed-bit

signaling (RBS) frames detected decreases the true DCE rate.

For example, if S38 = 10 and there are 3 RBS links, the K56flex

downstream rate will be 48–4 = 44 kbit/s. The exception is for

32 kbit/s and 34 kbit/s, which are the true rates regardless of

RBS frames detected.

S42 Auto Rate

This command is used for testing and debugging only.

V.32bis and V.22bis auto rate is disabled. Retrain operation is

disabled or enabled in data mode, and fallback is disabled in

data mode.

0 = auto rate disabled, 1 = enabled.

Range: 0-1

Default: 1

RBS Links Rate Hit (kbit/s)

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2–15 Lucent/Agere Command Set (Advanced Users Only)

S-Registers

S43 Auto Mode

This command is used for testing and debugging only.

V.32bis startup auto mode operation disabled.

0 = auto mode disabled, 1 = enabled.

Range: 0-1

Default: 1

S48 LAPM Error Control and Feature

Negotiation (default 7)

This is a non-operational command that is included for

compatibility with older programs. Use the \N command to

change EC protocol behavior.

S89 Timer to Control Sleep Mode

This command displays the number of seconds of inactivity (no

characters sent from the DTE, no RING) in the offline command

state before the modem places itself into standby mode. A value

of zero prevents standby mode.

✎If a number between 1 and 4 is entered for this register, it will set

the value to 5, and the inactivity before standby will be 5 seconds.

This is done for compatibility with previous products that allowed

time-outs down to one second.

Range: 0, 5-255

Default: 10

277662-001.book!!Page!15!!Friday,!January!11,!2002!!5:15!PM

S-Registers

Lucent/Agere Command Set (Advanced Users Only) 2–16

S91 Line Transmit Level

This register is effective only for Japan. It specifies the line

transmit level in dBm with an implied minus sign.

Range: 6-15

Default: 15

Unites: 1dB

S108 Network Codec Type

S108 = 22 U-Law

S108 = 33 A-law

S108 = 7 Default, or any other value

✎This coding is as specified by digital modem in V.8bis

information. If an old server does not tell its code type in V.8bis,

then the client modem chooses based on its country ID. U-law

regions are Japan, Taiwan, Korea, Hong Kong, North America,

and Latin America. Everywhere else is A-law. This S-register is

valid only in K56flex mode.

277662-001.book!!Page!16!!Friday,!January!11,!2002!!5:15!PM

Lucent/Agere Command Set (Advanced Users Only) 3–1

AT FAX Command Set

Class 1 FAX Commands

The Lucent Technologies HSM Data/FAX Complete Chip Set

supports FAX commands conforming to EIA standard 578. These

commands are given here with short descriptions; complete

explanations are given in the standard, available from the

Electronic Industry Association.

AT FAX Command Set Summary

Command Description

+FCLASS? Service class indication

+FCLASS=? Service class capabilities

+FCLASS=n Service class selection

+FTS=<n> Transmission silence

+FRS=<n> Receive silence

+FTM=<m> Transmit FAX data with <m> carrier

+FRM=<m> Receive FAX data with <m> carrier

+FTH=<m> Transmit HDLC data with <m> carrier

+FRH=<m> Receive HDLC data with <m> carrier

+FTM=? Transmit FAX modulation

+FRM=? Receive FAX modulation

+FTH=? Transmit HDLC data modulation

+FRH=? Receive HDLC data modulation

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3–2 Lucent/Agere Command Set (Advanced Users Only)

AT FAX Command Set

AT FAX Command Set Descriptions

+FCLASS? Service Class Indication

This command causes the modem to display the current setting.

The modem can operate either as a Class 0 data modem or a

Class 1 FAX modem.

Typical responses:

+FCLASS? 000 if in data mode; 001 if in FAX Class 1.

Command Description

+FMI? Manufacturer identification

+FMM? Product identification

+FMR? Version/revision information

+FPR=<n> Set DTE-DCE fax port rate

+FPR= Reports all fax port rate that DCE supports

+FPR? Reports the current fax port rate of DTE-DCE

+FAA=<n> Set DCE adaptive answer mode

+FAA=? Display valid adaptive answer values that DCE

supports

+FAA? Display current set value of adaptive answer mode

+FLO+

<value>

Flow control selection

AT FAX Command Set Summary

(Continued)

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AT FAX Command Set

Lucent/Agere Command Set (Advanced Users Only) 3–3

+FCLASS=?Service Class Capabilities

This command causes the modem to display the classes it

supports.

Typical responses:

+FCLASS=? 0, 1

+FCLASS=nService Class Selection

This command sets the modem for Class n operation, where n is

either a 0 or 1.

Parameters: 0, 1

Default: 0

Command options:

+FCLASS=0 Select data mode.

+FCLASS=1 Select facsimile Class 1.

+FTS=<n> Transmission Silence

This command causes the modem to stop transmitting data and

pause for 10*n ms. At the end of this period, the modem then

responds OK. You can specify any number from 0 through 255

as the value of n; for example, a value of 5 specifies a period of

50 ms.

n = 0-255 (10 ms intervals)

+FRS=<n> Receive Silence

This command causes the modem to listen and wait for a 10*n ms

period of silence on the line. At the end of this period, the modem

then responds OK. You can specify any number from 0 through

255 as the value of n; for example, a value of 5 specifies a period

of 50 ms.

n = 0-255 (10 ms intervals)

277662-001.book!!Page!3!!Friday,!January!11,!2002!!5:15!PM

3–4 Lucent/Agere Command Set (Advanced Users Only)

AT FAX Command Set

+FTM=<m> Transmit FAX Data with <m> Carrier

This command causes the modem to transmit data at the

modulation specified by <m>. The following chart shows the

values you can enter for this command and the meaning of those

values.

Command Option Modulation Speed (bits/s)

+FTM=3 V.21 Channel 2 300

+FTM=24 V.27ter 2400

+FTM=48 V.27ter 4800

+FTM=72 V.29 7200

+FTM=96 V.29 9600

+FTM=73 V.17 7200

+FTM=74 V.17 (short train) 7200

+FTM=97 V.17 9600

+FTM=98 V.17 (short train) 9600

+FTM=121 V.17 12000

+FTM=122 V.17 (short train) 12000

+FTM=145 V.17 14400

+FTM=146 V.17 (short train) 14400

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AT FAX Command Set

Lucent/Agere Command Set (Advanced Users Only) 3–5

+FRM=<m> Receive FAX Data with <m> Carrier

This command causes the modem to receive data at the

modulation specified by <m>.

Command Option Modulation Speed (bits/s)

+FRM=3 V.21 Channel 2 300

+FRM=24 V.27ter 2400

+FRM=48 V.27ter 4800

+FRM=72 V.29 7200

+FRM=96 V.29 9600

+FRM=73 V.17 7200

+FRM=74 V.17 (short train) 7200

+FRM=97 V.17 9600

+FRM=98 V.17 (short train) 9600

+FRM=121 V.17 12000

+FRM=122 V.17 (short train) 12000

+FRM=145 V.17 14400

+FRM=146 V.17 (short train) 14400

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3–6 Lucent/Agere Command Set (Advanced Users Only)

AT FAX Command Set

+FTH=<m> Transmit HDLC Data with <m>

Carrier

This command causes the modem to transmit data framed in the

HDLC protocol at the modulation specified by <m>.

Command Option Modulation Speed (bits/s)

+FTH=3 V.21 Channel 2 300

+FTH=24 V.27ter 2400

+FTH=48 V.27ter 4800

+FTH=72 V.29 7200

+FTH=96 V.29 9600

+FTH=73 V.17 7200

+FTH=74 V.17 (short train) 7200

+FTH=97 V.17 9600

+FTH=98 V.17 (short train) 9600

+FTH=121 V.17 12000

+FTH=122 V.17 (short train) 12000

+FTH=145 V.17 14400

+FTH=146 V.17 (short train) 14400

277662-001.book!!Page!6!!Friday,!January!11,!2002!!5:15!PM

AT FAX Command Set

Lucent/Agere Command Set (Advanced Users Only) 3–7

+FRH=<m> Receive HDLC Data with <m> Carrier

This command causes the modem to receive data framed in the

HDLC protocol at the modulation specified by <m>.

Command Option Modulation Speed (bits/s)

+FRH=3 V.21 Channel 2 300

+FRH=24 V.27ter 2400

+FRH=48 V.27ter 4800

+FRH=72 V.29 7200

+FRH=96 V.29 9600

+FRH=73 V.17 7200

+FRH=74 V.17 (short train) 7200

+FRH=97 V.17 9600

+FRH=98 V.17 (short train) 9600

+FRH=121 V.17 12000

+FRH=122 V.17 (short train) 12000

+FRH=145 V.17 14400

+FRH=146 V.17 (short train) 14400

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3–8 Lucent/Agere Command Set (Advanced Users Only)

AT FAX Command Set

+FPR=<n> Select Fax Port Rate

This command sets the DTE to DCE fax port rate.

DTE Command DCE Action Description or Notes

+FPR=0 Execute +IPR=0 Select automatic rate

detection

+FPR=1 Execute +IPR=2400 Set DTE-DCE to

2400 bit/s

+FPR=2 Execute +IPR=4800 Set DTE-DCE to

4800 bit/s

+FPR=4 Execute +IPR=9600 Set DTE-DCE to

9600 bit/s

+FPR=8 Execute +IPR=19200 Set DTE-DCE to

19200 bit/s

+FPR=10 Execute +IPR=38400 Set DTE-DCE to

38400 bit/s

+FPR=18 Execute +IPR=57600 Set DTE-DCE to

57600 bit/s

+FPR=? (if all

values listed

above are

supported)

Report

(0,1,2,4,8,10,18)

DCE supports 2400,

4800, 9600, 19200,

38400, and 57600 bit/s

+FPR? (if

+IPR=0)

Report 0 DTE-DCE rate is

automatically detected

+FPR? (if

+IPR=2400)

Report 1 DTE-DCE rate is

2400 bit/s

+FPR? (if

+IPR=4800)

Report 2 DTE-DCE rate is

4800 bit/s

+FPR? (if

+IPR=9600)

Report 4 DTE-DCE rate is

9600 bit/s

+FPR? (if

+IPR=19200)

Report 8 DTE-DCE rate is

19200 bit/s

277662-001.book!!Page!8!!Friday,!January!11,!2002!!5:15!PM

AT FAX Command Set

Lucent/Agere Command Set (Advanced Users Only) 3–9

+FAA Adaptive Answer

A Service Class 1 Facsimile DCE may have the ability to answer

as a data modem DCE or as a Facsimile DCE. It also may be able

to adaptively change from Class 1 facsimile mode (+FCLASS = 1.0)

to data modem operation (+FCLASS = 0) in response to the

incoming call. The +FAA parameter controls this feature.

Write syntax: +FAA=<value>

Valid values: 0, 1

Default value: 0

Mandatory

value: 0

+FAA=0 The DCE answers only as a Class 1 facsimile

device. No automatic switching of service class

shall occur based on the calling device type.

+FAA=1 The DCE can answer and automatically

determine whether to answer as a facsimile DCE

or as a data modem. If a data modem is detected,

the DCE operates as described in 8.3.2.4.

✎The +FAA parameter controls automatic switching only from

Class 1 to Class 0 for call answering only. It does not affect call

origination, switching to Class 1 from other classes, or switching

to classes other than Class 0.

+FPR? (if

+IPR=38400)

Report 10 DTE-DCE rate is

38400 bit/s

+FPR? (if

+IPR=57600)

Report 18 DTE-DCE rate is

57600 bit/s

+FPR? (all other

+IPR settings)

Report 255 255 indicates invalid

setting

DTE Command DCE Action Description or Notes

277662-001.book!!Page!9!!Friday,!January!11,!2002!!5:15!PM

3–10 Lucent/Agere Command Set (Advanced Users Only)

AT FAX Command Set

+FMI? Manufacturer Identification

Read Syntax: AT+FMI?

This parameter reports the manufacturer identification.

+FMM? Product Identification

Read Syntax: AT+FMM?

This parameter reports product identification.

+FMR? Version / Revision Information

Read Syntax: AT+FMR?

This parameter reports the version, revision level, or other

pertinent information for the device.

277662-001.book!!Page!10!!Friday,!January!11,!2002!!5:15!PM

Lucent/Agere Command Set (Advanced Users Only) 4–1

V.25ter AT Command Set

These +GMx commands are required by Microsoft PC9x

specifications:

■Manufacturer Identification (+GMI?)

■Version/Revision Information (+GMR?)

■Modem Identification (+GMM?)

The PC99 reporting command’s values and parameters are

displayed using the following:

■Current subparameter value (+command?)

■Where command is the command set (e.g., AT+DR?)

■Supported range of values (+command=?)

■Where command is the command set (e.g., AT+DR=?)

The chip set supports the following functionalities of the V.25ter

for a H.324 call:

■The modified function of the ATD command when issued

while the analog voice connection is established. This

command will not cause the DTMF dialing and tone

detection associated with the usual ATD # command.

■The AT commands, subparameters, and values listed in the

following chart.

277662-001.book!!Page!1!!Friday,!January!11,!2002!!5:15!PM

4–2 Lucent/Agere Command Set (Advanced Users Only)

V.25ter AT Command Set

V.25ter AT Commands

Command Subparameter Values Description

AT+A8E=

<v8o>,

<v8a>,

<v8cf>

v8o <1> (default)

Disables the

CI option while in V.8

origination. However,

the modem detects

ANSam and is

capable of starting in

V.34 mode when

initiating the call as a

data call.

<6> Enables DCE

control of V.8 and

CI option.

Defined for two

conditions: as a

parameter to

configure

V.8 originating

and answering

operation while

the DCE is

on-hook, and to

initiate an action

if the DCE is

off-hook.

V.8 negotiation

does not

preclude

simultaneous

implementation of

other negotiation

means such as

V. 8 b i s, V. 1 8 , o r

V.32bis.

v8a <1> (default)

Disables the

CI option while in

V. negotiation.

However, the modem

sends the ANSam

and is capable of

starting in V.34 mode

when answering

acall.

<5> Enables DCE

control of V.8 and

CI option.

277662-001.book!!Page!2!!Friday,!January!11,!2002!!5:15!PM

V.25ter AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 4–3

AT+A8E=

<v8o>,

<v8a>,

<v8cf>

(continued)

v8cf <21h> Call function

for H.324 calls.

<c1h> Call function

for DSVD calls.

AT+A8E? Reports current

values of

sub-parameters.

AT+A8E=? Reports

supported ranges

of values <v8o>,

<v8a>, and

<v8cf>.

+A8I:<v8cf>

<CR>

Used by an

answering DCE if

+A8E,<v8a> !=0,

to indicate

detection of a V.8

CI signal and to

report the

recovered Call

Function octet(s).

Value <v8cf> is a

hexadecimal

code octet that

can take values

as shown above

in +A8E

command.

+A8M=

<hexadecimal

coded CM or

JM octet

string>

Coded CM or

JM octet

Refer to V.8

document for coding.

Directs the DCE

to send a V.8 CM

or JM signal

using the

specified

hexadecimal

coded string.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!3!!Friday,!January!11,!2002!!5:15!PM

4–4 Lucent/Agere Command Set (Advanced Users Only)

V.25ter AT Command Set

+A8A:<type>

<CR>

<type> <1> Indicates

V. 8 A NS am

signal flags.

<0> Indicates no

ANSam signal

detected.

Used by a

calling DCE if

+A8E <v8o> #0

to indicate

detection of an

answering signal.

AT+DR <1> Compression

reporting on.

<0> Compression

reporting off.

Tu r n s

compression

reporting on

or off.

AT+MR <1> Modulation

reporting on.

<0> Modulation

reporting off.

Turns modulation

reporting on

or off.

AT+ER <1> Error control

reporting on.

<0> Error control

reporting off.

Turns error

control reporting

on or off.

AT+A8E? Reports current

values of

sub-parameters.

AT+A8E=? Reports

supported ranges

of values <v8o>,

<v8a>, and

<v8cf>.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!4!!Friday,!January!11,!2002!!5:15!PM

V.25ter AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 4–5

+A8I:<v8cf>

<CR>

Used by an

answering DCE if

+A8E,<v8a> !=0,

to indicate

detection of a V.8

CI signal and to

report the

recovered Call

Function octet(s).

Value <v8cf> is a

hexadecimal

code octet that

can take values

as shown above

in +A8E

command.

+A8M=

<hexadecimal

coded CM or

JM octet

string>

Coded CM or JM

octet

Refer to V.8

document for coding.

Directs the DCE

to send a V.8 CM

or JM signal

using the

specified

hexadecimal

coded string.

+A8A:<type>

<CR>

<type> <1> Indicates

V. 8 A NS am

signal flags.

<0> Indicates no

ANSam signal

detected.

Used by a

calling DCE if

+A8E <v8o> #0 to

indicate detection

of an answering

signal.

AT+DR <1> Compression

reporting on.

<0> Compression

reporting off.

Tu r n s

compression

reporting on

or off.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!5!!Friday,!January!11,!2002!!5:15!PM

4–6 Lucent/Agere Command Set (Advanced Users Only)

V.25ter AT Command Set

AT+MR <1> Modulation

reporting on.

<0> Modulation

reporting off.

Turns modulation

reporting on

or off.

AT+ER <1> Error control

reporting on.

<0> Error control

reporting off.

Turns error

control reporting

on or off.

AT+ILRR <1> DTE rate

reporting on.

<0> DTE rate

reporting off.

Turns DTE rate

reporting on

or off.

AT+ES=

<1,0,1>,

<0,1,0>,

<4,4,6>,

<2,3,5>,

<3,3,5>,

<4,0,6>,

<3,0,2>,

<2,0,2>,

<3,2,4>

<1,0,1> Buffered mode. Determines

the error

correction mode.

<0,1,0> Direct mode.

<4,4,6> MNP or disconnect

mode.

<2,3,5> LAPM or disconnect

mode.

<3,3,5> LAPM or disconnect

mode.

<4,0,6> MNP or

buffered mode.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!6!!Friday,!January!11,!2002!!5:15!PM

V.25ter AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 4–7

AT+ES=

<1,0,1>,

<0,1,0>,

<4,4,6>,

<2,3,5>,

<3,3,5>,

<4,0,6>,

<3,0,2>,

<2,0,2>,

<3,2,4>

(continued)

<3,0,2> LAPM, MNP, or

buffered modem

(default).

<2,0,2> LAPM or

buffered mode.

<3,2,4> LAPM, MNP, or

disconnect mode.

AT+IFC=

<0,0>,

<1,1>,

<3,1>,

<2,2>

<0,0> No flow control. Determines the

local flow control

method.

<1,1> Software flow

control, XON/XOFF

characters

processed by

modem.

<3,1> Software flow

control, XON/XOFF

characters passed

to DTE.

<2,2> Hardware flow

control.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!7!!Friday,!January!11,!2002!!5:15!PM

4–8 Lucent/Agere Command Set (Advanced Users Only)

V.25ter AT Command Set

AT+DS=

<3,0>,

<0,0>,<0>

<3,0> V42bis Determines the

data compression

method.

<0,0> No compression

<0> No compression

Data and General Commands

AT+ MS=

<max_rate>

<max_rx_

rate>

Use this

command to set

the modems

modulation and

its associated

parameters.

Leave blank

any optional

parameter whose

value is not going

to change.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!8!!Friday,!January!11,!2002!!5:15!PM

V.25ter AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 4–9

AT+MS= <carrier>

V92

V90

K56

V34

V32

V32B

V22

V. 2 2 B

V23C

V21

Bell212A

Bell103

Specifies the

preferred modem

carrier to use in

originating or

answering a

connection.

V.92 (default)

V. 9 0

K56flex

V. 3 4

V. 3 2

V.32bis

V. 2 2

V.22bis

V.23, Constant

carrier, ,

asymmetric FDM

V. 2 1

Bell 212A

Bell 103

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!9!!Friday,!January!11,!2002!!5:15!PM

4–10 Lucent/Agere Command Set (Advanced Users Only)

V.25ter AT Command Set

AT+MS= <automode>

Automatic

modulation

negotiation is

enabled or

disabled by

<automode>.

However, if

values are

specified for the

<max rate> and

the <max rx rate>

parameters,

automatic rate

selection will be

disabled and the

modem will

attempt to

connect at the

specified rates.

Disables

Enabled (default)

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!10!!Friday,!January!11,!2002!!5:15!PM

V.25ter AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 4–11

AT+MS= <max_rate>

300 - 33600

The <max rate>

specifies the

highest

connections rate

for the DCE.

Determined by

modulation

selected in

(default).

Value limited by

modulation

selected in

<carrier>.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!11!!Friday,!January!11,!2002!!5:15!PM

4–12 Lucent/Agere Command Set (Advanced Users Only)

V.25ter AT Command Set

V90, V34

V32bis

V32

V22bis

V22

V23C, Bell212A

V.21, Bell103

The Valid

<max_rate> for

each <carrier>

2400

bits/s—33600

bits/s in steps of

2400 bits/s.

4800

bits/s—19200

bits/s in steps of

2400 bits/s.

4800

bits/s—14400

bits/s in steps of

2400 bits/s.

2200 bits/s.

1200 bits/s.

300 bits/s.

AT+MS= <max_rx_rate>

75 - 56000

The <max rx

rate> specifies

the rate limit used

in the receive

direction.

Determined by

modulation

selected in

(default).

Value limited by

modulation

selected in

<carrier>.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!12!!Friday,!January!11,!2002!!5:15!PM

V.25ter AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 4–13

V90

K56

V34

V32bis

V32

V22bis

V22

V23C, Bell212A

V.21, Bell103

The Valid

<max_rx_rate>

for each <carrier>

28000

bits/s—56000

bits/s in steps of

1333 bits/s.

32000

bits/s—56000

bits/s in steps of

2000 bits/s.

2400

bits/s—33600

bits/s in steps of

2400 bits/s.

4800

bits/s—19200

bits/s in steps of

2400 bits/s.

4800

bits/s—14400

bits/s.

240 bits/s.

2200 bits/s.

1200 bits/s.

300 bits/s.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!13!!Friday,!January!11,!2002!!5:15!PM

4–14 Lucent/Agere Command Set (Advanced Users Only)

V.25ter AT Command Set

Extended Syntax Commands

AT+MS Select or

deselect

transmission of

the rate report

result code.

The current

active settings

are reported

under control of

the +MR

parameter.

Optional

subparameters

do not need to be

reported if not

implemented or

set to 0.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!14!!Friday,!January!11,!2002!!5:15!PM

V.25ter AT Command Set

Lucent/Agere Command Set (Advanced Users Only) 4–15

AT+MS AT+ MS=

<min_rate>

<max_rate>

<min_rx_rate>

<max_rx_rate>

Once a

modulation is

selected by the

+MS command,

the auto rate in

both directions

and the auto

mode will be

activated unless

either parameter,

<max rate> or

<max rx rate> is

specified by the

same command.

The settings of

this command

overwrite the

settings of S28,

S37, S38, S109.

Likewise,

changes to these

registers ovewrite

the settings of the

+MS command.

AT+MS ? Display the

current status of

the rate report

result code.

AT+MS =? Display the

supported

parameter values

for DTE-DCE

local rate

reporting.

V.25ter AT Commands

(Continued)

Command Subparameter Values Description

277662-001.book!!Page!15!!Friday,!January!11,!2002!!5:15!PM

Lucent/Agere Command Set 5–1

V.80 AT Command Set

The chip set supports the Synchronous Access Mode and most of

the commands specified in V.80 standards. The commands are

either AT commands issued in the command mode, or in-band

commands transmitted in the data stream. These in-band

commands are delimited by the EM character (hexadecimal 19, or

numerically, 19H). Refer to ITU - V.80 Recommendations for

details of in-band signaling.

V.80 AT Commands

Command Subparameters Values Description

+ES=[<orig_

rqst>[,,

<ans_fbk>]]

Orig_rqstans_fbk <6> Initiate

Synchronous

Access Mode when

the data state is

entered.

<8> Initiate

Synchronous

Access Mode when

connection is

completed and

Data State is

entered.

Controls

operation of the

V.42 protocol in

the DCE.

277662-001.book!!Page!1!!Friday,!January!11,!2002!!5:15!PM

5–2 Lucent/Agere Command Set

V.80 AT Command Set

+ES? Reads syntax

command to

query current

values of the +ES

sub-parameters.

The DCE

transmits this

string of

information text

to the DTE:

+ES:<orig_rqst>,,

<ans_fbk>.

+ES=? Tests syntax

command to

obtain all defined

values of the +ES

sub-parameters.

The DCE

transmits this

string of

information text to

the DTE: +ES:( list

of supported

<orig_rqst>

values),, (list of

supported

<ans_fbk> values).

V.80 AT Commands

(Continued)

Command Subparameters Values Description

277662-001.book!!Page!2!!Friday,!January!11,!2002!!5:15!PM

Lucent/Agere Command Set (Advanced Users Only) A–1

New V.250 Commands to Support

V.92 AT Command Set

No extra space is allowed in the commands. Otherwise, the

modem will return an error response. All the settings of these

commands can overwrite, or be overwritten by, the results of the

related commands in the current modem command set.

The commands support both read and test syntax. The format of

the read syntax is “+XXX?.” This type of command will return the

current settings in use for the command. The format of the test

syntax is “+XXX=?.” This type of command will return a list of the

support values for the command.

+MS Modulation Selection

Added support for a valid carrier value of V.92

Valid Parameter Syntax:

+MS=<carrier>,<automode>,<0>,<max_rate>,<0>,<max_rx_rate>

+MS?

+MS=?

To support V.92, a new valid carrier value has been defined. A list

of the valid <carrier> values which are currently supported are

shown below in Table 1. The current version of code does not

support V.92 upstream. Therefore, no other modifications have

been made to the +MS command. Note that the maximum rate

upstream, <max_rate>, is limited to 31200 for V.90 and V.92.

Please see the Venus AT Command Document for a complete

description of the +MS command.

277662-001.book!!Page!1!!Friday,!January!11,!2002!!5:15!PM

A–2 Lucent/Agere Command Set (Advanced Users Only)

New V.250 Commands to Support V.92 AT Command Set

+DCS Selection of Data Compression

Algorithm

Added support for V.44

Valid Parameter Syntax:

+DCS=[<v42bis>,<v44>]

+DCS=?

+DCS?

This command will select the data compression algorithm.

The parameter <v42bis> specifies whether the V.42 bis algorithm

should be enabled. The parameter <v44> specifies whether the

V.44 algorithm should be enabled.

Valid Carrier Values

Value Description

V92 V.92 (default)

V90 V.90

K56 K56flex

V34 V.34

V32 V.32

V32B V.32bis

V22 V.22

V. 2 2 B V. 2 2 b i s

V23C V.23, constant carrier,

asymmetric FDM

V21 V21

Bell212A Bell 212A

Bell103 Bell 103

277662-001.book!!Page!2!!Friday,!January!11,!2002!!5:15!PM

New V.250 Commands to Support V.92 AT Command Set

Lucent/Agere Command Set (Advanced Users Only) A–3

+DR Data Compression Reporting

Added support for V.44

Valid Parameter Syntax:

+DR=<value>

+DR?

+DR=?

This command will turn on/off the compression report.

Table A–1: Valid <v42bis> Values

Value Description

0 V.42bis must not be used

1 V.42bis acceptable (default)

Table A–2: Valid <v44> Values

Value Description

0 V.44 must not be used

1 V.44 acceptable

2 V.44 only if V92 server (default)

Table A–3: DR=x Data Compression Report Value

Value Description

0 Disables the compression report (default).

1 Enables the compression report.

277662-001.book!!Page!3!!Friday,!January!11,!2002!!5:15!PM

A–4 Lucent/Agere Command Set (Advanced Users Only)

New V.250 Commands to Support V.92 AT Command Set

If the compression report is enabled, the +DR:<type>,intermediate

result code, reports the current DCE-DCE data compression type.

It is issued after the Error Control Report (+ER) and before the

final result code (e.g., CONNECT). The format is shown in Table 5.

+PCW Call Waiting Enable

Added for V.92 support

Valid Parameter Syntax:

+PCW=<call waiting>

+PCW?

+PCW=?

This command will control the action to be taken upon detection

of call waiting in a V.92. The values specified by this command

are not modified when an AT&F command is issued.

Table A–4: DR=x Data Compression Reporting

Intermediate Result Codes

Value Description

+DR: NONE Data compression not in use.

+DR: V42B V.42bis is in use in both directions.

+DR: V44 V.44 is in use in both directions.

Table A–5: Valid <call waiting> Values

Value Description

0 Toggle V.24 Circuit 125 and collect

Caller ID if enabled by +VCID.

1 Hang up.

2 Ignore V.92 call waiting (default).

277662-001.book!!Page!4!!Friday,!January!11,!2002!!5:15!PM

New V.250 Commands to Support V.92 AT Command Set

Lucent/Agere Command Set (Advanced Users Only) A–5

+PMH Modem on Hold Enable

Added for V.92 support

Valid Parameter Syntax:

+PMH=<value>

+PMH?

+PMH=?

This command will control if modem on hold procedures are

enabled during V.92 operation. The values specified by this

command are not modified when an AT&F command is issued.

Table A–6: Valid +PMH=<value> Values

Value Description

0 Enables V.92 modem on hold.

1 Disables V.92 modem on hold (default).

277662-001.book!!Page!5!!Friday,!January!11,!2002!!5:15!PM

A–6 Lucent/Agere Command Set (Advanced Users Only)

New V.250 Commands to Support V.92 AT Command Set

+PMHT Modem on Hold Timer

Added for V.92 support

Valid Parameter Syntax:

+PMHT=<value>

+PMHT?

+PMHT=?

This command will determines if the modem will accept a

Modem on Hold (MOH) request and will set the MOH Timeout.

Table A–7: +PMHT=<value> Values

Value Description

0 Deny MOH Request (default)

1 Grant MOH Request with 10 sec timeout

2 Grant MOH Request with 20 sec timeout

3 Grant MOH Request with 30 sec timeout

4 Grant MOH Request with 40 sec timeout

5 Grant MOH Request with 1 min timeout

6 Grant MOH Request with 2 min timeout

7 Grant MOH Request with 3 min timeout

8 Grant MOH Request with 4 min timeout

9 Grant MOH Request with 6 min timeout

10 Grant MOH Request with 8 min timeout

11 Grant MOH Request with 12 min timeout

12 Grant MOH Request with 16 min timeout

13 Grant MOH Request with indefinite timeout

277662-001.book!!Page!6!!Friday,!January!11,!2002!!5:15!PM

New V.250 Commands to Support V.92 AT Command Set

Lucent/Agere Command Set (Advanced Users Only) A–7

+PMHR Initiate Modem on Hold (MOH)

Added for V.92 support

Valid Parameter Syntax:

+PMHR=<value>

+PMHR?

+PMHR=?

This command will determine if the modem will accept a Modem

on Hold (MOH) request and will set the MOH Timeout. This

command is only valid if MOH is enabled and the modem is

off-hook or in data mode. Otherwise, ERROR will be returned.

Table A–8: +PMHR=<value> Values

Value Description

0 Deny MOH Request (default).

1 Grant MOH Request with 10 sec timeout.

2 Grant MOH Request with 20 sec timeout.

3 Grant MOH Request with 30 sec timeout.

4 Grant MOH Request with 40 sec timeout.

5 Grant MOH Request with 1 min timeout.

6 Grant MOH Request with 2 min timeout.

7 Grant MOH Request with 3 min timeout.

8 Grant MOH Request with 4 min timeout.

9 Grant MOH Request with 6 min timeout.

10 Grant MOH Request with 8 min timeout.

11 Grant MOH Request with 12 min timeout.

12 Grant MOH Request with 16 min timeout.

13 Grant MOH Request with indefinite timeout.

277662-001.book!!Page!7!!Friday,!January!11,!2002!!5:15!PM

A–8 Lucent/Agere Command Set (Advanced Users Only)

New V.250 Commands to Support V.92 AT Command Set

+PIG PCM Upstream Ignore

Added for V.92 support

Valid Parameter Syntax:

+PIG=[<value>]

+PIG?

+PIG=?

This command will control the use of PCM upstream in a V.92.

PCM upstream is supported for Mercury based modems with

12 ns (or faster) RAM.

Table A–9: Valid +PIG=[<value>] Values

Value Description

0 Enable PCM upstream.

1 Disable PCM upstream (default).

277662-001.book!!Page!8!!Friday,!January!11,!2002!!5:15!PM

New V.250 Commands to Support V.92 AT Command Set

Lucent/Agere Command Set (Advanced Users Only) A–9

+PQC V.92 Phase 1 and Phase 2 Control

Added for V.92 support

Valid Parameter Syntax:

+PQC=<value>

+PQC?

+PQC=?

This command will control the enabling or disabling of the V.92

shortened Phase 1 and Phase 2 startup. This command is used in

conjunction with the +PSS command. Changes to the value of

either S109 or +PQC will affect the values of the other AT

command.

Table A–10: Valid +PQC=<value> Values

Value Description

0 Enable Short Phase 1 and Short Phase 2.

1 Enable Short Phase 1.

2 Enable Short Phase 2.

3 Disable Short Phase 1 and

Short Phase 2 (default).

277662-001.book!!Page!9!!Friday,!January!11,!2002!!5:15!PM

A–10 Lucent/Agere Command Set (Advanced Users Only)

New V.250 Commands to Support V.92 AT Command Set

+PMHF V.92 Modem Hook Flash

Added for V.92 support

Valid Parameter Syntax:

+PMHF

This command causes the DCE to go on-hook for a specified

period of time, and then return off-hook for at least a specified

period of time. The specified period of time is normally one-half

second, but may be governed by national regulations. “ERROR” is

returned if MOH is not enabled.

+DS44 V.44 Data Compression

Added for V.44 support

Valid Parameter Syntax:

+DS44=<direction>,<0>,<0>,<max_codewords_tx>,<max_codewords_rx

>,<max_string_tx>,<max_string_rx>,<max_history_tx>,<max_hostory_rx>

+DS44?

+DS44=?

This command will control the V.44 data compression function.

The <direction> parameter specifies the DTE direction of the data

compression.

Table A–11: Valid <direction> Values

Value Meaning

0 No compression.

3 Both directions (default).

277662-001.book!!Page!10!!Friday,!January!11,!2002!!5:15!PM

New V.250 Commands to Support V.92 AT Command Set

Lucent/Agere Command Set (Advanced Users Only) A–11

The <max_codewords_tx> specifies the maximum number of code

words to be negotiated in the transmit direction. The

<max_codewords_rx> specifies the maximum number of code

words to be negotiated in the receive direction. The valid range

for the receive and transmit values is shown in Table 12.

The <max_string_tx> specifies the maximum string length to be

negotiated in the transmit direction. The <max_string_rx> specifies

the maximum string length to be negotiated in the receive

direction. The valid range for both the receive and transmit values

is shown in Table 13.

Table A–12: Valid Range of <max_code_words_tx> and

<max_code_words_rx> Values

Value Meaning

1024 Default.

256-2048 Number of codewords in tx/rx direction.

Table A–13: Valid Range of <max_string_tx> and

<max_string_rx> Values

Value Meaning

255 Default.

31-255 String length in tx/rx direction.

277662-001.book!!Page!11!!Friday,!January!11,!2002!!5:15!PM

A–12 Lucent/Agere Command Set (Advanced Users Only)

New V.250 Commands to Support V.92 AT Command Set

The <max_history_tx> specifies the maximum length of the

history buffer to be negotiated in the transmit direction. The

<max_history_rx> specifies the maximum length of the history

buffer to be negotiated in the receive direction.

Table A–14: Valid Range of <max_string_tx> and

<max_string_rx> Values

Value Meaning

5120 Transmit direction default.

4096 Receive direction default.

512-11008 History buffer size in tx/rx direction.

277662-001.book!!Page!12!!Friday,!January!11,!2002!!5:15!PM

Hp Compaq Presario 3005Us Notebook Pc Modem And Networking Guide Lucent/Agere Command Set (Advanced Users Only)

Modem and Networking: Compaq Notebook Series c01150584

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