Netgear Aircard 875 All Others Reference Guide Supported AT Commands

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UMTS Modems
Supported AT Command Reference

Includes:
AC875 / AC875U
AC880 / AC880E / AC880U
AC881 / AC881U
C885
C888
MC8775 / MC8775V
MC8780 / MC8781
MC8785V
MC8790 / MC8790V
MC8791V
MC8792V

2130617
Rev 2.8.1

Preface

Important Notice

Due to the nature of wireless communications, transmission 
and reception of data can never be guaranteed. Data may be 
delayed, corrupted (i.e., have errors) or be totally lost. 
Although significant delays or losses of data are rare when 
wireless devices such as the Sierra Wireless modem are used in 
a normal manner with a well‐constructed network, the Sierra 
Wireless modem should not be used in situations where failure 
to transmit or receive data could result in damage of any kind 
to the user or any other party, including but not limited to 
personal injury, death, or loss of property. Sierra Wireless 
accepts no responsibility for damages of any kind resulting 
from delays or errors in data transmitted or received using the 
Sierra Wireless modem, or for failure of the Sierra Wireless 
modem to transmit or receive such data.

Safety and Hazards

Do not operate the Sierra Wireless modem in areas where 
blasting is in progress, where explosive atmospheres may be 
present, near medical equipment, near life support equipment, 
or any equipment which may be susceptible to any form of 
radio interference. In such areas, the Sierra Wireless modem 
MUST BE POWERED OFF. The Sierra Wireless modem can 
transmit signals that could interfere with this equipment.
Do not operate the Sierra Wireless modem in any aircraft, 
whether the aircraft is on the ground or in flight. In aircraft, the 
Sierra Wireless modem MUST BE POWERED OFF. When 
operating, the Sierra Wireless modem can transmit signals that 
could interfere with various onboard systems.
Note: Some airlines may permit the use of cellular phones while the
aircraft is on the ground and the door is open. Sierra Wireless
modems may be used at this time.

The driver or operator of any vehicle should not operate the 
Sierra Wireless modem while in control of a vehicle. Doing so 
will detract from the driver or operatorʹs control and operation 
of that vehicle. In some states and provinces, operating such 
communications devices while in control of a vehicle is an 
offence.

Limitation of
Liability

Rev 2.8.1 Feb.11

The information in this manual is subject to change without 
notice and does not represent a commitment on the part of 
Sierra Wireless. SIERRA WIRELESS AND ITS AFFILIATES 
SPECIFICALLY DISCLAIM LIABILITY FOR ANY AND ALL 
DIRECT, INDIRECT, SPECIAL, GENERAL, INCIDENTAL, 
CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES 
INCLUDING, BUT NOT LIMITED TO, LOSS OF PROFITS OR 

3

Supported AT Command Reference

REVENUE OR ANTICIPATED PROFITS OR REVENUE 
ARISING OUT OF THE USE OR INABILITY TO USE ANY 
SIERRA WIRELESS PRODUCT, EVEN IF SIERRA WIRELESS 
AND/OR ITS AFFILIATES HAS BEEN ADVISED OF THE 
POSSIBILITY OF SUCH DAMAGES OR THEY ARE 
FORESEEABLE OR FOR CLAIMS BY ANY THIRD PARTY.
Notwithstanding the foregoing, in no event shall Sierra 
Wireless and/or its affiliates aggregate liability arising under or 
in connection with the Sierra Wireless product, regardless of 
the number of events, occurrences, or claims giving rise to 
liability, be in excess of the price paid by the purchaser for the 
Sierra Wireless product.

Patents

This product may contain technology developed by or for 
Sierra Wireless Inc. This product includes technology licensed 
from QUALCOMM® 3G. This product is manufactured or sold 
by Sierra Wireless Inc. or its affiliates under one or more 
patents licensed from InterDigital Group.

Copyright

©2011 Sierra Wireless. All rights reserved.

Trademarks

AirCard® and “Heart of the Wireless Machine®” are registered 
trademarks of Sierra Wireless. Watcher® is a trademark of 
Sierra Wireless, registered in the European Community.
Sierra Wireless, the Sierra Wireless logo, the red wave design, 
and the red‐tipped antenna are trademarks of Sierra Wireless.
Windows® is a registered trademark of Microsoft Corporation.
QUALCOMM® is a registered trademark of QUALCOMM 
Incorporated. Used under license.
Other trademarks are the property of the respective owners.

Contact
Information

Sales Desk:

Phone: 1-604-232-1488
Hours: 8:00 AM to 5:00 PM Pacific Time
E-mail: sales@sierrawireless.com

Post: Sierra Wireless
13811 Wireless Way
Richmond, BC
Canada
V6V 3A4
Fax: 1-604-231-1109
Web: www.sierrawireless.com

4

2130617

Preface

Consult our website for up‐to‐date product descriptions, 
documentation, application notes, firmware upgrades, trouble‐
shooting tips, and press releases:
www.sierrawireless.com

Revision History
Revision
number
2.3

Release
date
Jul 2007

Changes

•

Fixed !TIME (page 53) syntax

•

Added +ECIO (page 33), !GSMINFO (page 36), !NVPORTSET
(page 39), !SMSSTSEN (page 48) commands

•

Added detail for !SMSRETRY (page 47)

2.4

Jan 2008

•

Updated !TIME (page 53) syntax

2.5

Mar 2008

•

Added band indexes (0C,0D) and clarified query use for !BAND
(page 29)

•

Clarified !NVBACKUP (page 63) options

•

Clarified +ECIO (page 33) and +USET (page 55)

•

Added C885 / C888 / MC8790 / MC8790V to supported modems list

•

Updated minimum firmware revisions

•

Updated ‘supported modems’ lists for several commands

•

Updated !GRELIMEI (page 35)

•

Added !SCPROFDEL (page 44), !SDNOTINSTALLED (page 45),
!SIMNOTINSTALLED (page 46)!

•

Changed ‘Support’ status to ‘Yes’ for supported AT commands described
in Chapter 2: +CMMS, +CPOL, +CPUC, +CTFR, +DS, &F, O, +VTD,
+VTS

•

Added MC8791V and MC8792V to supported modems list

•

Added WCDMA900 content to !BAND (page 29) and
!GSTATUS (page 38)

•

Added +ETFCI

•

Indicated support for +CIEV, +CIND, +CMER

•

Moved !AUTH and !GCIPHER into different chapters

•

Added general and AT command indexes

•

Updated Patents statement

2.6

2.7

2.8

2.8.1

Rev 2.8.1 Feb.11

Jul 2008

Sep 2008

Apr 2009

Feb 2011

5

Supported AT Command Reference

6

2130617

Table of Contents
About this Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Result codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Terminology and acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Current firmware versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Document structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Supported GSM / WCDMA AT Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Modem Status, Customization, and Reset Commands . . . . . . . . . . . . . . . . . .27
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Command summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Command reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Diagnostic Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Command summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Command reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Test commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Command summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Command reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Memory Management Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Command summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Rev 2.8.1 Feb.11

7

Supported AT Command Reference

Command reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
SIM Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Command summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Command reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Index (AT commands) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

8

2130617

1

1: About this Guide
• Introduction
• Result codes
• Terminology and
acronyms
• Current firmware
versions
• Document structure
• Conventions

Introduction
This document describes standard and proprietary AT 
commands that are available for users of UMTS AirCard 
modems, Compass modems, and Mini Card embedded 
modules.
The standard 3GPP AT commands for UMTS devices are 
described in two standards documents available from the 
3GPP (3rd Generation Partnership Project) web site, 
www.3gpp.org:
•

TS 27.007 AT command set for User Equipment (UE)

•

TS 27.005 Use of Data Terminal Equipment ‐‐ Data Circuit 
terminating Equipment (DTE‐DCE) interface for Short Message 
Service (SMS) and Cell Broadcast Service (BSE)

The proprietary AT commands are supplemental to the 
standard AT commands.
For normal operation of the modem, consult the GSM AT 
Command Reference (document number 2130213). You may also 
want to consult the other documents available in the AC8xx/
MC87xx Development Kit or on our Internet site at
www.sierrawireless.com
Note: Some standard 3GPP commands are NOT supported, or are
partially supported. These commands are identified in Supported
GSM / WCDMA AT Commands, page 17.

Note: When designing applications that use these AT commands, use
Watcher® (and other Sierra Wireless applications) as functionality
templates to ensure proper use of command groups. For questions or
concerns relating to command implementation, please contact your
Sierra Wireless account representative.

Rev 2.8.1 Feb.11

9

Supported AT Command Reference

Result codes
Result codes are not shown in the command tables unless 
special conditions apply. Generally the result code OK is 
returned when the command has been executed. ERROR may 
be returned if parameters are out of range, and will be 
returned if the command is not recognized or is not permitted 
in the current state or condition of the modem.

Terminology and acronyms
This document makes use of acronyms that are in common use 
in data communications and cellular technology. Our Internet 
site provides a Glossary of Terms and Acronyms (document 
number 2130891) that may be helpful in understanding some 
acronyms and terminology used in this guide.

Current firmware versions
Versions
Note: Revision codes that
include letters, such as 2.1A, are
to be considered drafts and are
subject to change before final
release.

This document is revised periodically as new 
firmware versions are released. This edition is:

Document

Rev 2.8.1 Feb.11

Each 
command listed in this guide includes a list of supporting 
AC8xx and MC87xx modules. Unless otherwise noted, the 
following minimum firmware revisions are required to 
support the listed commands:

Applicability of commands to different modules

•

AC875 / MC8775 / MC8775V – Revision H1_0_0_0 or 
higher

•

AC880 / MC8780 / MC8781 – Revision D1_0_3_0ap / 
F1_0_0_0ap or higher

•

AC881 / AC881U – Revision F1_0_0_4ap or higher

•

C885 / MC8785V — Revision J1_0_1_0ap or higher

•

C888 / MC8790 / MC8790V — Revision K1_0_1_2ap or 
higher

•

MC8791V / MC8792V — Revision K1_0_2_13ap or higher

To determine your firmware revision:
•

Enter the identification command AT+GMR
The modem responds with version information for 
software, firmware, and hardware.
The details following the revision number include Sierra 
Wireless information on the specific build followed by the 
date and time of the build.
+GMR: … F/W VER: R1_0_0_…

10

2130617

About this Guide

Upgrading
If your modem firmware is an earlier version, you can acquire 
updated firmware by contacting your account manager.

Document structure
This document assumes you have the 3GPP TS 27.007 AT 
command documentation (see page 9). This reference includes 
a chapter covering Supported 27.007 AT commands, as well as 
the proprietary commands listed in the tables below. Each 
table corresponds to one chapter in this guide.
Note: The ‘Supporting modems’ column indicates which modems
support each command — Mini Card (MC), Compass (C), and AirCard
(AC). If an entry is marked with an asterisk (‘*’), a firmware upgrade
may be required. See the detailed command entry for details.

This 
chapter describes commands used to determine modem status, 
adjust customization settings, and reset the modem.

Modem Status, Customization, and Reset Commands

Table 1-1: Modem status and reset commands
Cmnd

Pg

Description

Supporting
modems

!BAND

29

Selects a set of frequency bands / queries current
selection

All

!BCINF

30

Returns the bootloader version

All

!BOOTHOLD

30

Resets modem and waits in bootloader for firmware
download

All

^CARDMODE

30

Returns SIM card mode (card type)

All

+CLVL

31

Sets / returns internal loudspeaker volume

All

+CMUT

31

Enables / disables uplink voice muting

All voiceenabled

!CNTI

31

Returns current, available, and supported network
technologies

Alla

+CQI

32

Returns or enables / disables return of averaged CQI
(Channel Quality Indicator) value (WCDMA only)

All

!CSDONSIO2

32

Configures secondary SIO port for circuit-switched data

All

+ECIO

33

Returns total Energy per chip per power density value
(WCDMA only)

All

Rev 2.8.1 Feb.11

11

Supported AT Command Reference

Table 1-1: Modem status and reset commands (Continued)
Cmnd

12

Pg

Description

Supporting
modems

+ETFCI

33

Enable / disable / query E-TFCI average value

All

!GCIPHER

34

Enables / disables ciphering and integrity settings

All

!GETBAND

34

Returns the current active band

All

!GETRAT

34

Returns the current active radio access technology
(RAT)

All

!GRELIMEI

35

Returns the modem’s production TAC

All

!GRESET

35

Resets the modem

All

!GSMINFO

36

Displays 2G network information

Alla

!GSTATUS

38

Returns operational status

All

!GVER

39

Returns the firmware version

All

^HVER

39

Returns the modem hardware version

All

!NVPORTSET

39

Assigns appropriate USB endpoint AT port

AC880 / 881
MC8780 / 81

!PCTEMP

39

Returns current temperature information

MC (all)
C885
C888

!PCVOLT

40

Returns current power supply voltage information

MC (all)
C885
C888

!POWERDOWN

40

Powers down the system

All

!REL

41

Queries the active protocol / revision

All

!RESET

41

Resets the modem

All

+RSCP

41

Returns Received Signal Code Power (RSCP)
(WCDMA only)

All

!SCACT

42

Activates / deactivates PDP context for FIFO interface

All

!SCDFTPROF

42

Queries / sets the default profile ID

All

!SCDNS

43

Queries / sets profile ID DNS address

All

!SCPADDR

43

Displays IP address for specified PDP context

All

!SCPROF

44

Queries / sets SWI-specific profile information

All

!SCPROFDEL

44

Erase profile information

Alla

!SELMODE

45

Queries / sets current service domain

All

!SELRAT

45

Queries / sets current radio access technology (RAT)

All

2130617

About this Guide

Table 1-1: Modem status and reset commands (Continued)
Cmnd

Pg

Description

Supporting
modems

!SDNOTINSTALLED

45

Returns SD installation status

C885

!SIMNOTINSTALLED

46

Returns SIM installation status

AC885
C885
C888
MC8785V
MC8790 / 90V
MC8791V
MC8792V

!SMSRETRY

47

Queries / sets SMS retry period and interval

AC880 / 881
C885
MC8780 / 81
MC8785V
MC8790 / 90V
MC8791V
MC8792V

!SMSSTSEN

48

Enables / disables SMS status reports

Alla

!SWICALLPROG

49

Enables / disables Call Progress Notification

All

^SYSCONFIG

51

Queries / sets system configuration information

All

^SYSINFO

52

Returns service status information

All

!TIME

53

Queries / sets current time of day

All

!UDINFO

54

Queries / sets current time of day

All

+UPSC

54

Displays Primary Scrambling Code (WCDMA only)

All

+USET

55

Displays WCDMA set information

All

&V

57

Return operating mode AT configuration parameters

All

a. A firmware upgrade may be required, as noted in the detailed listing for this command.

This chapter describes commands 
used to select frequency bands and diagnose problems.

Diagnostic Commands

Table 1-2: Diagnostic commands
Cmnd
!MXSTATS

Pg
60

Description
Displays / clears 27.010 statistics

Supporting
modems
All

This chapter describes commands required 
to place the modem in particular modes of operation, test host 
connectivity, and configure the transmitters and receivers for 
test measurements.

Test commands

Rev 2.8.1 Feb.11

13

Supported AT Command Reference

Table 1-3: Test commands
Cmnd

Pg

Description

Supporting
modems

!ERR

61

Displays diagnostic information

All

!GCCLR

61

Clears crash dump data

All

!GCDUMP

61

Displays the crash dump data

All

Memory Management Commands This chapter describes 
commands that control the data stored in non‐volatile memory 
of the modem.

Table 1-4: Memory management commands
Cmnd
!NVBACKUP

Pg

Description

63

Backs up items stored in non-volatile memory

Supporting
modems
All

This chapter describes commands that 
communicate with an installed (U)SIM.

SIM Commands

Table 1-5: SIM commands
Cmnd

Pg

Description

Supporting
modems

!AUTH

65

!AUTH = 

All

!ICCID

66

Returns (U)SIM card’s ICCID

All

Conventions
The following format conventions are used in this reference:
Character codes or keystrokes that are described with words or 
standard abbreviations are shown within angle brackets using 
a different font, such as  for Carriage Return and  
for a blank space character.
Numeric values are decimal unless prefixed as noted below.
Hexadecimal values are shown with a prefix of 0x, i.e. in the 
form 0x3D.
Binary values are shown with a prefix of 0b, i.e. in the form 
0b00111101.

14

2130617

About this Guide

Command and register syntax is noted using an alternate font: 
!CHAN=[,b]. The “AT” characters are not shown but must be 
included before all commands except as noted in the reference 
tables.
Characters that are required are shown in uppercase; param‐
eters are noted in lowercase.  Required parameters are 
enclosed in angle brackets () while optional parameters are 
enclosed within square brackets ([x]).  The brackets are not to 
be included in the command string.
Commands are presented in table format. Each chapter covers 
the commands related to that subject and presents a summary 
table to help you locate a needed command. Commands are in 
ASCII alphabetical order in the body of each chapter.
Any default settings are noted in the command tables.  Note 
that these are the factory default settings and not the default 
parameter value assumed if no parameter is specified.
This is a numeric or text code that is returned 
after all commands (except resets).  Only one result code is 
returned for a command line regardless of the number of 
individual commands contained on the line.
Result Code

This term indicates a response from the modem 
that is issued prior to a result code.  Reading registers or 
issuing commands that report information will provide a 
response followed by a result code unless the command 
generates an error.
Response

Responses and result codes from the modem, or host system 
software prompts, are shown in this font:
CONNECT 14400

Rev 2.8.1 Feb.11

15

Supported AT Command Reference

16

2130617

2

2: Supported GSM / WCDMA AT
Commands
This chapter identifies the ITU‐T Recommendation V.250, 
3GPP TS 27.005, and 3GPP TS 27.007 AT commands that are 
supported on regular and voice‐enabled Sierra Wireless 
modems (AirCard, Compass, and Mini Card). These 
commands are used to:
•

Control serial communications over an asynchronous 
interface (ITU‐T Recommendation V.250)

•

Control SMS functions for devices on GSM/WCDMA 
networks (3GPP TS 27.005)

•

Control devices operating on GSM/WCDMA networks 
(3GPP TS 27.007)

The ITU‐T specification, Serial Asynchronous Dialling and 
Control (Recommendation V.250), is available on the International 
Telecommunication Union web site, www.itu.int, and the 
3GPP specification documents, 3GPP TS 27.007 V3.13.0 (2003‐
03) and 3GPP TS 27.007 V3.13.0 (2003‐03), are available on the 
3GPP web site, www.3gpp.org.
The tables below identify whether each command is supported 
on AirCard modems, Compass modems, and Mini Card 
embedded modules. An “N/A” in the Supported column of the 
table indicates that the command is related to a feature (such 
as voice) that is not available on the modems.
Some commands are partially supported—the descriptions for 
these commands identify any limitations on command usage. 
Also, some commands are described in more detail in later 
chapters—the descriptions for these commands link to those 
detailed entries (for example, &V in Table 2‐1).
Table 2-1: Supported ITU-T Recommendation V.250 AT commands
Command

Description

Supported

&C

Set Data Carrier Detected (Received line signal detector) function
mode

No

&D

Set Data Terminal Ready function mode

No

&F

Set all current parameters to manufacturer’s defaults

Yes

&S

Set DSR signal

No

&T

Auto tests

No

&V

Return operating mode AT configuration parameters

Yes

Rev 2.8.1 Feb.11

17

Supported AT Command Reference

Table 2-1: Supported ITU-T Recommendation V.250 AT commands (Continued)
Command

18

Description

Supported

&W

Store current parameter to user-defined profile

No

+DR

V42bis data compression report

Yes

+DS

V42bis data compression

Yes

+GCAP

Request complete TA capabilities list

Yes

+GMI

Request manufacturer identification

Yes

+GMM

Request TA model identification

Yes

+GMR

Request TA revision identification

Yes

+GOI

Request global object identification

No

+GSN

Request TA serial number identification

Yes

+ICF

Set TE-TA control character framing

Yes

+IFC

Set TE-TA local data flow control

Yes

+ILRR

Set TE-TA local rate reporting mode

No

+IPR

Set fixed local rate

Yes

A

Answer incoming call

Yes

A/

Re-issues last AT command given

No

D

Dial

Yes

D>

Originate call to phone number in memory 

No

D>

Originate call to phone number in current memory

Yes

D>

Originate call to phone number in memory which corresponds to
alphanumeric field 

No

DL

Redial last telephone number used

No

E

Set command echo mode

Yes

H

Disconnect existing connections

Yes

I

Display product identification information

Yes

L

Set monitor speaker loudness

No

M

Set monitor speaker mode

No

O

Switch from command mode to data mode

Yes

P

Select pulse dialing

No

Q

Set Result code presentation mode

No

S0

Set number of rings before automatically answering the call

Yes

2130617

Supported GSM / WCDMA AT Commands

Table 2-1: Supported ITU-T Recommendation V.250 AT commands (Continued)
Command

Description

Supported

S10

Set disconnect delay after indicating the absence of data carrier

Yes

S3

Set command line termination character

Yes

S4

Set response formatting character

Yes

S5

Set command line editing character

Yes

S6

Set pause before blind dialing

Yes

S7

Set number of seconds to wait for connection completion

Yes

S8

Set number of seconds to wait when comma dial modifier used

Yes

T

Select tone dialing

Yes

V

Set result code format mode

Yes

X

Set connect result code format and call monitoring

Yes

Z

Set all current parameters to user-defined profile

Yes

Table 2-2: Supported 27.005 AT commands
Command

Description

Supported

+CBM

Cell broadcast message directly displayed

Yes

+CBMI

Cell broadcast message stored in memory at specified 
location

No

+CDS

SMS status report after sending a SMS

Yes

+CDSI

Incoming SMS status report

Yes

+CMGC

Send command

Yes

+CMGD

Delete message

Yes

+CMGF

Message format

Yes

+CMGL

List messages

Yes

+CMGR

Read message

Yes

+CMGS

Send message

Yes

+CMGW

Write message to memory

Yes

+CMMS

More messages to send

Yes

+CMNA

New message acknowledgement to ME/TA

Yes

+CMS ERROR:


SMS error (mobile or network error)

Yes

+CMSS

Send message from storage

Yes

Rev 2.8.1 Feb.11

19

Supported AT Command Reference

Table 2-2: Supported 27.005 AT commands (Continued)
Command

Description

Supported

+CMT

Incoming message directly displayed

Yes

+CMTI

Incoming message stored in  (“SM” - (U)SIM message
storage) at location 

Yes

+CNMA

New message acknowledgement to mobile equipment

Yes

+CNMI

New message indications to TE

Yes

+CPMS

Preferred message storage

Yes

+CRES

Restore settings

No

+CSAS

Save settings

No

+CSCA

Service centre address

Yes

+CSCB

Select cell broadcast message types

Yes

+CSDH

Show text mode parameters

Yes

+CSMP

Set text mode parameters

Yes

+CSMS

Select message service

Yes

Table 2-3: Supported 27.007 AT commands
Command
C

Description
ITU T V.24 circuit 109 carrier detect signal behavior command

Support
Partial

Format
• C
Limitations
• Default  = 2
•  = 2 causes the AT/Data carrier detect pin to ‘wink’
(briefly switch off and on) when data calls end.
•  = 0 or 1 performs as defined in the standard

20

+CACM

Accumulated call meter

No

+CACSP

Voice Group or Voice Broadcast Call State Attribute Presentation

N/A

+CAEMLPP

eMLPP Priority Registration and Interrogation

No

+CAHLD

Leave an ongoing Voice Group or Voice Broadcast Call

N/A

+CAJOIN

Accept an incoming Voice Group or Voice Broadcast Call

N/A

+CALA

Alarm

N/A

+CALCC

List current Voice Group and Voice Broadcast Calls

N/A

+CALD

Delete alarm

N/A

2130617

Supported GSM / WCDMA AT Commands

Table 2-3: Supported 27.007 AT commands (Continued)
Command

Description

Support

+CALM

Alert sound mode

No

+CAMM

Accumulated call meter maximum

No

+CANCHEV

NCH Support Indication

No

+CAOC

Advice of Charge

No

+CAPD

Postpone or dismiss an alarm

N/A

+CAPTT

Talker Access for Voice Group Call

N/A

+CAREJ

Reject an incoming Voice Group or Voice Broadcast Call

N/A

+CAULEV

Voice Group Call Uplink Status Presentation

N/A

+CBC

Battery charge

Yes

+CBST

Select bearer service type

Yes

+CCCM

Current call meter value

No

+CCFC

Call forwarding number and conditions

Yes

+CCLK

Clock

N/A

+CCUG

Closed user group

Yes

+CCWA

Call waiting

Yes

+CCWE

Call Meter maximum event

No

+CDIP

Called line identification presentation

No

+CDIS

Display control

No

+CEER

Extended error report

No

+CFUN

Set phone functionality

Partial

Format
• +CFUN = [  [, ] ]
Limitations
• Valid  values:
· 0 (minimum functionality, low power draw)
· 1 (full functionality, high power draw)
+CGACT

PDP context activate or deactivate

Yes

+CGANS

Manual response to a network request for PDP context activation

No

+CGATT

PS attach or detach

Yes

+CGAUTO

Automatic response to a network request for PDP context
activation

No

Rev 2.8.1 Feb.11

21

Supported AT Command Reference

Table 2-3: Supported 27.007 AT commands (Continued)
Command

22

Description

Support

+CGCLASS

GPRS mobile station class

Yes

+CGCLOSP

Configure local octet stream PAD parameters

No

+CGCMOD

PDP Context Modify

No

+CGDATA

Enter data state

Yes

+CGDCONT

Define PDP Context

Yes

+CGDSCONT

Define Secondary PDP Context

Yes

+CGEQMIN

3G Quality of Service Profile (Minimum acceptable)

Yes

+CGEQNEG

3G Quality of Service Profile (Negotiated)

Yes

+CGEQREQ

3G Quality of Service Profile (Requested)

Yes

+CGEREP

Packet Domain event reporting

Yes

+CGEV

GPRS network event indication

Yes

+CGMI

Request manufacturer identification

Yes

+CGMM

Request model identification

Yes

+CGMR

Request revision identification

Yes

+CGPADDR

Show PDP address

Yes

+CGQMIN

Quality of Service Profile (Minimum acceptable)

Yes

+CGQREQ

Quality of Service Profile (Requested)

Yes

+CGREG

GPRS network registration status

Yes

+CGSMS

Select service for MO SMS messages

Yes

+CGSN

Request product serial number identification

Yes

+CGTFT

Traffic Flow Template

Yes

+CHLD

Call related supplementary services

Yes

+CHSA

HSCSD non-transparent asymmetry configuration

N/A

+CHSC

HSCSD current call parameters

N/A

+CHSD

HSCSD device parameters

N/A

+CHSR

HSCSD parameters report

N/A

+CHST

HSCSD transparent call configuration

N/A

+CHSU

HSCSD automatic user initiated upgrading

N/A

+CHUP

Hangup call

Yes

2130617

Supported GSM / WCDMA AT Commands

Table 2-3: Supported 27.007 AT commands (Continued)
Command

Description

Support

+CIEV

Indicator event

Yes

+CIMI

Request international mobile subscriber identity

Yes

+CIND

Indicator control

Yes

+CKEV

Key press or release event

No

+CKPD

Keypad control

No

+CLAC

List all available AT commands

No

+CLAE

Language Event

No

+CLAN

Set Language

No

+CLCC

List current calls

Yes (MC8790V /
MC8791V /
MC8792V)
Partial (other
voice-enabled
modules)

+CLCK

Facility lock

Yes

+CLIP

Calling line identification presentation

Yes

+CLIR

Calling line identification restriction

Yes

+CLVL

Sets / returns internal loudspeaker volume

Yes

+CMAR

Master Reset

No

+CME ERROR:


Mobile Termination error result code

Yes

+CMEC

Mobile Termination control mode

No

+CMEE

Report Mobile Termination error

Yes

+CMER

Mobile Termination event reporting

Yes

+CMOD

Call mode

Yes

+CMUT

Enables / disables uplink voice muting

Yes

+CMUX

Multiplexing mode

Yes

+CNUM

Subscriber number

Yes

+COLP

Connected line identification presentation

Yes

+COPN

Read operator names

Yes

+COPS

Operator selection

Yes

+CPAS

Phone activity status

Yes

Rev 2.8.1 Feb.11

23

Supported AT Command Reference

Table 2-3: Supported 27.007 AT commands (Continued)
Command

24

Description

Support

+CPBF

Find phonebook entries

Yes

+CPBR

Read phonebook entries

Yes

+CPBS

Select phonebook memory storage

Yes

+CPBW

Write phonebook entry

Yes

+CPIN

Enter PIN

Yes

+CPOL

Preferred operator list

Yes

+CPROT

Enter protocol mode

No

+CPUC

Price per unit and currency table

Yes

+CPWC

Power class

No

+CPWD

Change password

Yes

+CR

Service reporting control

Yes

+CRC

Cellular result codes

Yes

+CREG

Network registration

Yes

+CRING

Incoming call type

Yes

+CRLP

Radio link protocol

Yes

+CRMP

Ring Melody Playback

N/A

+CRSL

Ringer sound level

N/A

+CRSM

Restricted SIM access

Yes

+CSCC

Secure control command

No

+CSCS

Select TE character set

Yes

+CSDF

Settings date format

N/A

+CSGT

Set Greeting Text

N/A

+CSIL

Silence Command

N/A

+CSIM

Generic SIM access

Yes

+CSNS

Single numbering scheme

No

+CSQ

Signal quality

Yes

+CSSN

Supplementary service notifications

Yes

+CSTA

Select type of address

Yes

+CSTF

Settings time format

Yes

2130617

Supported GSM / WCDMA AT Commands

Table 2-3: Supported 27.007 AT commands (Continued)
Command

Description

Support

+CSVM

Set Voice Mail Number

No

+CTFR

Call deflection

Yes

+CTZR

Time Zone Reporting

N/A

+CTZU

Automatic Time Zone Update

No

+CUSD

Unstructured supplementary service data

Yes

+CV120

V.120 rate adaption protocol

No

+CVHU

Voice Hangup Control

No

+CVIB

Vibrator mode

N/A

D

ITU T V.25ter [14] dial command

Yes

D*99#

Sets up a packet data call (PDP context) based on profile ID #1

Yes

D*99***#

Sets up a packet data call (PDP context) based on profile ID #
( is the  in the +CGDCONT command)

Yes

+VTD

Tone duration

Yes

+VTS

DTMF and arbitrary tone generation

Yes

+WS46

PCCA STD 101 [17] select wireless network

No

Rev 2.8.1 Feb.11

25

Supported AT Command Reference

26

2130617

3

3: Modem Status, Customization,
and Reset Commands
• Introduction
• Command summary
• Command reference

Introduction
This chapter describes commands used to reset the modem, 
adjust customization settings, retrieve the firmware version, 
and monitor the temperature, voltage, and modem status.

Command summary
The table below lists the commands described in this chapter.
Table 3-1: Modem status commands
Command

Description

Page

!BAND

Selects a set of frequency bands / queries current selection

29

!BCINF

Returns the bootloader version

30

!BOOTHOLD

Resets modem and waits in bootloader for firmware download

30

^CARDMODE

Returns SIM card mode (card type)

30

+CLVL

Sets / returns internal loudspeaker volume

31

+CMUT

Enables / disables uplink voice muting

31

!CNTI

Returns current, available, and supported network technologies 31

+CQI

Returns or enables / disables return of averaged CQI (Channel
Quality Indicator) value (WCDMA only)

32

+CSDONSIO2

Configures secondary SIO port for circuit-switched data

32

+ECIO

Returns total Energy per chip per power density value
(WCDMA only)

33

+ETFCI

Enable / disable / query E-TFCI average value

33

!GCIPHER

Returns operational status

38

!GETBAND

Returns the current active band

34

!GETRAT

Returns the current active radio access technology (RAT)

34

!GRELIMEI

Returns the modem’s production TAC

35

!GRESET

Resets the modem

35

!GSMINFO

Displays 2G network information

36

!GSTATUS

Returns operational status

38

Rev 2.8.1 Feb.11

27

Supported AT Command Reference

Table 3-1: Modem status commands (Continued)
Command

28

Description

Page

!GVER

Returns the firmware version

39

^HVER

Returns the modem hardware version

39

!NVPORTSET

Assigns appropriate USB endpoint AT port

39

!PCTEMP

Returns current temperature information

39

!PCVOLT

Returns current power supply voltage information

40

!POWERDOWN

Powers down the system

40

!REL

Queries the active protocol / revision

41

!RESET

Resets the modem

41

+RSCP

Returns Received Signal Code Power (RSCP) (WCDMA only)

41

!SCACT

Activates / deactivates PDP context for FIFO interface

42

!SCDFTPROF

Queries / sets the default profile ID

42

!SCDNS

Queries / sets profile ID DNS address

43

!SCPADDR

Displays IP address for specified PDP context

43

!SCPROF

Queries / sets SWI-specific profile information

44

!SCPROFDEL

Erase profile information

44

!SDNOTINSTALLED

Returns SD installation status

45

!SELMODE

Queries / sets current service domain

45

!SELRAT

Queries / sets current radio access technology (RAT)

45

!SIMNOTINSTALLED

Returns SIM installation status

46

!SMSRETRY

Queries / sets SMS retry period and interval

47

!SMSSTSEN

Enables / disables SMS status reports

48

!SWICALLPROG

Enables / disables Call Progress Notification

49

^SYSCONFIG

Queries / sets system configuration information

51

^SYSINFO

Returns service status information

52

!TIME

Queries / sets current time of day

53

!UDINFO

Returns information from active USB descriptor

54

+UPSC

Displays Primary Scrambling Code (WCDMA only)

54

+USET

Displays WCDMA set information

55

&V

Return operating mode AT configuration parameters

57

2130617

Modem Status, Customization, and Reset Commands

Command reference
Table 3-2: Modem status, customization, and reset commands
Command

Description

!BAND=

Selects a set of frequency bands / queries current selection

!BAND=?

This command is used to configure the modem to operate on a set of
frequency bands, look up the sets available, and query the current selection.

!BAND?

Usage:
• AT!BAND=? reports allowed values for  and the corresponding frequency bands.
• AT!BAND= is used to select a set of bands.
• AT!BAND? reports the current band selection.

Supporting modems:
• All

Parameters:
 (band index value — When configured for ‘all regions’, all of the
bands supported by the modem will appear):
• 00 = All bands
• 01 = WCDMA 2100
• 02 = WCDMA 850/1900
• 03 = GSM 900/1800
• 04 = GSM 850/1900
• 05 = GSM ALL
• 06 = WCDMA 2100 GSM 900/1800
• 07 = WCDMA 850/1900 GSM 850/1900
• 08 = WCDMA ALL
• 09 = WCDMA 850/2100
• 0A = WCDMA 800/2100
• 0B = WCDMA 850/2100 GSM 900/1800
• 0C = WCDMA 850 GSM 900/1800
• 0D = WCDMA 850
• 0E = WCDMA 900
• 0F = WCDMA 900 / 2100
Example:
When configured for a specific region, AT!BAND=? could return:

Note: These band sets are
preconfigured by your device’s
manufacturer. The bands
displayed by the query
command (AT!BAND=?)
depend on this configuration,
as shown in this example.

Rev 2.8.1 Feb.11

00, All bands
01, WCDMA 2100
02, N/A (Defaults to All)
03, GSM 900/1800
04, N/A (Defaults to ALL)
05, GSM ALL
06, N/A (Defaults to ALL)
07, N/A (Defaults to ALL)
08, WCDMA ALL
09, N/A (Defaults to ALL)
0A, N/A (Defaults to ALL)
0B, N/A (Defaults to ALL)
0C, N/A (Defaults to ALL)
0D, N/A (Defaults to ALL)
0D, N/A (Defaults to ALL)
0E, N/A (Defaults to ALL)

29

Supported AT Command Reference

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

!BCINF

Returns the bootloader version

Supporting modems:
• All

This command is used to return the module’s bootloader version.
Usage:
• AT!BCINF returns several values—the bootloader version is the second
parameter returned.
Example:
AT!BCINF returns:
BOOT
Address: <...>
Version: 
...
Parameters:
 (bootloader version):
• ASCII string
• Maximum length: 84 characters
• Example: H1_0_0_0ACBT G:/WS/FW/H1_0_0_0ACBT/MSM6280/SRC
2006/09/01 16:33:30

!BOOTHOLD
Supporting modems:
• All

Resets modem and waits in bootloader for firmware
download
This command is used to prepare for a firmware download by resetting the
modem and waiting in ‘boot and hold’ mode.
Usage:
• AT!BOOTHOLD forces the modem to backup user NV options, reset, and
then wait in boot and hold mode for a firmware download.

^CARDMODE

Returns SIM card mode (card type)

Supporting modems:
• All

This command is used to identify the type of SIM card being used.
Returned parameters:
 (the type of sim card)
• 0 = unknown
• 1 = SIM
• 2 = USIM

30

2130617

Modem Status, Customization, and Reset Commands

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

+CLVL=

Sets / returns internal loudspeaker volume

+CLVL=?

This command is used to set or report the modem’s internal loudspeaker
volume.

+CLVL?

Usage:
• AT+CLVL= sets the volume within a specified range
• AT+CLVL=? reports allowed values for 
• AT+CLVL? reports the current volume

Supporting modems:
• All

Parameters:
 (Sound level):
• Manufacturer-specific volume levels
• Valid range: 0(lowest)–7(highest)

+CMUT=

Enables / disables uplink voice muting

+CMUT=?

This command is used to enable or disable uplink voice muting during a voice
call.

Supporting modems:
• All voice-enabled modems

Usage:
• AT+CMUT= turns muting on or off
• AT+CMUT=? returns valid  values
Parameters:
 (Enable / disable muting):
• 0 = Mute off
• 1 = Mute on

*CNTI=
Supporting modems:
• All, with following exceptions:
· AC875 / 875U (min.
FW: H1_1_4_1)

Returns current, available, and supported network
technologies
This command is used to report the network technology currently being used,
the technologies available for use, or the technologies supported by the
modem.
Usage:
• AT*CNTI= returns
*CNTI: ,[,[...]]
Parameters:
 (reporting option):
• 0 = Network technology currently in use
• 1 = Available technologies on current network
• 2 = All technologies supported by the modem
 (technology type):
• ASCII string
• Valid values: “GSM”, “GPRS”, “EDGE”, “UMTS”, “HSDPA”, “HSUPA”
(only when  = 1)

Rev 2.8.1 Feb.11

31

Supported AT Command Reference

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

+CQI?
+CQI=
Supporting modems:
• All

Description

Returns or enables / disables return of averaged CQI
(Channel Quality Indicator) value (WCDMA only)
This command returns the averaged CQI from the modem.
Usage:
• AT!CQI? returns the average CQI and the number of samples used to
determine the average. For example:
+CQI:
total valid samples 1600, average cqi 26
• AT!CQI= enables or disables the query version of the
command (+CQI?)
Parameters:
 (enable / disable CQI value retrieval):
• 0 = Disable retrieval
• 1 = Enable retrieval

CSDONSIO2?

Configures secondary SIO port for circuit-switched data

!CSDONSIO2=

This command configures the secondary serial I/O (SIO) port for circuitswitched data over the main AT port or MUX1 / MUX2 / MUX3.

Supporting modems:
• All

Note: The modem must be reset before any change takes effect.
Usage:
• AT!CSDONSIO2? returns the current port number currently used for the
SIO port. For example:
+CSDONSIO2:

• AT!CSDONSIO2= sets the port number to use for the SIO port.
Parameters:
 (Port used for circuit-switched data):
• 0 = CSD on main AT port (Default)
• 1 = CSD on MUX1
• 2 = CSD on MUX2
• 3 = CSD on MUX3

32

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Modem Status, Customization, and Reset Commands

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

+ECIO?
Supporting modems:
• All

Description

Returns total Energy per chip per power density value
(WCDMA only)
This command returns the total energy per chip per power density (Ec/Io)
value of the active set’s three strongest cells.
Usage:
• AT+ECIO? returns the signed dB values of the three strongest cells in the
active set. The values are listed from strongest to weakest, based on
RSCP, and separated by tabs. If there are less than three cells, only
those values appear. For example:
+ECIO:
Ec/Io: -3.5 dB -14.0 dB -24.5 dB
---or---
+ECIO:
Ec/Io: -7.5 dB
• Valid range = -31.5 dB to 0 dB
• The command +USET also displays Tot Ec/Io as one of its outputs.

+ETFCI?

Enable / disable / query E-TFCI average value

+ETFCI=

This command enables/disables checking of average E-TFCI values during
an HSUPA call.

Supporting modems:
• MC879x(V) (min.
FW: K1_1_1_1ap)

The average value is based on 64 sets of log values extracted from the
E-DPCCH packet:
• every 200 ms (for 10 ms TTI) — each set includes 20 samples. A total of
1280 samples are taken (200 ms/set, 20 samples per set, 64 sets over
12.8 second period).
• every 80 ms (for 2 ms TTI) — each set includes 40 samples. A total of
2560 samples are taken (80 ms/set, 40 samples per set, 64 sets over
5.12 second period).
Note: An HSUPA call must be in progress to obtain the E-TFCI.
Usage:
• AT+ETFCI? indicates if E-TFCI checking is enabled, and reports the total
number of samples and average E-TFCI value. For example:
+ETFCI:
Status: 
total samples 1280, average etfci 
• AT+ETFCI= enables or disables the ability to check the average
E-TFCI value.
Parameters:
 (E-TFCI reporting status):
• 0 — Disabled
• 1 — Enabled
 (Average E-TFCI value over sampling period):
• Valid range = 0–127

Rev 2.8.1 Feb.11

33

Supported AT Command Reference

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

!GCIPHER = 

Enables / disables ciphering and integrity settings

!GCIPHER?

To register onto a network with WCDMA service, the modem’s ciphering and
integrity settings must be enabled or disabled to match the network settings.
Most carriers enable both ciphering and integrity.

Supporting modems:
• All

When testing the modem, you may be using a SIM that has different codes
for ciphering and integrity than those used by the test system. In this case,
you may need to disable ciphering and integrity checking to use the test
system.
Usage:
• AT!GCIPHER= sets the ciphering and integrity settings.
• AT!GCIPHER? reports the current ciphering and integrity settings
(0=disabled, 1=enabled).
Parameters:
 (enable / disable ciphering and integrity):
• 0 = ciphering disabled; integrity disabled
• 1 = ciphering enabled; integrity disabled
• 2 = ciphering enabled; integrity enabled
• 3 = ciphering disabled; integrity enabled

!GETBAND?

Returns the current active band

Supporting modems:
• All

This command returns the active band currently being used by the modem.
Usage:
• AT!GETBAND? returns a description of the current active band, or returns
an error message.
Note: Due to stack implementation requirements, !GETBAND reports W800
for both W800 and W850.

34

!GETRAT?

Returns the current active radio access technology (RAT)

Supporting modems:
• All

This command returns the RAT currently being used by the modem.
Usage:
• AT!GETRAT? returns a description of the current RAT, or returns an error
message.

2130617

Modem Status, Customization, and Reset Commands

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

!GRELIMEI?

Returns the modem’s production TAC

Supporting modems:
• All

This command returns the modem’s production TAC (Type Allocation Code).
(TAC is first 8 chars, then padded with Zeros). EG: if IMEI is
289258158732085, returns 289258150000000.
Usage:
• AT!GRELIMEI? returns the  assigned to the modem.
Parameters:

• 15-character string. First 8 characters are the TAC, remainder of string is
zero-padded.
Example:
If the modem’s IMEI is 289258158732085, !GRELIMEI returns
289258150000000.

!GRESET

Resets the modem

Supporting modems:
• All

This command performs a modem reset.
Note: This command is identical in function to !RESET.

Rev 2.8.1 Feb.11

35

Supported AT Command Reference

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

!GSMINFO?

Displays 2G network information

Supporting modems:
• All, with following exceptions:
· MC8775 (min.
FW: H1_1_8_13mcap)
· AC875 (min.
FW: H1_1_8_13acap)

This command returns 2G network information for the ‘serving’ cell and up to
6 ‘neighbor’ cells.
Parameters: (referenced in example below)
: Mobile Country Code and Mobile Network Code (combine to
form the PLMN)
• 16-bit decimal
: Location Area Code
• 16-bit decimal
: Cell ID
• 16-bit decimal
: Base Station Identity Code
• 8-bit decimal
: Network Color Code
• 8-bit decimal
: Base Station Color Code
• 8-bit decimal
: Routing Area Code
• 8-bit decimal
: Minimum Rx level (dBm) needed to register
• 16-bit decimal
: Reserved for future use
• 16-bit decimal
: Indicates the 2G network band
• Valid values: “E900”, “P900”, “1900”, “1800”, “850”, “Unknown”
: Absolute Radio Frequency Channel Number
• 16-bit decimal
: Received BCCH frequency level (dBm)
• 16-bit decimal
: C1 cell selection criteria
• 16-bit decimal
: C2 cell selection criteria
• 16-bit decimal
: C31 cell selection criteria
• 16-bit decimal
: C32 cell selection criteria
• 16-bit decimalf
(Continued on next page)

36

2130617

Modem Status, Customization, and Reset Commands

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

!GSMINFO
(Continued)

Description

Displays 2G network information
Example
AT!GSMINFO?
returns:

Rev 2.8.1 Feb.11

!gsminfo:
Serving Cell:
PLMN:
LAC:
Cell ID:
BSIC:
NCC:
BSCC:
RAC:
Min Rx Lvl Rqd:
Max Rach:
Band:
ARFCN:
RX level (dBm):
C1:
C2:
C31:
C32:



Neighbour Cells:
Band:
ARFCN:
RAC:
RX level (dBm):
C1:
C2:
C31:
C32:





















37

Supported AT Command Reference

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

!GSTATUS?

Returns operational status

Supporting modems:
• All

This command returns specific details about the current operational status of
the modem.
Parameters:
: Current time (Seconds from bootup)
: Approximate temperature (5C)
: Bootup Time (Seconds from reset)
: Current modem mode
• (“POWERING OFF”, “FACTORY TEST”, “OFFLINE”, “ONLINE”,
“LOW POWER MODE”, “RESETTING”, “NETWORK TEST”, “OFFLINE
REQUEST”, “PSEUDO ONLINE”, “Unknown”)
: System mode acquired by modem
• (“No service”, “AMPS”, “CDMA”, “GSM”, “HDR”, “WCDMA”, “GPS”,
“WCDMA+GSM”, “Unknown”)
: Current PS state
• (“Attached”, “Not attached”)
: Current WCDMA band being accessed
• (“CDMA cell”, “CDMA PCS”, “IMT2000”, “WCDMA1900”,
“WCDMA1800”, “WCDMA800”, “GSM EGSM900”, “GSM DCS1800”,
“GSM 850”, “GSM1900”, “GPS”, “No band”, “WCDMA900”)
: Current GSM band, either TCH or BCCH
• (“GSM850”, “GSM900”, “DCS1800”, “PCS1900”, “Unknown”)
: WCDMA channel number
: GSM channel number
: Current GMM state
• (“IDLE”, “DEREGISTERED”, “Registering”, “REGISTERED”,
“Deregistering”, “RA updating”, “Requesting srvc”)
: Current GMM sub-state
• (“NORMAL SERVICE”, “LIMITED SERVICE”, “ATT NEEDED”,
“ATTEMPTING ATT”, “NO IMSI”, “NO SERVICE”, “PLMN SEARCH”,
“SUSPENDED”, “UPDATE NEEDED”, “UPDATING”, “DEATACHING”,
“---”)
Note: “---” indicates ‘undefined sub-state’
: Current MM state
• (“NULL”, “IDLE”, “LA Rejected”, “LA Start”, “CONNECTED”,
Network Command”, “---”)
Note: “---” indicates ‘undefined state’
: Current MM sub-state
• (“NORMAL SERVICE”, “LIMITED SERVICE”, “NO IMSI”,
“NO SERVICE”, “PLMN SEARCH”, “UPDATE NEEDED”,
“UPDATING”, “---”)
Note: “---” indicates ‘undefined sub-state’

38

2130617

Modem Status, Customization, and Reset Commands

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

!GVER?
Supporting modems:
• All

^HVER
Supporting modems:
• All

Description

Returns the firmware version
This command returns the firmware version as a string in the format
version yyyy/mm/dd hh:mm:ss.

Returns the modem hardware version
This command returns the modem’s hardware version number based on the
FSN.
The version number is returned as a short string representing the actual
version.
Examples:
• “E2” – Eng2 device
• “1.0” – Production v1.0
• “1.1” – Production v1.1
• etc.

!NVPORTSET?

Assigns appropriate USB endpoint AT port

!NVPORTSET=


This command maps the AT port to either endpoint 5 or endpoint 2 in nonMUX mode, or reports the current mapping.

Supporting modems:
• MC8780 / 81
• AC880 / 881

Usage:
• AT!NVPORTSET? returns the current endpoint 
• AT!NVPORTSET= maps the AT port to the appropriate USB
endpoint
Parameters:
 (mapping type):
• 0 = endpoint 5 (Default value)
• 1 = endpoint 2

!PCTEMP?

Returns current temperature information

Supporting modems:
• All MC modems
• C885
• C888

This command returns the module’s temperature state and actual
temperature.
Usage:
• AT!PCTEMP? returns the  and .
Parameters:
 (temperature state):
• “Normal”
• “High Warning”
• “High Critical”
• “Low Critical”
 (current temperature):
• Current temperature in degrees Celsius – this is the highest temperature
reported by the two thermistors (one measures the PA (Power Amplifier)
used by the WCDMA transceiver, the other measures the temperature of
the PA used by the GSM transceiver).

Rev 2.8.1 Feb.11

39

Supported AT Command Reference

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

!PCVOLT?

Returns current power supply voltage information

Supporting modems:
• All MC modems
• C885
• C888

This command returns the module’s power supply state and actual voltage.
Usage:
• AT!PCVOLT? returns the , , and  (Analog/Digital
Convertor reading).
Parameters:
 (power supply state):
• “Normal”
• “High Critical”
• “Low Warning”
• “Low Critical”
:
• Current voltage reading in mV.
:
• Analog/Digital Convertor reading

!POWERDOWN

Powers down the system

Supporting modems:
• All

This command powers down the system. After using this command, the
modem will not communicate with the host until it has been power cycled.
Usage:
• AT!POWERDOWN returns “OK” and powers the system down.
Note: This command should only be used when testing using an appropriate
testing jig—do not use it when the modem is installed in a computer.

40

2130617

Modem Status, Customization, and Reset Commands

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

!REL?

Queries the active protocol / revision

Supporting modems:
• All

This command is used to indicate the modem’s current protocol, SGSN, and
MSC revision settings.
Usage:
• AT!REL? reports the current operating protocol, SGSN revision, and MSC
revision in the format    (each value appears
on a separate line).
Parameters:
: WCDMA RRC Revision (Protocol)
• 00 = Release 99
• 01 = Release 5 (Default)
: SGSN Revision
• 00 = Release 97
• 01 = Release 99
• 02 = Release 5
• 03 = Dynamic (Default)—uses whichever protocol is broadcast by the
network
: MSC Revision
• 00 = Release 97
• 01 = Release 99
• 02 = Release 5
• 03 = Dynamic (Default)—uses whichever protocol is broadcast by the
network

!RESET

Resets the modem

Supporting modems:
• All

This command performs a modem reset.
Note: This command is identical in function to !GRESET.

+RSCP?
Supporting modems:
• All

Returns Received Signal Code Power (RSCP) (WCDMA
only)
This command returns the RSCP of the active set’s three strongest cells.
Usage:
• AT!RSCP? returns the signed dBm value, from weakest to strongest cell.
For example:
+RSCP:
RSCP: -73 dBm -84 dBm
• Valid return values: -120 dBm to -20 dBm

Rev 2.8.1 Feb.11

41

Supported AT Command Reference

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

!SCACT? []

Activates / deactivates PDP context for FIFO interface

!SCACT=[, ]

This command is used to activate or deactivate the specified PDP context for
FIFO interface.

Supporting modems:
• All

Usage:
• AT!SCACT?[] reports the status of the identified profile (). If no
 is specified, the status of all profiles is returned.
• AT!SCACT=[,] is used to set the state of the identified profile
(). If no  is specified, profile 1 is updated.
Parameters:
 (PDP context activation state):
• 0 = Deactivated
• 1 = Activated
• During assignment, any  other than 1 or 2 will return an ERROR
response.
 (PDP context definition):
• Valid range: 1–16

!SCDFTPROF?

Queries / sets the default profile ID

!SCDFTPROF=

This command is used to query / set the default profile ID.

Supporting modems:
• All

Usage:
• AT!SCDFTPROF? returns the default profile ID ().
• AT!SCDFTPROF= sets the default profile ID to .
Parameters:
 (Profile ID):
• Valid range: 1–16 — a valid profile ID that will be used as the default

42

2130617

Modem Status, Customization, and Reset Commands

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

!SCDNS?

Queries / sets profile ID DNS address

!SCDNS=,
,

This command is used to query / set the primary and secondary DNS
addresses of a profile.

Supporting modems:
• All

Usage:
• AT!SCDNS? returns the primary () and secondary
() DNS addresses for the specified profile ().
• AT!SCDNS=,, sets the default primary and
secondary IP addresses for domain name services.
Parameters:
 (PDP context definition)
• Valid range: 1–16 — a valid profile ID that will be used as the default
 (Default primary IP address for DNS lookup):
• ‘Dot format’ IP address. For example, 10.10.10.1
• Used by modem when no DNS server address is received over the air
during PDP context activation
: Default secondary IP address for DNS lookup
• ‘Dot format’ IP address. For example, 10.10.10.1
• Used by modem when no DNS server address is received over the air
during PDP context activation

!SCPADDR=

Displays IP address for specified PDP context

Supporting modems:
• All

This command is used to display the IP address of the specified PDP context
(profile), or for all profiles.
Usage:
• AT!SCPADDR= returns the IP address for the specified  in the
format , .
• AT!SCPADDR= returns the IP addresses for all defined profiles.
Parameters:
 (profile ID (PDP context))
• Valid range: 1–16
 (IP address of )
• ‘Dot’ format IP address (for exampel, 255.255.255.0)

Rev 2.8.1 Feb.11

43

Supported AT Command Reference

Table 3-2: Modem status, customization, and reset commands (Continued)
Command

Description

!SCPROF?

Queries / sets SWI-specific profile information

!SCPROF=,
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