1 Telephone Interconnect

Telephone Interconnect Telephone Interconnect

User Manual: Telephone Interconnect

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Agenda
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What is DTP briefly
Availability
What it does and does not do
Traditional (analogue) phone patch
DTP in Single Site; IP Site Connect and Capacity Plus configurations.
Radio and repeater configuration

What is DTP?
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DTP or Digital Phone Patch is a feature in MOTOTRBO which allows radio
users to call telephone numbers and visa versa.

Availability
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Supported in all MOTOTRBO hardware as of release 1.8 (i.e. firmware
version R01.08.xx).
Older hardware can simply be upgraded via the CPS to firmware version
R01.08.xx.
Firmware updates are provided free of charge via Motorola Online.

Availability
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In addition to the firmware upgrade, a phone patch licence (entitlement ID)
will need to be purchased from Motorola or a Motorola Channel Partner.

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The Motorola DR3000 or MTR3000 cannot be connected directly into the
phone line – a phone patch is also required.

Licence Purchase Process
1.
2.
3.
4.
5.

Order the License Keys via Motorola On Line
Receive an email with an Entitlement ID (EID)
Register serial numbers of equipment with Motorola via CPS
Activate the feature on the MOTOTRBO equipment via CPS
Program features via CPS

Functionality
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DTP enables MOTOTRBO radio users to place and receive telephone calls
which are routed via a gateway between a landline telephone network and
MOTOTRBO radio system.
The gateway between the landline telephone network and MOTOTRBO
radio system comprises of a Analogue Phone Patch (APP) box connected
to a MOTOTRBO repeater configured as a phone gateway repeater.

Telephone Interconnect Products
Model 30 Worldpatch
Model 735 Radio Teleconnect
Model 35 Microconnect

Model 30 Worldpatch

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Simplex and half duplex Interconnect
End to End Telco Lines and PBX extensions
Remote programmable from DTMF radio or telephone

Morse ID, Toll restrictions, DTMF regeneration
Courtesy Tones , ANI codes
SELCALL version with DTMF encode and decode

Model 30 Worldpatch

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Low-cost , Fits in small repeaters enclosures.

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Half-duplex operation with privacy mode

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Adjustable VOX threshold to suit users voice level

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Repeater control for radio to radio conversation

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Digital voice delay for enhanced simplex operation

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50 Autodials

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Hookflash from mobile via *0

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19 inch rack mount bracket available.

Model 30 Worldpatch

Connections details back panel

Model 30 Worldpatch
Operation
Standard Version
Phone to Mobile Calls
1.Telephone Line Rings.
2.Model 30 waits RINGS TO ANSWER before ringing on the RF Channel.

3.If Channel is Free, it Rings on the RF Channel waiting a Connect Code from a Radio.
4.If no answer, call is terminated. If radio answers (COR, ANI, or DCA) line goes Off
Hook and allows voice call to progress.
1.Disconnect.
Disconnect Code from radio
Dial Tone Disconnect - Busy Disconnect – Mobile Activity Timer
Call Limit Timer – Phone Party Disconnect (hung up or DTMF #0)

Model 30 Worldpatch
Operation

Standard Version
Radio to Telephone Calls
1. A radio enters the DTMF access Code and unkeys.
2. M30 will take the phone line off Hook and send Dial Tone to Tx.
3. Radio dials the destination telephone number.
4. M30 checks restricted digits string.

5. M30 dials to the telephone network and establishes the call.
6. Disconnect. As previous slide.

Model 30 Worldpatch
Operation
SELLCALL Version
If Selcall is Disabled, M30 will behave as the Std. model .

Phone to Mobile Calls (Selcall Enabled)
1.

Telephone Line Rings.

Incoming call will be answered after programmed number of rings.

The caller will hear two beeps as a prompt to enter radio ID

If Channel is Free, the Selcall is transmitted followed by ringing until the mobile

answers the call.
5.

If no answer, call is terminated. If radio answers (COR, ANI, or DTA) line goes Off Hook
and allows voice call to progress. On DTA there could be a caller password.

Disconnect.
Disconnect Code from radio
Dial Tone Disconnect - Busy Disconnect – Mobile Activity Timer
Call Limit Timer – Phone Party Disconnect (hung up or DTMF #0)

Model 30 Worldpatch
Operation
SELLCALL Version
If Selcall is Disabled, M30 will behave as the Std. model .

Radio to Telephone Calls (Selcall Enabled)

The radio user enters the DTMF access Code and unkeys.

M30 will take the phone line off Hook and send Dial Tone to Tx.

Radio user dials the destination telephone number.

M30 checks restricted digits string.

M30 dials to the telephone network and establishes the call.

Disconnect. As previous slide.

If radio to radio calls are enabled, the radio user must enter a Steering digit and the Access Code.

Model 735 Radio Teleconnect

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Radio to telephone interconnect for PABX or PSTN

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Direct Access to Telephone

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For Simplex or duplex Base stations and repeaters

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Two tone, Five Tone (Selcall) and DTMF selective calling

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PC programmable, remote access through internal modem

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User definable access code

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2-Tone, (Quickcall II) 5-Tone (ZVEI, CCIR, EEA), and DTMF selective calling

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Works with some trunking radios, Mototrbo, Nexedge

Model 735 Radio Teleconnect

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Conversation Timers

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Optional user recordable voice prompts

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Optional dial click decoder

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Optional digital voice delay for enhanced simplex operation

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Dial out restrictions per user/ system

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Optional Call Detail logging

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99 autodial telephone numbers

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CE conformity

Model 735 Radio Teleconnect
Operation

Telephone to Radio Call Operation
• A caller from a PSTN or PABX extension dials a telephone number and rings
model 735 .After x rings M735 answers with a propmt tone or a dial tone or a
welcome message.
• Then the caller overdials a user number ( eg.001) or Access ANI or a complete ANI
number (5 tone code) of the radio he wants to contact.
• If the called radio is an enabled user and M735 has its prompt memory
programmed could respond “Thank you” then key up the transmitter and send the
selective calling sequence followed by ringing tones to the mobile and the
telephone caller.
•To terminate the call the calling party dials #0 or long #
•To terminate the call the called party sends its disconnect ANI.

Model 735 Radio Teleconnect
Operation

Mobile Radio to Telephone Calls

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Mobile radio equipped with DTMF can call into
the telephone system. The mobile keys up and
sends its ANI in DTMF sequence like an access
code.
If the radio is allowed to make more than one type of call he
must send the steering digit.
Steering digits are : Mobile Repeat : 5
Mobile to Telephone Call : 9
Mobile to Mobile or Talkback : 7
Then DTMF tones of the called party are sent to the line
To terminate the call the mobile sends Disconnect ANI or long #

Model 35A Microconnect

•For using with Simplex, Half Duplex and Full Duplex radios
•Regenerated DTMF and Pulse dialing
•VOX and sampling combined operation in Simplex mode
•Programmable Telco Access / Disconnect codes
•Programmable by DTMF via a telephone line or radio

Model 35/35A Microconnect

•Digital Voice delay option for improved Simplex operation
•Adjustable hybrid balance
•CE approved
•Toll inhibit
• Hookflash function ( 35A only)

• Direct Telco Access mode
• M35 European version . M35A USA version .

Model 35A Microconnect
Operation

Telephone to Radio Call Operation
1. Phone caller dials M35’s telephone number
2. Rings to answer =2 (Default)
• Answer / Ring-out mode
• Answer / Access / Ring-out mode
• No Answer / Ring out mode
3. Radio user answers the Call by keying up (PTT) or sending a radio user code.
4. Radio user disconnects sending a disconnect code or Telephone user sends
disconnect code(#) or mobile Activity Time Out, or Call Limit time out, or Busy
signal detection or telephone user hungs up.

Model 35A Microconnect
Operation

Mobile Radio to Telephone Calls
1.
2.
3.
4.

Radio user keys up (PTT) and dials Access Code ( *2 default)
Radio user dials telephone number, toll restriction and call in progress.
Telephone user answers the call or Activity time out.
Radio user disconnects sending a disconnect code(#2) or telephone user
sends disconnect code(#) or mobile Activity Time Out, or Call Limit time out, or
Busy signal detection on line or telephone user hung up.

Functionality
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DTP is supported by the following system configurations: Conventional
Single Site Repeater, IP Site Connect (LACs & WACs) and Capacity Plus.
DTP supports:
– Inbound individual and talkgroup phone patch calls
– Outbound individual phone patch calls.

Functionality
Radio System Features:

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Phone User to Radio User Call (Phone to Radio)
Radio User to Phone User Call (Radio to Phone)
Phone User to Talkgroup Call (Phone to Talkgroup)
Phone User to All Call (Announcement from Phone)
Radio Over-Dial Capability (for use with automated response systems)
Phone User Target Selection (Talkgroup, Individual, Identifier, Slot Number)
Radio system reservation during Phone Call

Functionality
Typical Analogue Phone Patch Features:

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Connection to PSTN or PBX
Restrict Outbound Radio User Access
Block/Allow Radio from Performing Call Type (International, Long Distance,
Toll, Local, 911, etc…) per Access Code
Inbound Restrictions (Restrict Phone User Access)
Phone Usage Time Out Timer

Functionality
Unsupported features:

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Talkgroup to Phone User Call (Talkgroup to Phone)
Phone User Caller ID or Phone Number displayed to Radio User
Phone Call Log in Radio (Missed, Answered, Outgoing)
Radio System Logging of Dialed or Source Phone Number * **
Voice Prompts **
Custom Ring Tones

* Possibility for AP/LD development.
** Dependant on APP feature set.

Functionality
Unsupported features:

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PBX Custom feature (i.e. Voice Mail indications, extension calls, etc.)
VoIP interconnect ***
Feature Interaction Limitations
No Transmitter Interrupt of a Phone Call
No Enhanced or Basic Privacy Phone Calls
No Priority Sampling while in a Phone Call
No Concept of Emergency Phone Call, but may Emergency Revert out of a
Phone Call.

*** Can be done via VoIP device with FXO support.

Functionality
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Radios CPS configured for phone access on a per personality basis.
Only phone-enabled radios can make and receive phone calls.
Communication between telephone user and radio user is half duplex.
– The Phone Gateway repeater always transmits phone audio over the air
if no radio transmitting over the air.
– A radio always transmits impolitely over phone audio when a radio user
wants to talk.
– The Phone Gateway repeater automatically controls the Radio to Phone
and Phone to Radio switches.

Functionality
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Radios always follow Enhanced Channel Access rules during phone calls.
This avoids multiple radios attempting to access the channel (phone call):
– A radio sends one voice header to request the channel.
– The repeater grants the channel by repeating the voice header from the
requesting radio.
– After receiving its echoed back voice header, the radio continues
sending its voice header and voice packets.

Hardware
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An APP box is required – some recommendations as follows
1. Zetron M735
2. Zetron M30
3. Motorola MRTI2000
(note: this is not an exhaustive list)
Assess required to a PSTN POTS line or a company’s PBX system.
Digital Telephone Patch feature does not require any new MOTOTRBO
hardware.

Hardware
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Single repeater in digital mode.
Phone line can be accessed via slot 1
or 2.
PSTN or PABX

Hardware
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Two repeaters in IP Site Connect
mode.
Slot 1 is linked.
Possible to make a phone call from
both sites on slot 1.
Only possible to make phone call on
slot 2 when roamed to site with APP.

IP (LAN or WAN)

PSTN or PABX
M

Hardware
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Capacity Plus site with three
repeaters.
APP on RF channel 3 (repeater ID 5
and 6).
System has 6 virtual channels but only
one APP.

LAN SW

PSTN or PABX
M

Hardware
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LAN SW

Capacity Plus site with three
repeaters, each with APP.
Can support three simultaneous
inbound or outbound phone calls.

PSTN or PABX
M

Hardware
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The interface between the APP box and phone gateway repeater comprises
an analogue 4-wire interface:
– TX Audio: audio line from landline to repeater, single-ended.
– Rx Audio: audio line from repeater to landline, single-ended.
– PTT: indicating APP is active, 5v tolerance input GPIO.
– COR: indicating radio is transmitting, 5v tolerance output GPIO.
Since the repeater has just one 4-wire interface, this means the phone
gateway repeater can support only a single phone call at a time.

Phone to Radio Call
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Individual call to radio 501
– Single Site / IP Site Connect: 061269576826P18501
– Capacity Plus: 061269576826P8501

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Group call to group 102
– Single Site / IP Site Connect: 061269576826P17102
– Capacity Plus: 061269576826P7102
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Red: Telephone Patch Number
P: Pause
Green: Slot (IPSC)
Blue: Call type - 7 talkgroup; 8 individual
Yellow: Radio or group number (determined by call type)

Radio to Phone Call
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Individual call to telephone number 061269576237
– Single Site / IP Site Connect / Capacity Plus : 1234#P061269576237

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In IPSC and Single Site, the user has to select a channel which is
connected / linked to a APP.

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In Capacity Plus, channel selection is not needed as this is handled by the
repeaters / radio.
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Red: Telephone Patch Number
P: Pause
Green: Access code

Configuration

Repeater generated deaccess code for
APP when hang up required (e.g. during
emergency takeover).
Duration repeater waits for a radio to
answer a phone call before ending call
setup. Applies to both private and
talkgroup phone calls (where ringing
response required).
Interval between DTMF digits (for repeater
generated deaccess code).
Duration repeater waits for Target ID entry
during phone to radio call setup before
repeater generates deaccess code to end
call setup.

Duration repeater waits
(after phone call
initiated) for busy
channel to become
available before ending
call setup.
Duration of DTMF digits
(for repeater generated
deaccess code).

Target ID length
including call type
(private, talkgroup or all
call), timeslot (Slot
Number) and radio /
talkgroup ID entered by
Phone User when
initiating a phone call.
Number of Target ID
validation attempts
during phone to radio
call initiation.

Configuration

Defines whether repeater
used as phone gateway for
configured channel. For
conventional channels,
choices are None, Slot 1,
Slot 2, and Slot 1 & Slot 2.
For Capacity Plus Voice
channels, choices are None
and Slot 1 & Slot 2.

Configuration
ID of phone gateway repeater
(i.e. repeater to which the APP
connected). To radio, this
represents phone’s ID and
must be unique to other
repeaters / radios in system.
Radio generated deaccess
code for APP when hang up
required at end of phone call.

Phone system access
code which grants radio
access to initiate certain
types of phone call.

Duration of silence prior to
sending first DTMF digit in
access code.

Duration of DTMF tones and
“pauses” in access code,
deaccess code, phone
number and over-dial digits
generated by radio.
Duration of silence between
access code and dialling
digits.

Duration of intervals
between DTMF tones in
access code, deaccess
code, phone number and
over-dial digits generated
by radio.

Configuration

Phone contacts serve as
address book to make radio
phone calls.

Configuration

Specifies configured phone
system which radio uses for
initiating and receiving
phone calls on this channel.
Selecting ‘None’ disables
radio from initiating and
receiving phone calls on
this channel.

Configuration
Phone Exit: Allows radio button to be configured to terminate
phone calls (applies to non and numeric display radios only).

Allows user to access
phone address book
(contacts list) to make a
phone call.

Provides user
with flexibility to
dial any phone
number.

Configuration

Allows user to select phone
number from phone address
book (contacts list).

Hardware (DR3000)

Hardware (MTR3000)
14

14.2VDC+

Configuration
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The inbound and outbound audio to and from the Zetron M30 or M735
needs to be adjusted.
M735 jumper settings:
– JP21 B (External COR)
– JP31 A (Negative COR)
– JP24 A (Flat Output at TX Audio).
Details can be found in the latest DR3000 Basic Service Manual.

1 Telephone Interconnect

Telephone Interconnect Telephone Interconnect

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