[cisco-voip] Telex Radio Dispatch system with Cisco Phones

[Carter, Bill]

A more thorough explanation.
 
I have Telex Radio Dispatch system I want to integrate with a Cisco phone system.
 
Telex system has interfaces to the radio networks and the telephone network. 

Each user has a Telex ADHB-4.  This device mixes the audio from the different Radio networks and the telephone. Coming out of the ADHB-4 is a headset for the dispatcher. The dispatcher has a desktop application were they can select different audio sources and the ability to combine audio channels. 

The interface between the phone needs audio TX and RX along with on/off hook switch and ground across 6-wires.  The box/application needs the hook switch to answer and hang up calls. 

I am wondering if I can create a cable from the Phone to the Telex Device. Telex provides a basic diagram:


Phone----------ADHB-4 NENA Connector

--------Hook Switch--->6

<------TX audio-------2&5

----------RX audio--->3&4

--------ground------->1


I would think I could get TX and RX audio and Ground from the phones headset port. I would also think I could get Hook Switch from the phones aux port (this is the port used for the wireless hook switch feature).
 
http://billyc5022.blogspot.com/2011/02/telex-radio-dispatch-system-integration.html
 
 
 

________________________________

From: cisco-voip-bounces at puck.nether.net on behalf of Carter, Bill
Sent: Mon 2/21/2011 5:00 PM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] Telex Radio Dispatch system with Cisco Phones



Anyone have experience with this?
The Telex ADHB-4 can interface with a phone using a 6-wire NENA connection. The NENA connection uses wires for TX and RX audio and on/off hook detection.

Sent from my iPhone
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