Showing posts from February, 2011

Telex Radio Dispatch System Integration with Cisco Unified Communications. Part 2

After much research, calls to our Cisco SE, a PDI case, and a conference call with Telex we have decided...

We are going to implement Telex SIP softphones on the desktops. This will provide the best solution short of rigging up some cables connecting the Cisco IP Phone headset port and auxiliary port to the Telex ADHB-4 box. Telex stated this solution has been available for five years but has only caught on in the last year.

Running this system on SIP softphones leaves me a little unsettled, I am somewhat comforted because Telex seems to be releasing updates to their software on a regular basis. This tells me they are actively fixing problems.

The main downside to this solution is the Cisco UCCX Call Center version 8.5 doesn't support 3rd party SIP phones. I can't say that I blame the UCC Business Unit since this could require testing and certifying many 3rd party SIP phones. In this testing, of course some vendors would be left out, customers would complain, and this would p…

Telex Radio Dispatch System Integration with Cisco Unified Communications. Part 1

I have Telex Radio Dispatch system I want to integrate with a Cisco phone system.

Side note: Using two Cisco UCS C-Servers with VMware. Cisco' UC on UCS. Works great!

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:

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…