04-08-2009 09:15 AM - edited 03-15-2019 05:22 PM
Customer has a request to allow IP phone users (possibly dozens)to listen to live radio dispatch at any time. Only connection from the dispatch system is an analog output. E&M port to FXS port? Multicasting?
Thanks,
04-08-2009 09:40 AM
Hi!
Using a soundcard in the CUCM server you could set up a Music On Hold server which plays a radio stream to callers while on hold.
You would need to connect a radio using a standard audio cable to the soundcard which will then be able to stream the music into your network.
But if you are looking to listen to the readio at any time from the IP phone speaker, this is not possible.
HTH, if it does, please rate.
Regards,
Teresa.
04-08-2009 01:04 PM
I think 'impossible' is a little strong in this case. I seem to remember some options within the IP Phone Services SDK about receiving multicast audio to the speaker through a Phone Service, although that would require quite a bit of development. It is possible that this might be an option through Berbee's Informacast or IpCelerate's IpServer products.
04-12-2009 08:22 AM
Just to add two other options into the mix:
Syn-Apps.net has several good products in this arena. I'm not sure if they provide this exact solution though.
Any time I hear 'radio/dispatch' I think of Cisco IPICS:
04-13-2009 07:42 AM
I am in contact with the customer about whether they think it worthwhile to look in the IPICS direction. Thanks for yourr input...
04-13-2009 02:16 AM
Multicasting should be the way to go. The config below takes an audio stream from an E&M port and converts it to an IP multicast.
voice-port 1/0/0
connection trunk 111
music-threshold -30
operation 4-wire
!
dial-peer voice 1 voip
destination-pattern 111
voice-class permanent 1
session protocol multicast
session target ipv4:237.111.0.0:22222
ip precedence 5
To connect to the audio multicast stream you should be able to write a basic IP service using the RTPMRx URI
Useful links:
http://www.cisco.com/en/US/docs/ios/12_2t/12_2t8/feature/guide/ft_hhip.html#wp1005920
Please rate if helpful
04-13-2009 07:41 AM
Thanks for your info. It was very helpful. I now have a few ways to approach this scenario. I was also in contact with SingleWire (Berbee) about possible solutions and might have a way to go with an external USB MOH adapter and a phone service. SingleWire doesn't support it but they know it works.
Again thanks for your input.
05-08-2009 10:57 AM
Hi Jamesha,
I wanted to ask if there was anything important in the 'voice class permanent' config. You didn't add that to your example....
Thanks
05-08-2009 11:08 AM
Hi,
When I was putting together the reply I just cut and pasted the config from here.
http://www.cisco.com/en/US/docs/ios/12_2t/12_2t8/feature/guide/ft_hhip.html#wp1013245
When I have set this up in the past I did not need the voice-class permanent command.
05-08-2009 11:18 AM
Got it, thanks. I'm going to study the doc in depth. I see the voice class commands, might as well put it in there. Does the virtual interface (vif1)need a specific IP address or just on a different subnet?
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