Music on hold issues CUCM 7.0

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Jul 7th, 2009
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I am trying to Integrate Cisco CallManager and Cisco SRST to Use Cisco SRST As a Multicast MOH, however when i enable muticasting on the MOH audio source coniguration page, the MOH stops playing on all location including the local site. what am i doing wrong..

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KonradStepniewski Tue, 07/07/2009 - 05:49
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First. Can you route multicast in your network?

Second if you can. Check TTL value in MOH settings. TTL 2 will allow to pass 2 hops for multicast packets.

Okechi Awujo Wed, 07/08/2009 - 03:07
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Muiticast routing is not enabled on the network. I'll configure multicast Thanks a lot.

rgoodwin7399 Tue, 07/07/2009 - 12:31
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Make sure your router configurations has these commands in it and that the ip address in your call-manager-fallback section matches what is configured for your MOH ip address in CUCM and make sure you have a loopback address configred for MOH as well.


application

global

service alternate default


interface Loopback0

description Used for Music ON Hold

ip address 10.10.240.107 255.255.255.255


ccm-manager music-on-hold

call-manager-fallback

max-conferences 8 gain -6

transfer-system full-consult

limit-dn 7940 2

limit-dn 7960 2

ip source-address 10.138.207.65 port 2000

max-ephones 42

max-dn 96 dual-line

transfer-pattern 8626250..

transfer-pattern 250..

translate called 10

moh Frischkorn.ulaw.wav

multicast moh 239.1.1.1 port 16384 route 10.138.207.65 10.10.240.107


Note in my example that the multicast moh ip is what should match your cucm ip, the port also has to match and the router would be your voice sub-interface via your loopback interface. Also make sure the moh file is on the flash card of the rotuer and that the name of the file is exactly the same in your call-manager-fallback section.


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