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Cisco Bug: CSCur12978 - Multicast MOH stops working after one call

Last Modified

Aug 03, 2017

Products (100)

  • Cisco IOS
  • Cisco 888W Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco C892FSP Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco 886VAG 3G Integrated Services Router
  • Cisco 2951 Integrated Services Router
  • Cisco 861W Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco 819 Hardened Integrated Services Router
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Known Affected Releases

15.2(4)M7 15.3(3)M4 15.5(1.5)T

Description (partial)

Symptom:
Cisco IOS gateway running 15.3.3M4 or 15.2.4M7 with multicast MOH will work for the first call over a PRI to the PSTN.

Multicast MOH works on the first call here:

2951_pod8#sh ccm musi
Current active multicast sessions : 1
 Multicast       RTP port   Packets       Call   Codec    Incoming
 Address         number     in/out        id              Interface
===================================================================
239.1.1.1         16384   184/184          2    g711ulaw  Gi0/0

If you hang the call up all other calls where Multicast MOH needs to be played to the PSTN fail.

2951_pod8#sh ccm musi
Current active multicast sessions : 1
 Multicast       RTP port   Packets       Call   Codec    Incoming
 Address         number     in/out        id              Interface
===================================================================
239.1.1.1         16384   0/0              4    g711ulaw

Conditions:
Multicast MOH is configured to be played to the PSTN over a PRI.

Cisco IOS version 153-3.M4 or 15.2.4M7 running on the gateway.

Related Community Discussions

MoH will not play at the branch office
Hi all,  please help me with this MoH issue. Problem: MoH will not play at the branch office.  Callers from across the PSTN get the silent treatment during hold. Central site: CUCM cluster v7.1 MoH Server is using 239.2.1.1 / port 16384 with "increment multi-cast" on IP Address Audio source No.2 has file name of "SampleAudioSource" with Max Hop = 2 run sql select mohaudiosourceid, multicastaddress, multicastport from mohservermulticastinfo where mohaudiosourceid='2' mohaudiosourceid multicastaddress ...
Latest activity: Mar 19, 2015
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