I am using Cisco CallManager 6.1.3. My Ip Phones are working properly. MOH function is enable. If I hold a call first time, the MOH is ok. But If I continue to hold the call second time, the caller doesn't hear any thing (silent).
Does the third time work, and the fourth result in silence?
It sounds to me like:
- You have multicast MoH configured?
- You have either no MRGs/MRGLs configured, or you have two or more MoH servers in a single MRG?
- When you go on hold the first time, one (working) MoH server is playing the audio, then the second time the MoH is being selected from a different MoH server, and the Mcast traffic is not reaching your handset.
Can you confirm your MRG/MRGL setup?
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I had this same issue and it looks like the culprit was a secondary MOH server. I verifiied this by switching out the MOH servers in the MRG to single out the bad one. Once this was identified, I just took this one out of the MRG allowing for the callers to hear the MOH from the same server instead of switching back and forth from the good one to the bad one every time the callers were put on hold.
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