Music On Hold (Live Feed to CallManager)

I'd like to use a multicast audio stream option instead of sound card option.

I found following document on cisco website which tricked audio stream by manipulating TTL. But I could not find a way to make TTL to 1 for multicast stream from CallManager.

On top of that, I've an unpleasant experience with the way IOS handle the packets when TTL reaches 0. Basically, all the packets with TTL 0 are process-switches which make CPU very unhappy. I'm talking about

6500 with Sup-720 with moderate amount of traffic.

Anyway, I wonder if someone already had success with Music-On-Hold with live audio streaming feed (not with an external sound card) either in a lab or in production.

Thanks in advance.


  1. Music-On-Hold using live audio stream Doc from

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