CODEC | Why am I seeing G.729 when I have G.711MU programmed within the Avaya CM?

[thar27]

RE: thread690-1766010

Howdy,

While performing traceSM and upon receiving logs from our SBC folks... we've found that our traces are showing G.729 (see attachment) but ALL of our codecs are programmed in the CM to use G.711MU, first. The SBC’s are also programmed for G.711MU.

Is there anywhere else I can check for codec programming?

Thank you in advance for your assistance!

 

[kyle555]

would need to see a full call trace and know how your network regions are setup.

sure, region 1 can use codec set 1 that's 711 first. maybe the sbc is in region 2 and region 1 to 2 uses codec-set 2 of "729 first, then 711" in the connectivity matrix.

 

[thar27]

Thanks Kyle,

That would make sense.. but all codec sets begin with G711. (see attached)
What would make it choose the 2nd option in the codec set?

 

[marcuspb]

If Session manager can't negotiate the call using the first choice it will try the 2nd choice. My money says the SBC is set for G.729 only.

 

[mattKnight]

Or your carrier only supports G729

Take Care

Matt
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