Transcoder not work.

Unanswered Question
Mar 25th, 2010

Transcoder is regiestered to CUCM 6.1 successfully. When I make a call from G.711 to G.729, the call fail. From the log I can see CUCM allocate the transcoder but then release it without any errors.

Any help would be appreciated.

I have this problem too.
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gogasca Sun, 03/28/2010 - 23:37

Make sure of these things:

1. Profile in trasncoder is configure with proper G729 version (G729, g729a, g729b, g729ab)

2. Make sure Region between G711 and XCODER is configured for G711 and region between G729 zone and XCODER is G729

Region between G711 and G729 should be G729 for xcoder to kick in.

Example

IP Phone (g729) --- IVR (g711)

REGIONA              REGIONB

TRANSCODER REGION C

Codec bw REGION A and B is G729

Codec bw REGION A and C is G729

Codec bw REGION B and C is G711

3. Device have access to XCODER via MRGL or NULL MRGL

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