Transcoder doesn't works when communicating with CCM4.2

Unanswered Question
Sep 21st, 2010
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Hi all,

I'm experiencing a transcoder problem.

I explain :


I have 2 CUCME (CCME1 and CCME2), and 1 CCM4.2 (CCM42)

Transcoders and MTP are configured in each equipment.

All calls are in G729 : Wan Calls

But in each CUCME, there are CUE 7.0.5 using SIP. Communication in each CUCMe<-> CUE are in G711ulaw.

In the CCM, calls to all CCME are in G729 (using region).


1. When I make call from CCME1 to CCME2 : DSP works fine


We can see on the "show sdsp session"  :


Stream-ID:9 mtp:2 10.70.4.2  18036  Local:2000 START 
usage: Ip-Ip                       
codec:G711Ulaw64k  duration:20 vad:0 peer Stream-ID:10


Stream-ID:10 mtp:2 10.70.4.2  17724  Local:2000 START 
usage: Ip-Ip                       
codec:G729  duration:20 vad:0 peer Stream-ID:9


2. Call between CCM4.2 and CCME1 : DSP works fine



Stream-ID:7 mtp:3 10.71.4.2  16410  Local:2000 START 
usage: Ip-Ip                       
codec:G729  duration:20 vad:0 peer Stream-ID:8


Stream-ID:8 mtp:3 10.71.4.2  17370  Local:2000 START 
usage: Ip-Ip                       
codec:G711Ulaw64k  duration:20 vad:0 peer Stream-ID:7



3. But calls bettween CCM4.2 and CCME2 doesn't works


Stream-ID:3 mtp:2 0.0.0.0  0  Local:0 IDLE  
usage: Ip-Ip (Res)                 
codec:G711Ulaw64k  duration:20 vad:0 peer Stream-ID:4


Stream-ID:4 mtp:2 0.0.0.0  0  Local:0 IDLE  
usage: Ip-Ip (Res)                 
codec:G711Ulaw64k  duration:20 vad:0 peer Stream-ID:3



Configurations are the same

so What could be the reason that the CUCME2 cannot complete the transcoding?


Best regards,


Antra

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iantra123 Tue, 09/21/2010 - 07:50
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In addition,


IOS are the same Advipservice 12.4.24T2

Routers are the Sameversion

CUE are the same version

configuration are the same.

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