08-11-2007 01:10 AM - edited 03-18-2019 07:41 PM
I have cluster pub and 2 sub with CCM(4.2.3) SR2b, i can make offnet call through h323 intercluster trunk connected to GSM GW but when i make conference with it and i can hear him but he couldn't hear me.
notice CFE software of all the CCM is registered.
Regards
Haitham,
08-11-2007 09:47 AM
Hi Haitham,
This really sounds like a Codec issue. Have a look;
Cisco CallManager Software Conference Bridge supports only G.711 a-law and G.711 u-law and does not understand any other codec such as G.729. External callers cannot be added to the conference if they use a codec other than G.711. In order for calls that originate as G.729 to be connected with phones that use G.711, you need to use a transcoder.
From this Conferencing doc;
http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a008009476a.shtml
Hope this helps!
Rob
08-12-2007 02:04 AM
Thanks Rob for your useful information.
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