Presence and IntComm WG

["Jeff King" <>]

From my testing with Session UA, edial worked with G.711.  With GSM, the
call connected, but audio media did not work.  It appeared that edial
server thought the offered GSM codec was G.711.

Jeff



-----Original Message-----
From: Jamey Hicks 
[mailto:]
 
Sent: Monday, April 12, 2004 2:14 PM
To: 

Subject: Re: [wg-pic] Session for MM

Xiaotao Wu wrote:

>On Mon, 12 Apr 2004, Jamey Hicks wrote:
>
>  
>
>>Xiaotao Wu wrote:
>>
>>    
>>
>>>Is there GSM codec support for pals server. I can set sipc to use GSM
as
>>>the default codec to save bandwidth. GSM codec suppose to use the
same
>>>bandwidth as iLBC, but iLBC may be better with big packet loss (10%).
>>>
>>>
>>>
>>>      
>>>
>>Only the UA's need to agree on the codec.  There should be no problem
if
>>SIPC uses GSM as its default codec.  But please test it with the edial
>>bridge to make sure it does not cause a problem there.
>>    
>>
>
>But the edial bridge need to support GSM codec for conference mixing.
Does
>it support that? I will try it.
>
>  
>
Either edial will support GSM and accept that as a codec in the call, or

it will not support GSM and it will drop GSM from the SDP during call 
setup, or it will fail to set up the call.  Either of the first two 
behaviors is OK, the third would be a bug, unless I'm mistaken.

Jamey