Presence and IntComm WG

[Xiaotao Wu <>]

On Mon, 12 Apr 2004, Jeff King wrote:

>
> >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.

So, seems we have to use G711 if we want to have edial conference support.

-Xiaotao

>
> 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
>
>
>
>