Presence and IntComm WG

[Xiaotao Wu <>]

>
> >    Yes. Calling 
> > sip:
> >  gives me the Yale Employee Weather
> > Information line. Calling 
> > sip:
> >  I get the MIT "University is
> > open and operating as usual" hotline.   The MIT address however seems
> > to loose audio after the greeting plays for a few seconds. Right about the
> > time the woman begins to give the emergency web site URL.
>
> This is with the version that Xiaotao released last night?  Windows?
>
> I can call my Pingtel phone 
> <sip:>
>  and that's fine but I

Dennis,

I just called the 21232 number, I can hear you. (sorry, I forgot to
connect the mic to my machine so I disconnected the call.)
I also tried  
sip:,
 it gave me 200 ok, but it send BYE to
me immediately. I then tried 
sip:,
 it gives me 500 error.

I think the problem is at the Cisco gateway for GSM codec handling.
For the new version, I set GSM as the default codec. For Pingtel phone, it
does not support GSM codec, so, it use g.711 in its 200 response, (sipc
provides choices, 3 (gsm) and 0 (g711)) and sipc talks to Pingtel phone
in g.711, it works.

For Cisco gateway (both 27669 and 37669 Cisco-gateway), both 27669 and
37669 tried to use GSM codec, however, both of them cannot handle the GSM
codec used by sipc.

I tried to change back to use g.711 as the default codec, both 27669 and
37669 works.

-Xiaotao

> can't seem to call through the MIT or Yale gateways.  I dunno...
>
>                  Dennis
>