This problem sounds similar to http://www.pjsip.org/pipermail/pjsip/2007-January/001773.html Try upgrading Xlite and see if it helps. cheers, -benny On 2/8/08, P.J. Cast. <pjcast at yahoo.com> wrote: > Using a fairly recent SVN version of pjsip, (it has > been like since first version I tried in December) > calling an Xlite phone does not work. I could provide > a SIP Packet Capture if it might help... But, the > issue seems so easy to reproduce that I think that is > not needed. > > Basically, when calling from pjsip client (pjsua demo) > to Xlite phone, it gets the INVITE message, and sends > 200 OK - but with no media. Hence, there is a > connected call, but for whatever reason, media > negotiation broke. Happens always... which is why I > wonder why no one else has mentioned this? > > It seems to me that something pjsip is sending is > breaking xlite's ability to chose a codec (I tried > enable all codecs and enabling just PCMU). However, > when Xlite calls pjsip client, everything works as > expected. > > I think Xlite is broken in someway, as the pjsip > client (so far) has been able to place calls to any > other SIP device. But, Xlite seems like it is fairly > widely used, so I hope that the issue is a simple fix. > It is possible that the issue is somehow caused from > the SIP Proxy I am using to call through, but since > everything else but Xlite phone is working great, I > don't really see how. > > Thanks, > Phil