Hi Jay, I'm not an expert on the subject but I did some digging into OCS a couple of months ago. First it might be authentication problem OSC doesn't use the standard authentication schemes, it uses Kerberos or NTLM. Secondly MS have added propriatry extensions to the SIP protocol and you have to license these extensions for your client, so to my knowledge the best way to build OCS is using the UCC Client API (I think it's released on Windows but not on Windows CE yet) . But if you get this to work I'm more then happy since OCS support is on our agenda and hopefully with PJSIP. BR/Olle Olle Frimanson Keystream AB S:t Olofsgatan 33B, 75330 Uppsala Tel: +46 18 4444375 Fax: +46 18 4444376 Mobile +46 70 6661875 <mailto:olle.frimanson at keystream.se> olle.frimanson at keystream.se www.keystream.se _____ From: pjsip-bounces@xxxxxxxxxxxxxxx [mailto:pjsip-bounces at lists.pjsip.org] On Behalf Of jay kumar Sent: den 4 december 2007 03:37 To: pjsip at pjsip.org Subject: Pjsip with Microsoft OCS server Hi, Has anybody tried using PJSUA with Microsoft OCS server? I tried using the following command pjsua --id sip:1234567890 at 192.168.10.192;trnasport=tcp --local-port=4020 Added a buddy as 4567 at 192.168.10.192;trnasport=tcp At first I was able to connect and I thought it works great. I could make a call and even it says 1 call is active. I was very happy till this point.But, when I looked at the OCS server , the message didn't go through and even there is no connectivity. I then removed my account from the OCS server , restarted the OCS server . I am assuming that at this point, the pjsua should not even connect to the OCS serever. To my surprise, pjsua got connected and it still says 1 call is active. So weired !!!!!!!!!!!!!!!!! Am I doing something wrong???? 192.168.10.192 is my OCS server and I am using tcp and no registration is required. Can anyody put some light into this??????????? Jay -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20071204/3015dd94/attachment-0001.html