Hello. We are a small IP phone service provider, and one of our customers needs to integrate a simple sip stack into their windows (C++) point of sale system. I have played around a bit with pjsip and am sure it will meet our needs. We are interested in working with an experienced developer to build this application. This is not for a full blown voice connection, but just to pick up inbound callerid and pass it to the POS software, and also for some two-way communication via sip-info packets. If anyone on this list can assist please contact me at jscully@plphone.com <mailto:jscully@plphone.com> John Scully