I have found c/c++ opensource library of CSTA (ECMA-269/ECMA-323 CSTAIII XML protocol) at http://sourceforge.net/projects/cstainside/files/ that has integration with freeswitch Seems possible to integrate this with pjsip/pjsua to obtain CSTA for SIP Phone User Agents http://www.ecma-international.org/publications/techreports/E-TR-087.htm With this, pjsua could have the "callcontrol" of real PBX phones similar to Microsoft Office Comunicator, ie. make call, transfer, etc. and then has applications like clic2dial with pjsip. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20090924/41a81048/attachment.html>