Yes, minisip is opensource lib available for download. Ther is also gtk gui for testing. -- View this message in context: http://opensips-open-sip-server.1449251.n2.nabble.com/OpenSIPS-TLS-and-rtpproxy-tp7587053p7587085.html Sent from the OpenSIPS - Users mailing list archive at Nabble.com.