Ok Sam, solved. The t_relay was called before, in a different part of script. Now it's working as you suggested me. Thanks -- View this message in context: http://opensips-open-sip-server.1449251.n2.nabble.com/Catch-183-Session-Progress-tp7582272p7582293.html Sent from the OpenSIPS - Users mailing list archive at Nabble.com.