Hi, With the advent of TLS support for SER, i was testing it with KPhone (TLS being used between SER proxies only, Kphone-to-SER via UDP). Turned out that kphone would not respond to any message (it would receive them, but plain ignore them). The problem: TLS as transport mode in the VIA headers was not supported, thus, the SIP messages were considered not valid. I am attaching a patch to correct this for kphone 4.1.0, but i guess it can be applied with little modifications to earlier versions (4.0.3 to 4.0.5) but i am not sure. Regards, Cesc PATCH STARTS HERE: Index: dissipate2/sipclient.cpp===================================================================--- dissipate2/sipclient.cpp (revision 1)+++ dissipate2/sipclient.cpp (working copy)@@ -1034,6 +1034,9 @@ printf( "SipClient: Sending TCP Response\n" ); outsocket = new TCPMessageSocket; break;+ case SipVia::TLS:+ printf( "SipClient: TLS in top via, not supported (full TLS support not implemented)\n" );+ break; case SipVia::BadTransport: printf( "SipClient: Bad transport on incoming Via\n" ); break;@@ -1232,6 +1235,9 @@ printf( "SipClient: Sending TCP Response\n" ); outsocket = new TCPMessageSocket; break;+ case SipVia::TLS:+ printf( "SipClient: TLS in top via, not supported (full TLS support not implemented)\n" );+ break; case SipVia::BadTransport: printf( "SipClient: Bad transport on incoming Via\n" ); break;Index: dissipate2/sipvia.h===================================================================--- dissipate2/sipvia.h (revision 1)+++ dissipate2/sipvia.h (working copy)@@ -49,6 +49,7 @@ enum Transport { UDP, TCP,+ TLS, BadTransport }; /**Index: dissipate2/sipvia.cpp===================================================================--- dissipate2/sipvia.cpp (revision 1)+++ dissipate2/sipvia.cpp (working copy)@@ -37,6 +37,7 @@ switch ( t ) { case UDP: return "UDP"; case TCP: return "TCP";+ case TLS: return "TLS"; case BadTransport: return "BAD"; } return QString::null;@@ -46,6 +47,7 @@ { if ( t.compare( getTransportString( UDP ) ) == 0 ) { return UDP; } if ( t.compare( getTransportString( TCP ) ) == 0 ) { return TCP; };+ if ( t.compare( getTransportString( TLS ) ) == 0 ) { return TLS; }; return BadTransport; } PATCH ENDS HERE Unclassified