I've compiled pjproject from SVN on my Mac Powerbook running OS 10.5 Leopard, and I've been playing with the sample applications. I've had some problems (see below) with the siprtp and simpleua sample applications. Has anyone experienced these problems? Has anyone used these application on a Mac? I can compile from SVN and run these sample applications fine on my Ubuntu Linux machine. Thanks Dan macbook-pro:samples daniel$ ./simpleua-i386-apple-darwin9.2.0 00:07:46.309 os_core_unix.c pjlib 0.8.0-trunk for POSIX initialized 00:07:46.310 sip_endpoint.c Creating endpoint instance... 00:07:46.310 pjlib select() I/O Queue created (0x2400a4) 00:07:46.310 sip_endpoint.c Module "mod-msg-print" registered 00:07:46.310 sip_transport. Transport manager created. 00:07:46.476 sip_transport_ Error setting SO_RCVBUF: No buffer space available [120055] 00:07:46.476 sip_transport_ Error setting SO_SNDBUF: No buffer space available [120055] 00:07:46.476 udp0x800600 SIP UDP transport started, published address is 192.168.1.100:5060 00:07:46.476 sip_endpoint.c Module "mod-tsx-layer" registered 00:07:46.476 sip_endpoint.c Module "mod-stateful-util" registered 00:07:46.476 sip_endpoint.c Module "mod-ua" registered 00:07:46.476 sip_endpoint.c Module "mod-invite" registered 00:07:46.477 sip_endpoint.c Module "mod-100rel" registered 00:07:46.477 sip_endpoint.c Module "mod-simpleua" registered 00:07:47.017 pasound.c PortAudio sound library initialized, status=0 00:07:47.017 pasound.c PortAudio host api count=1 00:07:47.017 pasound.c Sound device count=3 00:07:47.017 pjlib select() I/O Queue created (0x817414) 00:07:47.017 simpleua.c Unable to create media transport: Invalid argument [code=120022] macbook-pro:samples daniel$ ./siprtp-i386-apple-darwin9.2.0 00:08:53.060 os_core_unix.c pjlib 0.8.0-trunk for POSIX initialized 00:08:53.062 siprtp.c SIP UDP listening on 192.168.1.100:5060 00:08:53.645 siprtp.c Media initialization failed: Invalid argument [status=120022]