I've changed the iLBC filter and double and triple checked my settings, but so far am unable to call out. As far as I can tell everything is set up correctly; the voipwise client on my computer even signs out when I change my presence to on. Also, I've verified with the client on my computer that I can call the number I'm experimenting with (my cell) freely with Voipwise. Settings: my.username @ sip.voipwise.com Transport: UDP Outgoing proxy: sip.voipwise.com Discover pub. address: checked Keep-alive: auto Keep-alive frequency: 0 Authentication tab blank Autodetect STUN: unchecked STUN server: stun.voipwise.com STUN port: 3478. Any thoughts? If there's something obiously and stupidly wrong, I'm not seeing it.