Hi everyone in the gotspeech com. Me and other people are triying to find out how is the SIP configuration to stablish a connection between Asterisk and MSS2007. I tested my application with a softphone and it works very well but i need to call from a physical phone over a VoIP network, and asterisk is in the middle so i can't remove it. The idea is something like this VoIP>>Asterisk>>MSS2007.