Hi, I'm trying to use Asterisk as a SUA which would allow me to register on a SER running on the same machine and to send simple test messages through the CLI to another SUA located on another computer, registered on a SER running also on this other computer. I need the CLI because I have to work remotely. Is Asterisk the good choice? What kind of sip.conf and extensions.conf do I need? Are the sample files suitable? And how can I send simple messages to another SUA through the CLI? So far, I succeeded to register each Asterisk-SUA to his "own" SER, and I'm wondering how to communicate with the other SUAs. Thanks a lot for any help. Cyprien