[Serusers] pinging my server

Hi, I'm very new to ser, and am trying to make sure that my server is alive. Unfortunately, I am behind a firewall and installing remotely on another computer. I have gotten ser installed, but can't tell if it is working correctly. When I try to ping the server using sipsak, this is what I get: sipsak -T -s sip:user1@172.18.1.100 warning: IP extract from warning activated to be more informational 0: 172.18.1.100 (0.219 ms) SIP/2.0 483 Too Many Hops 1: 172.18.1.100 (7.897 ms) SIP/2.0 478 Unresolveable destination (478/TM) without Contact header I am doing this from the computer that I installed the server on, because this is the only access I have that isn't behind a firewall. The serctl moni tool seems to indicate that the server is functioning, but I'm having trouble telling. Also, is there a tool that I can use (i.e. Kphone), to set up two clients on the same machine as the server and test if I can make calls? I would need a command line interface to the tool. thanks, Cory