I suppose you got a loop with 192.168.0.9 because you didn't filter the remote IP address in the Matching Patterns. Your first rule will match any INVITE including a call sent back from 192.168.0.9. Put the $addr in the first rule as the following. Matching Patterns $request = ^INVITE $addr = !192 ...

1. Brekeke Product Name and Version:3.5.3.0 2. Java version:6 3. OS type and the version:windows server 2012 4. UA (phone), gateway or other hardware/software involved:spa502g , soundwin s800 5. Your problem: I have problem for my dialplan if I put this dialplan : Matching Patterns $request ...