I want correct my previous posted sentences : "My guess is mediaproxy makes a test on the IPs (they are 192.168.147.2 and 192.168.147.3) and refuses to proxy the call." with "My guess is mediaproxy makes a test on the IPs (they are 192.168.123.168 and 192.168.123.10) and refuses to proxy the call." Does Anyone encounter this problem? could you share your opinion, with me?. Thanks. Orazio