Problem: outbound call is successful for about 20 seconds of conversation, then voice disappear both sides and eventually falls with Hangup. Why could be that?
Environment: here is a FreePBX 2.10 on Asterisk 1.8 (compiled) on CentOS 6.3 on NATted remote machine. Very tested installation but in no-NAT environments.
Machine responds on a public IP without any kind of firewall.
Extension is set has “nat=yes” and system set as “Public IP” and “nat=yes”. Trunk is a voip line from provider.
Thanks in advance.