Every call i make from external network is being automatically ended after ~12 seconds. The connection is fine - a conversation can be made but for some reason cannot talk more then 12 seconds. Here is a short description of my network.
I have Asus RT-N66U which doesn’t support SIP-ALG. Also Cisco SPA3102 and a RaspberryPi which runs FreePBX 220.127.116.11beta2.2.
The router forwards UDP port 5800 to my raspberry successfully. I should mention that i have edited /etc/asterisk/rtp.conf and changed two lines:
The router is also setup to forward UDP ports from 11000 up to 20000 to freepbx.
As a client when not at home i use csipsimple. I tried changing the “RTP port” from -1 to 11000 but it doesn’t help.
csipsimple registers itself as extension 1000 which is configured in freepbx as being behind nat (nat is set to yes).
Under “Asterisk SIP Settings” i have:
IP Configuration Static IP
External IP 18.104.22.168
Local Networks 192.168.0.0 / 255.255.254.0
At the end here is a log from asterisk CLI: http://pastebin.com/6B7KKf2Z
I should add that when using the local network there is no such “limit”.