I have a FreePBX VOIP system that works fine except that I can't use a VOIP app on my Iphone from outside the firewall (It works fine if I use it inside the firewall). I can hear the other person but they can't hear me.
The router and firewall is a Cisco RV320.
I have set IP & MAC Binding for the FreePBX to 192.168.176.195 I have forwarded port 5060 and 10.000-20.000 to 192.168.176.195 On the Firewall I have opened port 5060 and 10.000 - 20.000 to 192.168.176.195
I've tried enable and disable SPI and SIP alg
Any one have any idea of what can be wrong or if I have forgoten something!?
I'm not sure where to post this, I hope it came write!