@frankge973 wrote:
I've a well configured FreePbx installation. I created a new extension, to be registered from outside, I forwarded on router port SIP 5060 and RTP 10000-20000 only for request arriving from a specific IP for avoiding intrusions. I opened firewall Fail2Ban adding the external allowed IP and also on permit Asterisk field adding ExternalIP/255.255.255.0
The phone rings correctly but when I answer no audio on both sides.
What can be the problem?
May be that I have to enable STUN? In which way? Thanks
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