i configured my asterisk server and freebpx 13 on Centos 7
I have only the problem when call from extension 1 to extension 2 because not hear nothing
If i call from my iphone to my voip number i have not problem
The same problem if i call from my voip number to my iphone, not hear nothing.
What can be? Maybe some port closed? or firewall block something?
I hope in some help