We are having a problem when trying to use originate or AMI to make a
call. We have an Asterisk 22.214.171.124 server which uses a SIP provider to
call the PSTN. When dialing from IP phones everything works fine. When
you try making the call with originate, AMI or a call file then the
remote person can hear you but you cannot hear them. Why would it
behave differently when dialing from a phone?
The server is behind NAT and uses externaddr to set the external IP
(static). Anyone had any experience with this?
Here is my (edited) sip.conf entry: