Dial from extension works, AMI Originate One Way Sound

[davesem]

Not sure if this belongs here or the Asterisk forums.
If I dial (microsip) an outside line on our Trunk it connects we both side can speak/hear.
If I use the following dialplan, ami action we get connected and the outside line can hear the local extension but not the other way around.

Dialplan:

exten => ami_testparam2,1,Answer()
same => n,NoOp(testparm=‘${testparm}’, testparm2=‘${testparm2}’**)
same => n,Dial(Local/6006@from-internal)
same => NoOp(**********************************************************************)
same => n,Hangup()

AMI Command:
Action:Originate
Channel:PJSIP/1XXXXXXXXXX@DevTrunk
Context:from-internal
Exten:ami_testparam2
Priority:1
Variable:testparm=555|testparm2=556

I’ve spent a couple days looking and cli debug output and pjsip logging but don’t know what to try from here.
Any suggestions on where I should start looking would be appreciated.

[lgaetz (Lorne Gaetz)]

This is a symptom of your PBX being behind a NAT router without the full RTP port range being actively forwarded. SIP Port Forwarding - #3 by lgaetz

[davesem]

Thanks for the link, the simple one line test is great for validating!
channel originate local/xxxxxxxxxx@from-internal application echo