Audio problems

[eclipse2000]

Hi again,

Come across another problem which is audio related.
When on my local netowork i can use the system fine with phones, iphones and also the assistant. When going off site things dont go so well. Its the assistant and the iphone im having issues with. I can get the assistand to connect from a remote laptop fine, it connects, comes up in the right colum with all the extensions etc. I can even dial a number like my mobile and i will ring. The problem is audio. I cant hear anything from both ends. Its the same on the phone. It connects and i can see in the server that its online showing the IP address of the provider but again no audio.
Im missing something but im not sure what. Can you help.

Thanks
Paul

 

[leejor]

Are you making any changes to your phones so that they use STUN when used outside the local network?

 

[eclipse2000]

Yes i have entered the stun address, although in the manual is says to disable this at the server side if using a static IP address. I have tried both ways.

 

[leejor]

The most common "no incoming audio at remote extensions" causes are...

Not using STUN on the remote phone. (it ends up registering with a local IP +port)
Router/firewall blocking ports at the remote end. (try a different location/router and see if it works there)
Multiple devices using the same port number behind a remote router.

 

[eclipse2000]

Im getting no in or out audio.

 

[leejor]

Im getting no in or out audio.

In that case, you can add..

A possible issue with the router/firewall at the 3CX end.

 

[eclipse2000]

The static IP has been forwarded straight to the local IP on my LAN so the firewall on the router is not even doing anything at the moment. I can connect to the server using remote desktop using the static IP from a remote location.
I have even tried turning the windows server firewall off.

 

[d.martin]

I have the same problem, within the LAN, there is no problem, but when i tried to make call thru offsite or remotely, other end where the pbx server is located could not hear me, but i can hear the voice of the person from the side of the pbx server....below is the log i got during the said call session.... please help me on this,....


17:47:08.296 [MS105000] C:4.1: No RTP packets were received:remoteAddr=188.49.77.16:27234,extAddr=188.52.71.28:9006,localAddr=188.52.71.28:9006
17:47:07.812 [CM503008]: Call(4): Call is terminated
17:46:59.859 [CM503007]: Call(4): Device joined: sip:[email protected]:3986;rinstance=12dd14ece7b8568e
17:46:59.859 [CM503007]: Call(4): Device joined: sip:[email protected]:27197;transport=UDP
17:46:54.734 [CM505001]: Ext.100: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CXPhone 5.0.14900.0] PBX contact: [sip:[email protected]:5060]
17:46:54.734 [CM503002]: Call(4): Alerting sip:[email protected]:3986;rinstance=12dd14ece7b8568e
17:46:54.578 [CM503025]: Call(4): Calling Ext:Ext.100@[Dev:sip:[email protected]:3986;rinstance=12dd14ece7b8568e]
17:46:54.562 [CM503004]: Call(4): Route 1: Ext:Ext.100@[Dev:sip:[email protected]:3986;rinstance=12dd14ece7b8568e]
17:46:54.562 [CM503010]: Making route(s) to <sip:[email protected]:5060>
17:46:54.562 [CM505001]: Ext.101: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CXPhone 6.0.19548.0] PBX contact: [sip:[email protected]:5060]
17:46:54.562 [CM503001]: Call(4): Incoming call from Ext.101 to <sip:[email protected]:5060>

 

[eagle2]

Having one-way audio is usually firewall / NAT problem.
Check on 3CX server what is the address of the remote client (or debug with wireshark).

If not correct, try disabling STUN server (don't use it, neither proxy server), instead of this enable 'ALLOWSOURCEASOUTBOUND' parameter in 3X server. You need 3CX server Version 10 latest SP.

See also this post: http://www.3cx.com/forums/no-incoming-calls-19487.html (towards the end).

 

[d.martin]

Having one-way audio is usually firewall / NAT problem.
Check on 3CX server what is the address of the remote client (or debug with wireshark).

If not correct, try disabling STUN server (don't use it, neither proxy server), instead of this enable 'ALLOWSOURCEASOUTBOUND' parameter in 3X server. You need 3CX server Version 10 latest SP.

See also this post: http://www.3cx.com/forums/no-incoming-calls-19487.html (towards the end).

Hi,

Where can i find this 'ALLOWSOURCEASOUTBOUND' parameter in 3X server.

 

[eagle2]

In Settings | Advanced | Custom parameters

Have a look also at this doc: http://www.3cx.com/blog/docs/3cx-phone-system-parameters-table/

It is set to '1' by default in Version 10. If your STUN is erratic, I would advise you to disable it (STUN is not working correctly in symmetric NAT environments, SIP ALG enabled NATs, etc.).

Regards