GrandStream GXP1610 No Audio over STUN

[Erick Moraes]

Hi everyone,
I need a help about a problem between 3CX App and IP phone.

I have some phone GrandStream GXP1610 and in calls, i no listen. I no listen between Phones.
Betwen Phones and APP 3CX i listen. Have comunication. But, between Phones no work.

Somebody have idea whats can be that?

 

[JohnS_3CX]

Hi Erick,

It depends on your setup type, can you please read the below and provide us with more information?

https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/

 

[Erick Moraes]

Ok @JohnS_3CX
Thank you for the feedback. Follow information:

• 3CX Version, Standard Annual 18 version 1880
• Server OS, e.g. Debian 9
• Is the 3CX Server Hosted and where? Google GCP
• IP Phone Make/Model/Firmware version, GrandStream GXP1610 firmware 1.0.7.13
• Provisioning Method: STUN
• Has the Firewall Checker passed: NO
• Are custom Phone Templates being used: NO

 

[Naveen | Cal4care]

Hello Erick Moraes,

The firewall checker must pass. Make sure the following ports are allowed. https://www.3cx.com/docs/manual/firewall-router-configuration/

And install 3CX SBC on the phone network then re-provision all the IP phones with SBC.
Please refer the link for more information. https://www.3cx.com/docs/3cx-tunnel-session-border-controller/

 

[JohnS_3CX]

If you have more than a couple of GXP phones, consider installing a 3CX SBC which should fix this problem for you.

 

[Erick Moraes]

Thank you everybody.
Problem solved.

 

[JohnS_3CX]

That's good to hear Erick, how did you solve it in the end?

 

[Erick Moraes]

I forgot enable the option PBX Delivers Audio .

 

[JohnS_3CX]

That should certainly help, but since you haven't mentioned anything about the rest of the points in the article, the possibility still remains that you might end up without audio at any given time in the future.

If you will keep STUN mode, make sure to follow the rest of the recommendations to in order to prevent that from happening.