No audio in conference from external call

English Installation/Configuration
1

Hello,

I have a wazo 25 server installed in a virtual machine, serving for the conference. This virtual machine works without any problems on a dedicated server.

I want to open it out of the home network for testing. I have activated all the necessary ports 80,443, 5060, 10000-20000 from the router and even activated DMZ. There is no problem over the local ip, but users accessing from the external ip can enter the room, but they cannot speak or hear.

When I check with sngrep on the server, there is rtp traffic but via local ip I think.

I set these in the SIP template I use.

force_rport yes

rtp_symmetric yes

rewrite_contact yes

From Wazo ui panel, I also set these for udp in PJSIP Transportation settings.

external_media_address

external_signaling_address

local_net

However, the problem still persists.

Thanks in advance for your help.

2

Hello,

Do you have a STUN/TURN server ?

3

On the firewall, did you open 10000-20000 UDP?
AFAIK, you don’t need to open 80/443 for SIP phones.
Assuming that your Wazo server is behind a NAT (i.e. it has a private IP address that is different from its public IP address), make sure that external_media_address and external_signaling_address contain the public IP address of the Wazo Platform server. Also make sure that the local_net looks like 192.168.0.0/24 and that it covers only the local IP address of the server and not the public IP address.

If it still does not work, you’ll need to share a network capture with sngrep to diagnose the issue.