Extension trough tunnel without audio

[polako89 (Gabriel)]

hello!

I´m using Freepbx for almost two weeks now and everything works fine when using at the local LAN.
I´m trying to setup an extension to our new store, and I´m using a tunnel to make the connection.

The softphone (microsip) connects to freepbx, but without audio. I can call extensions and outside numbers, but the result is always the same, no audio for both sides.

Going trough the logs, I found this difference between the connections:

[2024-05-15 18:13:47] WARNING[25933] res_pjsip_pubsub.c: No registered publish handler for event presence from 122

The test:
First, I connected the extension on the same LAN but trough the tunnel, and everything works.

[2024-05-15 18:16:45] VERBOSE[20599] res_pjsip/pjsip_configuration.c: Endpoint 122 is now Reachable
[2024-05-15 18:16:45] VERBOSE[20599] res_pjsip/pjsip_options.c: Contact 122/sip:[email protected]:62032;ob is now Reachable. RTT: 2.679 msec

Second, using my mobile data plan, I connect outside the LAN, trough the Tunnel and the same extension show this warning.

46388 [2024-05-15 18:13:47] VERBOSE[20599] res_pjsip/pjsip_configuration.c: Endpoint 122 is now Reachable
46389 [2024-05-15 18:13:47] VERBOSE[20599] res_pjsip/pjsip_options.c: Contact 122/sip:[email protected]:49140;transport=udp is now Reachable. RTT: 114.954 msec
46390 [2024-05-15 18:13:47] WARNING[25933] res_pjsip_pubsub.c: No registered publish handler for event presence from 122

What am I missing?!
I already tried so many things and still it doesn´t work!

Any help is very much appreciated!

[joni1802 (Jonathan)]

Did you added the subnet of the VPN to the NAT settings as a local network (Settings > Asterisk SIP Settings > Local Networks)?

[polako89 (Gabriel)]

Thank you for your reply!

I’m using localto.net p2p tunnel, and the only thing it shows me is the address and port to connect.
Connecting to this address (br2.localto.net:XXXX) and running the server in the same machine as the Freepbx, the tunnel works fine, but I don’t have any information of IP and subnet from this tunneling.
I tried adding this address to the Local Networks area, but didn’t work.

I also bought and tried to make it work, the native VPN server buil it Freepbx, but had no success.
This is still an option.

EDIT: I don’t have a fixed public IP.

[joni1802 (Jonathan)]

When you connect to your VPN your device will get a local IP address from your VPN server. Take a look at your VPN server settings. You can also check the local IP address of your device when connected to the VPN server.