VitalPBX mobile app no audio outgoing call

VitalPBX
1

I suddenly have an issue yet nothing has changed with our network to cause this.

Any person in the PBX can initiate a call to a mobile VitalPBX and that conversation can be normal.

However any user who initiates a call on the mobile app. Weather internal or External. Audio doesn’t come through in either direction.

I have restarted the router. I have restarted the PBX System. Nothing changes.

I did DMZ the PBX and found no change.

2

Try deactivating the firewall inside vitalpbx, but just for the test.

If that helps, then check the blocked ips.

You use geoblock?