I’ve got a freepbx 13 box at a client site and they want to have remote extensions at another site thru a site-to-site vpn tunnel thru watchguard firewalls at both sites, which I don’t manage. The remote phones are registering, can make a call, but the call has no audio. I have added the remote lan to asterisk sip settings, i added the remote lan to trusted in the responsive firewall. Is there anything else I need to setup on the pbx and/or phones?
I guess adding the remote lan to asterisk sip settings fixed it.