Jose Miguel RiveraKeymaster
- October 24, 2019 at 3:59 pm
As I told you in the other post, I think this is related to your customer network configuration, maybe some kind of firewall policy that is blocking the invites send from the PBX to his network.
You may try to use OpenVPN to connect one of your customer’s phones for proving that is something wrong on his network. Just make sure the OpenVPN port is open on the customer and PBX side.0