I’m running the most current SangomaOS distro (12.7.6-1910-1.sng7) with FreePBX 15.0.16.27 and Asterisk 16.6.2. All modules are up to date.
The issue I’m experiencing is that some, but not all, inbound calls will simply hang up on the person when a call comes in. If the user calls back it will usually answer and is fine. Outbound calls have no issues at all.
Handsets are Grandstream GXP2170’s and I have one softphone extension that I’ve been using for testing as well. The issue occurs regardless of endpoint device.
Firewall is pfsense and provider is Skeytel. I’ve got this same combination (firewall and provider… PBX may be slightly older version) at other locations with no issues so I don’t believe it is anything from that end.
I have snippets from call logs for both failed and successful calls which I will post in separate reply to keep things clean. Any guidance of where to look net or what I can try would be greatly appreciated.