We are having some issues with some extensions failing to receive incoming calls after what seems to be a random period of time.
We are using Snom370 phones and the phone itself says its registered OK with the PABX but in FreePBX it says
XXXX/XXXX (Unspecified) D Yes Yes A 0 UNKNOWN
The phone is able to make outbound calls but users receive ‘Service Unavailable’ when trying to make a call to this extension. The phone never loses its IP and you can always access the web interface ok.
If we jump on the phone and hit re-register it seems to fix the issue for a period of time before dropping off again.
This only seems to be happening on a small number, say 5-6 phones out of 100+ phones. The phones have all been provisioned the same and the extensions all created exactly the same.
Is anyone able to assist in where I start to resolve this issue. I’m happy to provide further information if required.
We are running FreePBX 2.11.0 22 and Asterisk 11.20.0, this is actually an Elastix box but their community forums seem pretty quiet so hoping you guys can help out.
Many Thanks in Advance