"Available" extension going to voicemail

[DNACommATL]

Recently, I have had a couple of users state that while their phones are in "Available" status calls will forward to voicemail without ringing the extension.

My first thought was the phone may have temporarily went to an "Unregistered" state. However, I can find nothing in the event log to show the phone unregistered then re-registered. I also set up a continuos ping to the IP addresses of the two devices and am not showing any missed pings.

I have swapped out endpoints for new devices. Also deleted and recreated the extensions. I have tested the connection from patch cable to patch cable and am not seeing any issues with cabling. I moved the phone to a different outlet in the office and tried different ports on the POE switch.

Has anyone else encountered this issue?

Running 64SCPRO on 15.5.3849.1

 

[mixig]

With Event lofg did you check Activity log?

 

[pact]

Double check they are not set to DND;

Both on the physical device (Seems unlikely if you've swapped out the end point) and in the console (Extensions -> Select Extension -> Click on Status).