Hi guys,
We've just noticed that internal calls are dropping when not answered instead of going to Voicemail and it seems to be isolated to just 1 of our 7 offices. If we call the same number from a mobile phone the voicemail works fine.
We are running a Hybrid Skype for Business on prem/Exchange Online environment
Handsets are Polycom VVX500's
Each office has its own provisioning server
Thanks in advance for the assistance.