Troubleshooting
Description:
Phone issue can be caused by many things but can be easily broken down into 5 categories. The most common are listed top to bottom.
Internet Outage
All phones will go down.
Power Outage
All phones will go down.
Local Network
Firewall: Settings on a firewall can block the phones from reaching out to the internet.
Router: Settings on the router like SIP ALG can cause phone features and registration to fail.
Phone Hardware
Like computers phones can have random issues and need to be turned off and back on to correct itself.
Audian Network
No network is perfect but on the rare occasions the issue lies on back end.
Articles:
Troubleshooting Flow: