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.

  1. Internet Outage
    • All phones will go down.
  2. Power Outage
    • All phones will go down.
  3. 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.
  4. Phone Hardware
    • Like computers phones can have random issues and need to be turned off and back on to correct itself.
  5. Audian Network
    • No network is perfect but on the rare occasions the issue lies on back end.


Troubleshooting Flow: