Layer 1 Troubleshooting Checklist
PolyCom VVX 301
clienttraining@granitenet.com  |  866.847.1500  |        Granite Telecommunications
• Is “Do Not Disturb” on?
If the site reports there is no audible ringing on the phone, they may have 
“Do Not Disturb” enabled. To enable or disable “Do Not Disturb”, press 
the home button and use the navigation keys to go over to “DND”. Press 
the middle navigation key to select. The phone is now in “Do Not Dis-
turb” mode and the “Do Not Disturb” icon will be seen in the top right 
corner. Follow the same steps to disable.
• Has a reboot of the phone been done? If not, please reboot.
To reboot a the phone press 
and hold 1, 0, and 3 on the 
phone at the same time for 
three seconds
• Does the site have Internet access? Are other devices connected
to the same Internet working?
• What is shown on the screen of the phone?
• Does the phone have power?
If the power is not on, please have the site confirm that the connection is POE (Power Over 
Ethernet). If they are not using POE, please confirm that the power brick is plugged in.