When a call comes into an extension, it should ring and the extension light should flash. If it does not ring or flash, it may be because:
- The phone has been placed on Do Not Disturb mode (DND). Using DND
- If the user name on the screen appears red instead of green, or there is no name on the screen, this indicates the phone is not registered. Ask a System Administrator to help with this.
Once the DND mode and/or registration have been corrected, the phone will ring normally, and the extension light will flash indicating an incoming call.