Here are some tips if your phone is not ringing:
- Is your ringer volume on?
- Is your phone plugged in?
- Is your phone registered and active?
- Do you see a light blinking when an incoming call arrives?
- Have you checked or changed your ringer sound effect?
- Do you have the right incoming phone number and extension?
- Have you tried rebooting your phone by unplugging it and plugging it back in?