Caller ID Blocking

This feature prevents your telephone number from being sent to users of the Caller ID service. Blocking is available on a per call basis or per line basis. Per call blocking must be activated from your telephone. NDTC can add a per line block at your request.


To activate
  1. *67 (Rotary 1167)

To deactivate a per line block on a per call basis

  1. *82 (Rotary 1182)