Press *73 from the cell phone's main screen. The same code is used for residential phones. Press Send.. Wait to hear the confirmation beep and message to indicate that call forwarding has been canceled. Press #21# from the cell phone's main screen. For residential phones, push 73# or *73. Press the Send, Talk, or Receiver icon on your cell phone. Wait to hear a confirmation message. For residential customers, wait to hear two tones to indicate call forwarding has been canceled.