If you're not receiving calls, callers are not getting through (e.g., fast busy signal, invalid number announcement, etc.) or they are getting an unknown party, this info may help.
To turn off Call Forwarding (Immediate or Conditional), dial *73 then press Send.
If you don't have your device or *73 or *920 doesn't work, Call Forwarding can be turned off via My Verizon.
If *73 doesn't work you may try *920 to turn off all Call Forwarding.