Phone-based Management 

Caller ID Blocking on/off *67/*68
To block the caller ID on outbound calls on a per call basis press *67 before dialing a number. Caller ID will be blocked on that call. If you would like caller ID to be displayed again before making the next call, press *68 or simply hang up and dial.

Call Return *69
To automatically call back the last incoming call, whether it was answered or not, press *69 and stay on the line.

Call Waiting Disable *70
To disable call waiting on a per call basis and send all subsequent new callers, while on the phone, to voicemail to one number access (ONA), simply dial *70 before making your call.