All Calls (CF/A) To set Call Forward – Immediate at a forwarding station: 1. Pick up the handset or press the Speaker key. 2. Dial the Call Forward – Immediate Service Code To cancel Call Forward – Immediate at a forwarding station: 1. Pick up the handset or press the Speaker key. 2. Dial the Call Forward – Immediate Service Code (default: 741). For AVAYA, NORSTAR, NEC, SAMSUNG, MITEL, PANASONIC, TOSHIBA telephone systems and voicemail call (866)206-2316 or email MasterTelephone@gmail.com