While in a call, press Transfer at the bottom of the phone screen, or press this physical phone button:
(located just above the voicemail button) and call the other party. When you hear the ring tone, you may hang up. This is a "cold" or "blind" transfer. This is our standard configuration.
If your phone has been optionally configured for a "warm" transfer, you may speak to the second party before pressing the Transfer button a second time to connect the call.
Optionally, you may "cold" transfer the call by pressing Blind at the bottom of the phone display screen.