To use 3-Way Calling:

1. When you are on an existing call, momentarily press the Flash button or switch hook. This places the first person on hold.
2. Upon hearing the recall dial tone (three tones and then a dial tone), dial the telephone number of the second person.
3. Press the Flash button or switch hook again, and all people will be joined on the call (if you press the Flash button or switch hook before completing dialing of the second person, you’ll be reconnected with the first party).  

Notes: If either of the called person hang up, the call can continues with the remaining two.
If the person who initiated the call hangs up during a 3-Way call, the call will be disconnected.
When you are on a 3-way call, your Call Waiting and Call Waiting Caller ID will not function.
Additional incoming calls will go directly to your Voice Mail (or get a busy signal if you don’t have Voice Mail service).