Samsung SPH-A620ZSSXAR - Manual (Page 127)

Section 3: Using PCS Service Features
3A: PCS Service Features - The Basics
119
Making a Three-Way Call
With Three-Way Calling, you can talk to two people at the same
time. When using this feature, the normal airtime rates will be
charged for each of the two calls.
1. Enter a number you wish to call and press .
2. Once you have established the connection, press
for 3-Way Call.
3. Dial the second number and press .
4. When you’re connected to the second party, press
again to begin your three-way call.
If one of the people you called hangs up during your call, you
and the remaining caller stay connected. If you initiated the call
and are the first to hang up, all three callers are disconnected.
Tip: You can also begin a Three-Way Call by displaying a phone number
stored in your Internal Phone Book, Call History, or Messaging. To call the
third party, press
.
Note: Call Waiting and Three-Way Calling are not available while roaming
off the enhanced Sprint Nationwide PCS Network.