Palm Treo 270 User Manual page 98

To dial another number while a call is in progress:
1. From the Active Call view, repeatedly press PhoneBook
use.
Tip: You can also tap the Speed Dial, Dial Pad, Contacts, or Call History view icons.
2. Dial the number.
3. When the confirmation message appears, hold Option
To switch between two active calls, do any of the following:
Tap the call status line of the call you want to make active.
Press the button on the headset (if it is attached).
To use 3-way calling:
1. Answer or place two calls.
2. Tap 3-way Call to join the two calls.
3. Tap Cancel 3-way to return to the previous active call and to place the other call on hold, or
tap Hang Up to end both calls.
Note: When a 3-way call is active and the headset is attached, pressing the button on the
headset places the second call on hold.
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1st call status
2nd call status
Tap
3-way
Call
to access the view you want to
and press Return
Application-Specific Tasks
for Yes.