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44
Treo 680
Tips and tricks
Keyboard
0
Phone
0
TO: DO:
Lock the keyboard
Press
Option
+
Power/End
Unlock the keyboard
Press
Center
Adjust the brightness
Press
Option
+
P
;
press
Left
to decrease the
brightness or
Right
to increase it
TO: DO:
Turn speakerphone on and off during a
call
Select
to turn on speakerphone and
to turn
it off
Change volume during a call
Press the
Volume
button on the side of your Treo 680
Switch from the ringer to vibrate
Slide the
Ringer switch
to
Sound Off
Make a conference call
Make a second call, and then select
Check voicemail
Press and hold
1
Use the phone while out of the country
Contact AT&T Wireless to enable international voice
and data roaming