Motorola A925 - Manual (Page 45)

Calling Features - 45
Making Another Call While a Call is Active
You can make a second call while a call is active or on hold. You
can then switch between the two calls or join the calls in a
grouptalk.
Switching Between Calls
To switch between an active call and a call on hold, tap Switch . The
active call is put on hold and the call on hold becomes active.
Do This
1 While the first call is active or on hold, press
B .
The dialling keypad displays.
2 Tap the number you want to dial.
3 Press
B.
If the call succeeds, one call is active and one call is
on hold. The screen displays both calls: