BenQ S660C - Manual (Page 64)

50 Using Your Phone
Putting a Call on Hold*
1. When the only call is active:
a. Press (Hold) to hold this call.
b. Press to end this call.
2. When the only call is on hold:
a. Press (Unhold) to resume the call.
b. Press to end this call.
3. When there is an active call and a call on hold.
a. Press (Swap) to resume the call that is on hold, and
put the active call on hold.
b. Press to show on the display a list of calls that you
can end.
Making a Second Call*
Enter a phone number, or select one from the phone number or
call record, and then press
to dial it. The currently active call
will automatically be placed on hold. However, if there is already
one active call and another on hold, this action will fail.