BenQ M300 - Manual (Page 48)

34 Using Your Phone
Operations During a Call
8
The following options marked with an asterisk (*) are dependent on
network support and may require a subscription.
Mute
Press (Mute) to turn off the microphone. The person on the
other end of the line will not be able to hear your voice. To restore the
microphone's function, press (Unmute).
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.