BenQ M300 - Manual (Page 49)

Using Your Phone 35
Call Waiting*
If there is an incoming call while you are on the phone, a tone will
sound through the earpiece and the display will show that a second call
is currently waiting. You can handle the waiting call and currently active
call in the following ways:
1. Answer the waiting call: Press the currently active call will
automatically be placed on hold. However, if there is already another
call on hold, a menu will appear on the display allowing you to select
a call to end and then answer the waiting call.
2. Reject the waiting call: Press or (End). Pressing
(End) will immediately reject the waiting call; pressing will bring
up a menu on the display that you can use to select a call to end.
In-Call Menu
If you press during a call, it will bring up the call menu. Press
to scroll to the desired item (press to scroll through the menu page
by page) and then press to enter that item; press (Back) to
return to the pervious menu; press to return directly to the call
menu.
8
Items marked with an asterisk (*) depend on network support and
may require a subscription.
Phone Book
Accesses data in the Phone Book. For details, see page 26, "Phone
Book".