AT&T MERLIN LEGEND Release 3.1 System Manager's Manual page 101

Telephones
Line Buttons and Special Considerations in
Behind Switch Mode
When you program the system for Behind Switch mode, the system assigns a
single prime line, an ICOM Ring button, and an ICOM Voice button to each
multiline telephone. When you lift the telephone handset, the prime line is
selected automatically (even when it is busy) unless you have first selected a
different button. The prime line connects only to the host system and from the
host to an outside trunk. (For more information about local and host systems in
Behind Switch Mode, see "Modes of Operation" in Chapter 2.)
To call another person connected to the host system, you dial the host system
extension number assigned to that person. To access an outside trunk, you dial
the host system's dial-out code (usually a
available outside trunk.
In Behind Switch mode, ICOM buttons allow you to call other people connected
to the system but not necessarily to the host. When you press an ICOM button,
you reach an inside talk path and receive dial tone from the MERLIN LEGEND
Communications System (not from the host). You can then reach co-workers
without tying up a prime line.
You can use the following types of buttons to make and receive inside calls in
Behind Switch mode:
ICOM Ring. Use this button to make inside calls and to receive inside
calls and outside calls transferred from another extension. When you use
an ICOM Ring button to make an inside call, the telephone at the
destination extension rings with one burst to indicate an inside call.
ICOM Voice. Use this button to make inside calls and to receive inside
calls and outside calls transferred from another extension. When you use
an ICOM Voice button to make an inside call, the person at the
destination extension hears your voice on the speakerphone after a
single beep, rather than ringing. (If you are using an ICOM Voice button
to make a voice-announced call and the user at the destination extension
has a telephone that does not have a speakerphone or has disabled
voice announcements, the telephone rings just as if the call was made on
an ICOM Ring button.)
ICOM Originate Only. Use this button to make inside calls only. Neither
inside nor outside calls can be received on an ICOM Originate Only
button. This button ensures that you always have a button available to
make or transfer a call, establish a conference call, answer a call-waiting
call, or pick up a parked call. You can program the button for either voice
or ring operation.
), and the host system selects an
System Components
3–27