AT&T MERLIN LEGEND Communications System PBX System Planning Manual page 99

Trunks
Telephones
3-44 Trunk Assignment
Planning Form instructions - Continued
4 . Identify the equipment at each station. (Refer to the Floor Plan.)
Check the box that describes the telephone, console model, or type of
tip/ring equipment.
Check the box under "Adjuncts" that describes the adjuncts at the
station.
Note: Checking the "Data Terminal" box is informational only. See the
Data Guide.
There are seven kinds of line buttons you can assign to telephones or adjuncts
connected to an MLX telephone using an MFM (excluding QCC operator
positions):
System Access Ring button-used to make and receive inside and outside
calls. When used to make inside calls, the called person hears one long ring
to indicate an inside call. When used to make outside calls, the user selects
an outside trunk by dialing either the code for Automatic Route Selection
(ARS) or the dial-out code for a trunk pool. The system automatically assigns
this type of button to all telephones.
System Access Voice button-used to make and receive inside and
outside calls. When used to make inside calls, the called person hears the
caller's voice. When used to make outside calls, the user selects an outside
trunk by dialing either the code for ARS or the dial-out code for a trunk pool.
The system automatically assigns this type of button to all multiline
telephones and MFMs.
System Access Originate Only button-used only to make inside and
outside calls; calls are not received on this button. The purpose of this button
is to ensure that the user always has a button available to make calls. The
button can be set to either voice or ring operation for inside calls. To make
outside calls, the user selects an outside trunk by dialing either the code for
ARS or the dial-out code for a trunk pool.
Shared System Access button-used to allow a group of users to answer
each other's calls, join conversations, or make or receive calls on each
other's Voice or Ring button. The Shared button is used the same way as the
type of button being shared (Voice or Ring).
Personal Line button-used to dedicate an outside trunk for use by
particular telephones in the system. The Personal Line button is used to
make and receive only outside calls. To make an outside call, the user dials
the area code and telephone number; the ARS code is not needed. The trunk
cannot be assigned to a trunk pool, but it can appear on more than one
teleohone (up to a maximum of 64 stations).