Capabilities - AT&T MERLIN LEGEND System Reference Manual

System Overview

Capabilities

Modes of Operation
Key Mode
Mode
Hybrid/PBX
The following system capabilities are described in this chapter:
modes of operation
data
network
system capacities
DS1 capabilities
The system is for customers in the 10 to 140-station range. It can be configured
to operate in one of three modes:
Key
Hybrid/PBX
Behind Switch
See "Modes of Operation" in Chapter 4 for a functional description of the modes.
In the Key mode, every line appears on a separate button on each multiline
telephone. The line buttons allow users to see activity on other telephones, join
conversations, make calls, and receive calls. Separate intercom buttons are
used to make and receive internal calls.
A Key system automatically assigns the first eight outside lines to all telephones.
Through system programming this arrangement can be customized to allow
more outside line appearances on telephones. Also, lines or groups of lines can
be assigned to selected groups of telephones or to individual telephones.
The Hybrid/PBX mode handles a large volume of calls and users and provides
the most flexibility of the three modes. The outside trunks can be grouped in
pools for shared use. in addition, outside trunks can be assigned to line buttons
on multiline telephones for users who need a personal line.
Users access inside lines and outside trunks via System Access buttons. To
make an outside call, the user enters a dial-out code, usually a 9, and the
system automatically selects an available trunk. The Automatic Route Selection
(ARS) feature determines which trunk should be used for each type of outgoing
call.
Incoming calls can be handled by either a direct-line console (DLC) or a queued
call console (QCC), or by a combination of both.
Capabilities 1-7