AT&T MERLIN LEGEND Release 4.0 Feature Reference page 402

Feature Reference
Telephone Differences
Direct-Line Consoles
A Pool button cannot be assigned to a DLC. The DLC operator accesses pools
by dialing the pool dial-out code from an SA button or, on an MLX DLC with a
DSS, by pressing the DSS button associated with the pool dial-out code. Trunks
in pools cannot be assigned as personal lines (assigned to line buttons) on any
telephone except a DLC. In Release 3.1 and later systems, the system
administrator must allow the DLC extension to access those pool dial-out codes
that it needs, through system programming.
Queued Call Consoles
A Pool Status button is assigned as a fixed-feature button on a QCC and
provides the operator with the status of all the trunk pools (a maximum of 11).
The operator presses the Inspct button followed by the Pool Status button, and
the busy or available status of trunk pools is shown on the display. Pool buttons
cannot be assigned to a QCC, but a QCC operator can use pools to make
outgoing calls by selecting a Call button and dialing the ARS or pool dial-out
code. In Release 3.1 and later systems, the system administrator must allow the
QCC extension to access those pool dial-out codes that it needs, through
system programming. A QCC operator can be assigned to receive calls on
trunks assigned to pools.
Feature Interactions
Alarm
Auto Dial
Automatic
Maintenance Busy
Automatic Route
Selection
Callback
402
Pools
A trunk jack used for a maintenance alarm cannot be assigned to a
trunk pool.
Pool dial-out codes cannot be programmed on inside Auto Dial buttons.
A pool dial-out code can be programmed on an outside Auto Dial
button when a telephone number is also included. However, Pause
characters may be required before the telephone number, depending
on the local telephone company. Enter Pause characters by pressing
the Hold button.
To provide optimal performance, Automatic Maintenance Busy should
be enabled when a Hybrid/PBX system includes trunk pools.
ARS ensures appropriate and cost-effective use of trunk pools. ARS
and dial access to pools function independently from each other. If ARS
restrictions are programmed to allow access to a pool, the user may
seize a pool that the extension is not normally allowed to use with pool
dial access restrictions.
In Hybrid/PBX mode, Callback can be used to complete calls to outside
number only when all trunks are busy in the pool.