Instruction manual

Features
■ All ground-start trunks are assigned to the pool with the factory-set
extension number 890.
NOTE:
On initialization of a Release 1.0 system, all loop-start and ground-
start trunk programming reverts to loop-start. The ground-start pool
never has trunks assigned to it automatically, but must be
programmed after the ground-start ports are designated. In Release
1.1 and 2.0 (or later) systems, ground-start trunks are assigned to
the ground-start pool on initialization, except in a system strapped for
Key mode operation.
■ All Dial-in Tie trunks are assigned to the pool with the factory-set
extension number 891.
■ All Automatic-In Tie trunks are assigned to the pool with the factory-set
extension number of 892.
NOTE:
The factory setting for the type of trunk connected to a 400 LS/TTR, 800
GS/LS, 408 GS/LS-ATL, or 408 GS/LS-MLX module is loop-start. The
system does not automatically make pool assignments for loop-start,
ground-start, or tie trunks that are emulated by using a T1 facility. Each of
these types must be grouped into a pool through system programming.
The system can have a maximum of 11 pools. Each pool can be assigned to a
button on a maximum of 64 telephones. The number of trunks in each pool is
limited only by the number of trunks connected to the system. However, a trunk
can be assigned to only one pool.
Considerations and Constraints
The maximum number of Pool buttons that can be assigned to multiline
telephones—excluding Queued Call Consoles (QCCs)—is limited only by the
maximum number of pools allowed (11) and the number of buttons on the
telephone.
The number of trunks in each pool is limited only by the number of trunks
connected to the system. A trunk can be assigned to only one pool.
Each pool should contain the same type of trunks (for example, basic trunks,
WATS trunks, or FX trunks) because users cannot control the specific trunks
selected by the system. Ground-start and loop-start trunks of the same type (for
example, WATS trunks) can be mixed in the same pool. Direct Inward Dialing
(DID) trunks should not be put into pools; trunks used for Music-on-Hold or
maintenance alarms cannot be grouped into pools. Also, it is recommended
that Dial-In Tie trunks not be assigned to a pool if the pool is assigned to a
button on the telephone.
342 Pools