NEAX2400 IPX ISDN Features and Specifications
Page 102 NDA-24311, Issue 1
O-28 Off-Hook Queuing - PRI
O-28 Off-Hook Queuing - PRIGeneral Description
This service allows a user encountering busy ISDN trunk to remain off-hook and aut omatically e nter a f irst-in, f irst-
out queue. As soon as an outgoing ISDN trunk becomes available, the switch connects the next call to this trunk.
Operating Procedure
1. Dial the OFF-HOOK QUEUING access code plus the number for ISDN trunks. When no trunks are
available, the caller automatically enters an available queue.
2. The caller receives service set tone.
3. When a trunk becomes available, the dialed number is automatically sent forward.
4. If the caller goes on-hook while in queue, the assigned queue slot is cleared.
Service Conditions
1. This feature is usually used in conjunction with LEAST COST ROUTING - 3/6-DIGIT - PRI [L-31].
2. Maximum 256 stations per system can use OFF-HOOK QUEUING simultaneously.
3. The queue slots are shared by OFF-HOOK QUEUING [O-7], OUTGOING TRUNK QUEUING [O-2],
PRI [O-24], INTER-OFFICE OFF-HOOK QUEUING [I-11], and - PRI [I-36].
4. If no queue slots are available, the user receives trunk busy signal.
5. Route class of the LCR can give the choice of the OFF-HOOK QUEUING.
6. CLASS OF SERVICE - INDIVIDUAL [C-15] is applied for each station. This class of service is differ ent
from the CLASS OF SERVICE for OUTGOING TRUNK QUEUING - PRI [O-24]. Both services are
mutually exclusive.
7. When automatic OUTGOING TRUNK QUEUING [O-2] is in service (system basis), OFF-HOOK
QUEUING service is not effective.
8. ACCOUNT CODE [A-18] and FORCED ACCOUNT CODE [F-7] information can be recorded on
STATION MESSAGE DETAIL RECORDING (SMDR) [S-10], when used in conjunction with OFF-
HOOK QUEUING - PRI.
9. The following connection patterns are available for this feature:
Station
to an ISDN trunk
Attendant
Attendant connecting a station
Attendant connecting a trunk