NEAX2400 IPX ISDN Features and Specifications
Page 98 NDA-24311, Issue 1
O-24 Outgoing Trunk Queuing - PRI
O-24 Outgoing Trunk Queuing - PRI
General Description
This feature allows a user, upon encountering an ISDN trunk busy sig n al, to di a l a specified access code and enter
a first-in, first-out queue. As soon as an ISDN outgo ing trunk becomes ava ilable, sta tions in the q ueue are call ed
back on a first-come, first-served basis.
Operating Procedure
1. Dial the ISDN trunk access code; receive busy tone.
2. Press the switchhook; receive special dial tone.
3. Dial the OUTGOING TRUNK QUEUING access code and receive service set tone.
4. Replace the handset.
When an ISDN trunk becomes available, a station in the queue is called back.
To cancel
1. Lift the handset; receive dial tone.
2. Dial the OUTGOING TRUNK QUEUING cancel code; receive service set tone.
Service Conditions
1. Once an OUTGOING TRUNK becomes available, the user’s station rings for up to 30 seconds. If not
answered within that time, the station automatically drops from the queue.
2. When this feature is used in conjunction with SPEED CALLING - SYSTEM [S-3], or LEAST COST
ROUTING - 3/6-DIGIT [L-5] where a sender is involved, the sender automatically dials out the called
subscriber number when the handset is lifted.
3. If the user wishes to remove himself from the queue prior to being rung, the specified cancellation code
must be dialed.
4. Individual stations can initiate only one outgoing trunk queue at a time. Subsequent attempts result in a
reorder tone.
5. Stations may be restricted from using this feature in CLASS OF SERVICE - INDIVIDUAL [C-15].
6. This feature is not available for an ATTENDANT CONSOLE [A-3].
7. The maximum number of simultaneous OUTGOING TRUNK QUEUES per system is 256.
8. CALL PICKUP - GROUP [C-7] cannot be used to answer a call directed to another station using the
OUTGOING TRUNK QUEUING feature.
9. OUTGOING TRUNK QUEUING is common to all Central Office type groups (DDD, etc.) in the system.
10. OUTGOING TRUNK QUEUING call back returns to the originating station, not the CALL
FORWARDING - BUSY LINE [C-2], CALL FORWARDING - DON’T ANSWER [C-3], CALL
FORWARDING - ALL CALLS [C-5] terminating station.