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NDA-24305 CHAPTER 5
Page 123
Revision 1.0
OUTGOING TRUNK QUEUING-DELUXE-PRI
O-26 OUTGOING TRUNK QUEUING-DELUXE-PRI
1. General Description
This feature allows station users according to their Service Feature Class to queue for an outgoing ISDN trunk
when all call routes are busy. This feature allows specific routes to be queued in a timed interval depending on
the user’s Service Feature Class (SFC). If on-hook queuing is used, the system will send a Ringback Tone to the
station when a trunk becomes available. On or off-hook queuing may be assigned to stations within a tandem
network, as well as stations at main and satellite PBXs.
The system provides an off-hook queuing capability to Attendants and an optional priority queuing feature.
2. Operating Procedure
1. Outgoing trunk
The Busy Tone will be sent to the calling station, when no ISDN trunks are available.
The user presses the switchhook, and receives Special Dial Tone.
Dials the OUTGOING TRUNK QUEUING access code, receives the Service Set Tone and replaces the
handset.
To cancel on-hook queuing, the user must go off-hook and dial the OUTGOING TRUNK QUEUING
cancel code. User receives the Service Set Tone and replaces the handset.
If the calling party does not answer the ringback within thirty seconds, the call will be removed from queue.
2. Off-Hook trunk Queuing:
When off-hook queuing is used, the Service Set Tone will be sent to the calling station when no outgoing
ISDN trunks are available. The Service Set Tone indicates that the calling station has been placed in an off-
hook queue.
To cancel off-hook queuing from a station or tie line, the user merely goes on-hook.