1067 DID Trunk Queuing

DID Trunk Queuing will permit calls directed to an ESP's All Trunks Busy DID 
Trunk Group to be held for delivery when a DID trunk becomes idle.  This would 
allow the ESP to answer calls from clients that would otherwise have received 
a busy signal.  

Generic Name of ONA Service
 	Product Name					BSE or CNS
===========================================================================
DID Trunk Queuing		
	BA - DID Trunk Queuing				BSE
	NX - Queuing/UCD				BSE or CNS
	PB - DID Trunk Queuing				BSE
	USW - DID Trunk Queuing and Basic Announcement	BSE 

FEATURE OPERATION:
DID Trunk Queuing allows ESPs to receive and hold calls directed to their
busy DID trunk group.  This service will place these calls in a queue, to
be held until a trunk between the central office and the ESP is available.
When a trunk becomes available, a call will be released from the queue and
connected to the idle trunk.  Calls held in the queue will hear ringing unless
the ESP has ordered that a delay announcement be played to the caller.

TECHNOLOGICAL AND FEATURE INTERACTION CONSIDERATIONS:
1. This feature is available in the following central office switches:

Switch Type			1A ESS
Earliest Generic Release	1AE8A

2. Calls placed in the queue are delivered on a "first in-first out" basis.

3. The number of calls to be held in queue at any one time is established by
   the ESP at the time the service is ordered.

4. A maximum of four delay announcements is possible.

5. Each delay announcement may vary in length from three to 24 seconds.

6. References:
  o See LSSGR (TR-TSY-000064) FSD 01-02-0802, Multiline Hunt Group Service, 
    Issue 2, July 1987, Module TR-TSY-000521, Uniform Call Distribution Hunting.

This service, if offered as a BSE, is associated with the Circuit Switched
Trunk basic serving arrangement.
