1081 Multiline Hunt Group - Uniform Call Distribution Line Hunting

The Uniform Call Distribution line hunting arrangement allows for equal
distribution of incoming calls to all terminal numbers within a hunt group.

Generic Name of ONA Service
 	Product Name					BSE or CNS
===========================================================================
Multiline Hunt Group - Uniform Call Distribution Line Hunting
	AM - Uniform Call Distribution			BSE
	BA - Uniform Call Distribution			BSE 
	NX - Queuing/UCD				BSE or CNS
	PB - Uniform Call Distribution Arrangement	BSE 
	SWB - Uniform Call Distribution Arrangement	BSE 
	USW - Uniform Call Distribution			BSE 

FEATURE OPERATION:
1. When an incoming call (to the Directory Number of the multiline hunt group) 
   is received, hunting should begin at the start-hunt terminal and proceed 
   as a circular hunt.

2. When an idle terminal is found, the call should be completed, and immediately
   (even before another call attempts to terminate) a new circular hunt should
   begin for an idle terminal.  This hunt should begin at the terminal number
   after the one that the call was just completed.  When an idle terminal is 
   found, the hunt should stop and the idle terminal number should be stored as
   the start-hunt terminal for the next incoming call to the Directory Number 
   (DN) of the multiline hunt group (MLHG).  If no idle terminal is found 
   after a complete circular hunt is made, the stored start-hunt DN should be 
   the DN of the last completed call.

3. If an incoming call is not to the DN of the MLHG but to a DN associated with 
   one of the terminals of the MLHG instead, the start-hunt terminal as defined
   above for Uniform Call Distribution should not be used.  Instead, the 
   incoming call should be directed to the terminal associated with the called 
   DN directly.  If the called DN terminal is busy, a circular hunt should begin
   at the called DN terminal and continue until an idle terminal is found.  If 
   none is found, the incoming call should be given busy treatment.  In either 
   case, the next incoming call to the MLHG DN uses a start-hunt number as 
   determined by 2 above, which is unaffected by the call to a terminal's 
   direct DN.

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

Switch Type			1A ESS	5ESS	DMS-100	
Earliest Generic Release	1AE8A	5E2(2)	BCS25	

2. In the 1A ESS and 5ESS switches, Call Waiting - Terminating and series
   completion cannot be assigned to lines with the UCD feature.  In the DMS-100,
   the Universal Call Distribution feature is not compatible with Automatic Call
   Back, Automatic Recall, Automatic Call Distribution, Bridged Night Number,
   Calling Number Delivery, Calling Number Delivery Blocking, Distributed Line
   Hunting, Distributed Number Hunting, Multiline Hunting, Preferential Hunting
   and Stop Hunt.

3. References:  
   o LSSGR (TR-TSY-000064), FSD 01-02-0802, Multiline Hunt Service, Issue 2, 
     July 1987, Module TR-TSY-000521, see "uniform call distribution hunting."  

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