1064 Calling Directory Number Delivery - via ICLID

Calling Directory Number Delivery via Calling Number Delivery (CND)
(CLASS) allows the subscriber to receive the telephone number of the caller 
prior to answering the call.

When Calling Number Delivery (CND) is assigned to the subscriber's line,
the directory number of the calling party, the time of the call and the date
are sent to, and displayed on, the called party's Customer Premises Equipment
(CPE) during the first long silent interval of the ringing cycle (between
the first and second rings).  If the calling party is outside the area in
which the service works, the called party's CPE will receive an "O" which in
most cases is displayed as "Out of Area" (actual display is the function
of the CPE used).

Generic Name of ONA Service
 	Product Name				 BSE or CNS
===========================================================================
Calling Directory Number Delivery - via ICLID
	BA - Caller ID				 BSE 
       	BS - Caller ID			 	 BSE or CNS
	NX - Caller ID				 CNS
       	PB - Caller ID				 BSE
       	USW - Caller Identification - Number	 BSE

FEATURE OPERATION:
The customer must contact the telephone company to have the Calling Directory 
Number Delivery service activated.  Once the translation changes have been made
to the customer's line and the customer has installed the appropriate CPE, the 
calling number, date and time of the call is automatically transmitted to the 
customer's CPE.  If the service is offered on a usage-sensitive basis, the 
customer has the option of turning the display device on and off by using the 
service access codes *65 or 1165 for activation and *85 or 1185 for 
deactivation.  If the service is offered on a flat-rate basis, the display 
device cannot be turned on and off using the access codes.

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	1AE10*	5E5	BCS28	

NOTE: * Available on intraoffice basis with generic 1AE9.

2. The serving central office switch must be equipped with the appropriate
   CLASS Calling Number Delivery software and hardware.  In order for
   this service to work on an interoffice basis, both the originating and
   terminating switches must be equipped with the CLASS and the Common
   Channel Signaling (CCS) SS7 software and hardware and the interoffice 
   trunks must be converted to SS7.

3. This service is a "line" service and therefore cannot be assigned to
   subscribers with trunk terminations (i.e., PBX with DID).  This service
   is also unavailable to multiparty lines, coin terminating and 
   1A ESS remote switching system (RSS) lines.  This service requires on-hook
   transmission, therefore there may be instances (MFT, Channel Banks)
   where this service may not work.

4. The subscriber must have a station set or a display device adjunct to the
   station set capable of receiving and displaying the calling directory
   number.  The subscriber is responsible for the purchase and installation
   of this display device.

5. If the subscriber answers the telephone during the first ringing interval,
   the calling directory number will not be displayed at the CPE.

6. References: 
   o LSSGR (TR-TSY-000064), FSD 01-02-1051, Issue 2, July 1987, Module
     TR-TSY-000521.
   o TR-TSY-000031, CLASS Feature: Calling Number Delivery, 
     FSD 01-02-1051, Issue 3, June 1990.  
   o Also see TR-TSY-000030, SPCS Customer Premises Equipment Data
     Interface, Issue 1, November 1988.

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