1084 Selective Call Forwarding

Selective Call Forwarding (CLASS) allows the subscriber to specify a list 
of telephone numbers that will be forwarded to a remote station.  When a call 
is received from one of the numbers on the list, the call will automatically 
be forwarded to the designated station.  When a call is received from a number 
that is not on the list, the call will be terminated to the called party's line.

Generic Name of ONA Service
 	Product Name			BSE or CNS
===========================================================================
Selective Call Forwarding
	BA - Select Forward		CNS
        BS - Preferred Call Forwarding	CNS
       	PB - Select Call Forwarding	CNS or BSE
       	SWB - Selective Call Forwarding	CNS
       	USW - Selective Call Forwarding	CNS

FEATURE OPERATION:
The customer must contact the telephone company to initiate Selective Call 
Forwarding service.  A service order is required.  The customer initiates 
control of the Selective Call Forwarding screening list contents as well as 
activation and deactivation of the service by dialing access codes as described
below.  Once the appropriate translations have been made to the customer's line
the customer may activate, deactivate and/or use the service as follows.  
(Note: Prior to the 1A ESS 1AE10.2 generic, it was necessary for the 1A ESS 
Selective Call Forwarding customers to also subscribe to Call Forwarding 
Variable in order to activate the service.)

1. 1A ESS (Generic 1AE10.02 and later):  
   To activate the Selective Call Forwarding service, the customer must go 
   off-hook and dial *63 (1163 for rotary dial).  The customer will then 
   receive an announcement providing the following information:
   - The name of the service.
   - The telephone number the calls will be forwarded to.
   - The service is now active.
   - The number of entries on the list.
   - The instructions for creating/adding to the list, removing subscribers
     entries from the list, reviewing the list.

   To deactivate the service, the customer must go off-hook and dial *83 (1183
   for rotary dial).  The customer will then receive an announcement
   providing the following information:
   - The name of the service.
   - The service is now off.
   - The number of entries on the list.
   - The instructions for removing any subscriber list entry, removing all
     subscriber entered numbers.

2. 5ESS and DMS-100:  To activate or deactivate the Selective Call Forwarding
   service, the customer must go off-hook and dial either *63 or *83 (1163 or
   1183 for rotary dial).  Once either access code has been successfully
   entered, the customer should receive an announcement providing the following
   information:
   - The name of the service.
   - The telephone number the calls will be forwarded to.
   - The status of the service (active or inactive).
   - The number of entries on the list.
   - The instructions for creating/adding to the list, removing, reviewing the 
     list, changing of service status (active to inactive, inactive to active).

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*	5E6	BCS31**	

   NOTE: * Available on an intraoffice basis with 1AE9.
   ** References to switching system generics that have not yet been released by
   the vendors are based on our current information about which features are 
   planned for inclusion in those generic releases.  If the vendors change the 
   availability of any features for future generic releases that are referenced
   in this document, the availability of some services may be affected.

2. The maximum directory number list size is pre-determined by the Local 
   Exchange Company on a Company basis and can range from 2 to 31.

3. The serving central office switch must be equipped with the appropriate CLASS
   Selective Call Forwarding 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 Common Channel Signaling (CCS) 
   SS7 software and hardware and the interoffice trunks must be converted to 
   SS7.  The remote directory number ("forward to" number) does not have to be 
   in a switch in the CLASS Calling Area or in a switch equipped with CLASS or 
   SS7.

4. 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 customers with the following types of lines: multiparty,
   hotel/motel, coin and coinless public, 1A ESS remote switching system lines 
   (RSS), and Centrex attendant with console.  

5. If the subscriber is served from a 1A ESS Generic 1AE10.02 and later switch, 
   the subscriber no longer needs to have Call Forwarding Variable service in 
   order for Selective Call Forwarding to work.  However, even though the 
   subscriber may have both Selective Call Forwarding (SCF) and Call Forwarding
   Variable (CFV) assigned to their line, they CANNOT have both services active
   at the same time.  With the 1A ESS 1AE10.03 generic, the subscriber can have
   SCF and CFV services activated at the same time, if the Local Exchange 
   Company equips their central offices accordingly.

6. References:
   o LSSGR (TR-TSY-000064), FSD 01-02-1410, Issue 2, July 1987, 
     Module TR-TSY-000522.
   o TR-TSY-000217 CLASS Feature: Selective Call Forwarding, FSD 01-02-1410,
     Issue 2, November 1988.  
   o Also see TR-TSY-000220, CLASS Feature: Screen List Editing, Issue 2, 
     April 1989.

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