1089 Three Way Call Transfer

Three Way Call Transfer provides the ESP who is on an established call with the
ability to add another party to perform a three way conference.  After 
establishing the conference, the ESP may drop their connection without 
disconnecting the remaining two parties.  This action allows the ESP to 
transfer specific calls and free their line to initiate or receive another call.

Generic Name of ONA Service 	Product Name			BSE or CNS
===========================================================================
Three Way Call Transfer		AM - Three Way Call Transfer 	BSE 
                		BA - Three-Way Call Transfer 	BSE 
                		BS - User Transfer		BSE or CNS
                		PB - Call Transfer		BSE 
                		USW - Call Transfer		BSE 

FEATURE OPERATION:
1. To transfer an established call: Advise first party, then depress the 
   receiver button (recall dial tone is heard), dial number of the third party 
   (hear ringing), announce the call, depress the receiver button to add on the
   first party, then hang up.

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*	5E5*	BCS29	

   * Note that on the 1A ESS and 5ESS, this is made available by placing 
     customers in a Centrex common block.

2. An additional option for the ESP with Centrex is to allow calls to be
   transferred outside of the Centrex environment.  This optional feature is
   known as DID/DOD Transfer.

3. Call Forwarding Variable is compatible with Three Way Call Transfer service.

4. Call Hold and Three Way Call Transfer can be assigned to the same line.

5. Call Pickup and Three Way Call Transfer can be assigned to the same line.

6. Speed Calling and Three Way Call Transfer can be assigned to the same line.

7. Three Way Call Transfer may be assigned to either or both parties on a
   Two-Party Line.

8. Three Way Call Transfer may not be provided on the following lines:
   o Coin Lines
   o Denied Originating Lines
   o Four and Eight Party Lines
   o PBX Lines
   o Hotel/Motel Calls Routed to TSPS

9. References:
   o TR-TSY-000064 - FSD 01-02-1305, Add-On Transfer and Conference Calling 
     Features, Revision 1, August 1988, Module TR-TSY-000522.

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