1056 Call Waiting - Cancel

Cancel Call Waiting allows a subscriber with the Call Waiting feature to
inhibit reception of the Call Waiting Tone for the duration of a single
call.  This prevents interruption of data traffic or interruption 
during an important telephone call.

Generic Name of ONA Service 	Product Name			BSE or CNS
===========================================================================
Call Waiting - Cancel		AM - Call Waiting		CNS
                 		BA - Tone Block			CNS
                 		BS - Call Waiting		CNS
                 		NX - Cancel Call Waiting	CNS or BSE 
                 		PB - Call Waiting		CNS
                 		SWB - Cancel Call Waiting	CNS
                 		USW - Call Waiting		CNS

FEATURE OPERATION:
1. When a subscriber with the Call Waiting Feature wishes to cancel the
   Call Waiting feature during the call, they must depress the receiver 
   button, listen for dial tone, and dial Star (*) plus 70 for touchtone 
   (DTMF) phones or dial 1170 for rotary dial (DP) phones (Cancel Call 
   Waiting Code) for a POTS line or a Business Group line.  After dialing 
   the code, the subscriber listens for confirmation tone and is then
   automatically reconnected to the call in progress.  The Call Waiting 
   feature has then been deactivated and no interruptions are allowed during 
   the call.  

2. When a subscriber with the Call Waiting Feature wishes to cancel the Call
   Waiting Feature prior to making a call, they must lift the receiver,
   listen for dial tone, and dial Star (*) plus 70 for touchtone (DTMF)
   phones or dial 1170 for rotary (DP) phones (Cancel Call Waiting Code) 
   for a POTS line or a Business Group line.  After dialing the code, the 
   subscriber listens for confirmation tone followed by dial tone.  The Call 
   Waiting Feature has then been deactivated and no interruptions are allowed 
   during the call.

3. Call Waiting will be re-established when the call is terminated.

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)	BCS24	

2. Call Forwarding Variable is compatible with Call Waiting and Cancel Call
   Waiting service.

3. Call Hold and Call Waiting with the Cancel option can be assigned to the
   same line.

4. Call Pickup and Call Waiting with the Cancel option can be assigned to the
   same line.

5. Speed Calling and Call Waiting with the Cancel option can be assigned to
   the same line.

6. Call Waiting with the Cancel option may be assigned to either or both
   parties on a Two-Party Line.

7. Cancel Call Waiting 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

8. References:
 o LSSGR, TR-TSY-000064, FSD 01-02-1204 Cancel Call Waiting, Issue 2, July 1987,
   Module TR-TSY-000522.

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