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NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1
Page 147
Call Completion to Busy Subscriber (CCBS) C-148
C-148 Call Completion to Busy Subscriber (CCBS)
General Description
This feature provides the Call Back service through the Q-SIG network. (This service is called Supplementary
Service – Call Completion to Busy Subscriber (SS-CCBS), based on ETS 300 366.) SS-CCBS can be set from a
calling station which has dialed a busy station over the Q-SIG network. When this is done, the calling station is rung
as soon as the busy station becomes available. Upon answering, the desired station automatically rings.
Operating Procedure
To set CCBS (Call Completion to Busy Subscriber)
1. Hooking + access code
a.) Hear busy tone.
b.) Press the switchhook.
c.) Dial the CCBS set code; receive service set tone.
d.) Hang up.
2. Last number + access code
a.) Hear busy tone.
b.) Dial the last number of the target telephone number.
c.) Dial the CCBS set code; receive service set tone.
d.) Hang up.
3. D
term
feature key
a.) Hear busy tone.
b.) Press the Camp-on feature key; receive service set tone.
c.) Hang up.
To cancel CCBS
1. Access Code
a.) Go off-hook; receive dial tone.
b.) Dial the CCBS cancel code; receive service set tone.
c.) Hang up.
2. D
term
feature key
a.) Go off-hook; receive dial tone.
b.) Dial the CCBS cancel code; receive service set tone.
c.) Hang up.