NEC NDA-24305 1. Station A and Station B are in station-to-station connection., 2. Station C dials the number for Station B; Station C receives Busy Tone., 3. Station C presses the feature key for CCBS; Station C receives Service Set Tone and hangs up.

CHAPTER 6 NDA-24305
Page 24 8
Revision 1.0
CALL COMPLETION TO BUSY SUBSCRIBER (CCBS)
1. Station A and Station B are in station-to-station connection.
2. Station C dials the number for Station B; Station C receives Busy Tone.
3. Station C presses the feature key for CCBS; Station C receives Service Set Tone and hangs up.
Station A
Station B
[Node A] [Node B] [Node C]
Q-SIG/ Q-SIG/
Station C
IS-11572 IS-11572
Station C
Station A
Station B
[Node A] [Node B] [Node C]
Q-SIG/ Q-SIG/
BT
IS-11572 IS-11572
Station C
Station A
Station B
[Node A] [Node B] [Node C]
Q-SIG/ Q-SIG/
SST
IS-11572 IS-11572