NEC NDA-24305 4. Example of Message Sequences

CHAPTER 6 NDA-24305
Page 28 8
Revision 1.0
Q-SIG (CIRCUIT SWITCHED BASIC CALL - ETSI VERSION)
4. Example of Message Sequences
<Enbloc Sending/Cal l Clearing>
OG PBX IC PBX
SETUP
CONN ACK
DISC
REL COM
Call Active
CALL PROC
ALERT
CONN
REL
<Overlap Sending/Call Clearing>
OG PBX I C PBX
SETUP ACK
SETUP (CPN=0123)
INFO(CPN=4)
INFO (CPN=5)
INFO (CPN=6)
INFO (CPN=7)
INFO (CPN=8)
CONN ACK
DISC
REL COM
Call Active
CALL PROC
ALERT
CONN
REL
After receiving S ETUP ACK,
OG PBX shall send CPN by
INFORMATION Message.
CPN is "012345678", however SETUP does not
include them complet el y.
IC PBX shall send SETUP ACK as the request
of CPN.
After receiving CPN completely by INFO,
IC PBX shall send CALL PROC.
Note: CPN = Called Party Nu mber