Nortel DMS-250 - Page 154

7-26 Feature interaction
297-2521-106 Standard 23.01 March 2001
The calling number delivered indicator is captured in the call detail record
(CDR) in the originating switch. A new call disposition qualifier (TP3 or
*C) field containing value 11 (decimal) in both the CDR and PNR is added
to indicate that the calling number is delivered at the terminating PRI. For
the CDR, this is in word 27, bits 0 to 3; for the PNR, this is in word 15, bits
6 to 9.
Figure 7-8 shows calling number delivery within the SS7/ISDN network.
Figure 7-8
Calling number delivery in the SS7 network
PBX PBX
DMS-250
SETUP
IAM
CALL PROC
(PRI) (ISUP) (PRI)
ALERT ACM
Active Call
SETUP
CALL PROC
(CPIALLOW=YES)
ALERT
CONN
CONN ACK
ANM (BCSI=01)
CONN
CONN ACK
(Calling line info provided (CPI) is captured in the CDR/PNR)
DMS-250
Figure 7-9 illustrates nondelivery of calling number within the SS7/ISDN
network.