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Figure 15-3
T(connest) Timer
Originating PBX
SETUP (NCAUUI Request)
CONNect
CONNect ACKnowledge
Figure 15-4
T(connest) Time-out
Originating PBX
SETUP (NCAUUI Request)
RELease w/ cause value
18 "no user responding"
RELease COMPlete
NCAUUI Invocation Negative Acknowledgment
User Invocation Rejection
The ISDN user at the terminating DMS-250 switch rejects a NCA-TSC
request message with a Q.931 DISConnect, RELease or RELease COMPlete
Originating MCI DMS–250
T(connest)
Started
Connection Request
T(connest)
Stopped
Originating MCI DMS–250
T(connest)
Started
T(connest)
Time–out
Digital Switching Systems DMS-250 ISDN Reference Manual MWC14 (CSP14)
Terminating MCI DMS–250
CR
CC
Connection Confirm
Terminating MCI DMS–250
CR
Connection Request
NCAUUI 15-7
Terminating PBX
SETUP (NCAUUI Request)
CONNect
CONNect ACKnowledge
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