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10-16
Cisco BTS 10200 Softswitch Troubleshooting Guide, Release 5.0.x
OL-8723-19
Chapter 10 Signaling Troubleshooting
Signaling Events and Alarms
SIGNALING (27)
To monitor and correct the cause of the event, refer to the
“Unanswered Circuit Group Blocking
Message—Signaling (27)” section on page 10-101
DESCRIPTION
Unanswered Circuit Group Blocking Message (Unanswered CGB)
SEVERITY
WARNING
THRESHOLD
100
THROTTLE
0
DATAWORDS
CIC Number–TWO_BYTES
TGN-ID–FOUR_BYTES
DPC–STRING [20]
OPC–STRING [20]
PRIMARY
CAUSE
Issued when a circuit group blocking (CGB) message was not acknowledged before the timer 19 (T19)
expired for the associated CIC.
PRIMARY
ACTION
Verify that the SS7 signaling adapter processes is running normally. Verify that the call agent platform
is active.
SECONDARY
ACTION
Verify that the SS7 interface hardware is in service. Verify that the associated SS7 signaling link is
available.
TERNARY
ACTION
Verify that the T13 timer is set to an appropriate level.
SUBSEQUENT
ACTION
Verify that the SS7 link is not congested.