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7. Operation and Maintenance
9128-A2-GB20-80 September 2002
7-45
Normal Call
Clearing
16 Call is being cleared
because either the caller or
receiver has requested that
it be cleared.
No action is needed.
Normal, Unspecified 31 Remote user has sent a
release message to the
network.
No other cause in the
normal class applies for this
normal event.
No action is needed.
No User
Responding
18 Called device does not
respond to the call with an
alert or connect indication
within the prescribed period
of time.
Internal network timers may
be a cause.
Contact the network
provider if the cause
continues.
Number Changed 22 Called number is no longer
assigned.
Look in the diagnostic field
for the new number, then
change the phone number
in your ISDN link profile.
Only Restricted
Bearer Capability
Available
70 An unrestricted bearer
service has been
requested, but the device
sending the cause only
supports the restricted
version.
Arrange for the desired
capability.
Outgoing Calls
Barred
52 Network is using Call
Screening.
Contact the network
provider to turn Call
Screening off.
Pre-empted 45 Call has been pre-empted. Contact the network
provider.
Protocol Error,
Unspecified
111 No other cause in the
protocol error class applies
for this protocol error event.
Contact your service
representative.
Quality of Service
Unavailable
49 Requested Quality of
Service requested cannot
be provided (e.g.,
throughput cannot be
supported).
No action is needed.
Recovery of Timer
Expired
102 Error-handling procedure
has been initiated as a
result of the expiration of a
timer.
Retry the call.
Table 7-14. Most Recent and Previous Cause Value Messages (4 of 6)
Message
Cause
No. What It Indicates What To Do