Comtrol InterChange VS 3000 Series, Руководство по установке и настройке

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ISDN Cause Codes
9
Preemption (circuit
reserved for reuse)
The call is being pre-empted and the
circuit is reserved for reuse by the pre-
empting exchange.
16 Normal call clearing
The call is being cleared because one of
the users participating in the call has
requested that the call be cleared.
17 User busy
The called party is unable to accept
another call because the user busy
condition has been encountered (by the
called user or by the network). If the user
is busy, it is noted that the user
equipment is compatible with the call.
18 No user responding
The called party does not respond to a call
establishment message with either an
alerting or connect indication within the
allocated time period.
19
No answer from user
(User alerted)
The called party has been alerted but
does not respond with a connect
indication within the allocated time
period. This is not necessarily generated
by Q.931 procedures but may be
generated by internal network timers.
20 Subscriber absent
A mobile station has logged off, radio
contact is not obtained with a mobile
station, or a personal telecommunications
user is temporarily not addressable at
any user-network interface.
21 Call rejected
The equipment sending does not accept
this call. The equipment is neither busy
nor incompatible. This can be generated
by the network, indicating that the call
was cleared by a supplementary service
constraint.
22 Number changed
The called-party number is no longer
assigned. The new called-party number
may be included in the diagnostic field.
26
Non-selected user
clearing The user has not been awarded the
incoming call.
27
Destination
out of order
The destination cannot be reached
because the interface to the destination is
not functioning. A signal message was not
delivered to the remote party because of a
physical layer or data link layer failure at
the remote party, or the user equipment
is off-line.
Table 5. ISDN Cause Codes (Continued)
Decimal Brief Description Expanded Description