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Cause No. 39 – Permanent frame mode connection is out-of-service [Q.850 only]
This cause indicates a calls has been preempted due to the circuit being reserved for reuse.
Cause No. 40 – Permanent frame mode connection is operational [Q.850 only]
This cause indicates a calls has been preempted due to the circuit being reserved for reuse.
Cause No. 41 – Net problem, redial (Temporary Failure)
This cause indicates that the network is not functioning correctly and that the condition is not likely to last a
long period of time; e.g. the user may wish to try another call attempt almost immediately. May also indicate
a data link layer malfunction locally or at the remote network interface or that a call was cleared due to
protocol error(s) at the remote network interface.
Cause No. 42 – Net busy, redial (Switching Equipment Congestion)
This cause indicates that the switching equipment generating this cause is experiencing a period of high
traffic.
Cause No. 43 – Access/user information discarded
This cause indicates that the network unable to deliver user information (i.e user-to-user information, low
level compatibility or sub-address, etc) to the remote users as requested.
Cause No. 44 – No channel available (Requested circuit/channel not available)
This cause is returned when the circuit or channel indicated by the requesting entity cannot be provided by
the other side of the interface.
Cause No. 46 – Precedence call blocked [Q.850 only]
This cause is used to indicate that there are no pre-emptable circuits or that the called user is busy with a call
of equal or higher pre-emptable level.
Cause No. 47 – Resource unavailable/New Destination
This cause is used to report a resource unavailable event only when no other cause in the resource unavail-
able class applies.
or
This cause is used to indicate that the original destination is unavailable and to invoke redirection to a new
destination.
Cause No. 49 – QOS unacceptable
This cause is returned when the Quality of Service is unacceptable.
CLASS 1.3 (service or option not available)
Cause No. 50 – Requested facility not subscribed
The cause is used to report that the user cannot use this feature because s/he has not subscribed to it.
Cause No. 51 – Bearer capability incompatible with service request
This cause indicates a user request for action was rejected because the action was incompatible with the
capability of the call.
Cause No. 52 – Outgoing calls barred
This cause indicates that because of call screening provided by the network, the calling user is not permitted
to make a call.
Cause No. 53 – Service operation violated
This cause indicates that the user has violated the service operation.
Cause No. 54 – Incoming calls barred
The user will not accept the call delivered in the SETUP message.
