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Switching equipment congestion
Access information discarded
Requested circuit/channel not available
Precedence call blocked
Resource unavailable, unspecified
Quality of Service not available
Requested facility not subscribed
Outgoing calls barred
Outgoing calls barred within CUG
Incoming calls barred
This cause indicates that the switching equipment generating this cause is experiencing a period of high traffic.
This cause indicates that the network could not deliver access information to the remote user as requested, i.e.
This cause is returned when the circuit or channel indicated by the requesting entity cannot be provided by the other side of the interface.
This cause indicates that there are no preemptable circuits or that the called user is busy with a call of equal or higher preemptable level.
This cause is used to report a resource unavailable event only when no other cause in the resource unavailable class applies.
This cause is used to report that the requested Quality of Service, as defined in Recommendation X.213, cannot be provided (e.g. throughput of transit delay cannot be supported).
This cause indicates that the user has requested a supplementary service which is implemented by the equipment which generated this cause, but the user us not authorized to use.
This cause indicates that although the calling party is a member of the CUG for the outgoing CUG call, outgoing calls are not allowed for this member of the CUG.