Netopia 435 Reference Manual page 249

E-6 Netopia ISDN Router Reference Guide
Cause No. 41: 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.
Cause No. 42: switching equipment congestion. This cause
indicates that the switching equipment generating this cause is
experiencing a period of high traffic.
Cause No. 43: access information discarded. This cause indicates
that the network could not deliver access information to the remote
user as requested: i.e., a user-to-user information, low layer
compatibility, high layer compatibility, or a sub-address as indicated
in the diagnostic.
It is noted that the particular type of access information discarded
is optionally included in the diagnostic.
Cause No. 44: 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. 47: resource unavailable, unspecified. This cause is
used to report a resource unavailable event only when no other
cause in the resource unavailable class applies.
Cause No 49: Quality of Service not available. This cause is used
to report that the requested Quality of Service, as defined in
Recommendation X.213, cannot be provided (e.g., throughput or
transit delay cannot be supported).
Cause No. 50: requested facility not subscribed. This cause
indicates that the requested supplementary service could not be
provided by the network because the user has not completed the
necessary administrative arrangements with its supporting
networks.
Cause No 57: bearer capability not authorized. This cause
indicates that the user has requested a bearer capability
implemented by the equipment that generated this cause but the
user is not authorized to use.