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4 – Appendices NET SatisFAXtion 8.7 Manual 183
29205 Cause 21, Call rejected: Q.850 description : This cause indicates that
the equipment sending this cause does not wish to accept this call, although it
could have accepted the call because the equipment sending this cause is nei-
ther busy nor incompatible.
This cause may also be generated by the network, indicating that the call was
cleared due to a supplementary service constraint. The diagnostic field may
contain additional information about the supplementary service and reason for
rejection. Error type:
NON_RETRYABLE .
29206 Cause 22, Number changed: Q.850 description: This cause is re-
turned to a calling party when the called party number indicated by the calling
party is no longer assigned. The new called party number may optionally be in-
cluded in the diagnostic field. If a network does not support this cause value,
cause No. 1, Unallocated (unassigned) number, shall be used. Error type:
NON_RETRYABLE .
29207 Cause 23, Redirection to new destination: Q.850 description: This
cause is used by a general ISUP protocol mechanism that can be invoked by an
exchange that decides that the call should be set-up to a different called num-
ber. Such an exchange can invoke a redirection mechanism, by use of this cause
value, to request a preceding exchange involved in the call to route the call to
the new number. Error type:
NON_RETRYABLE .
29208 Cause 24, Call rejected due to feature at the destination: Q.850
description: This cause indicates that the call has been rejected due to feature
at the destination. Error type:
NON_RETRYABLE
.
29209 Cause 25, Exchange – Routing error: Q.850 description: This cause
indicates that the destination indicated by the user cannot be reached, because
an intermediate exchange has released the call due to reaching a limit in execut-
ing the hop counter procedure.
This cause is generated by an intermediate node, which when decrementing the
hop counter value, gives the result 0. Error type:
NON_RETRYABLE .
29210 Cause 26, Non-selected user clearing: Q.850 description: This
cause indicates that the user has not been awarded the incoming call. Error
type:
NON_RETRYABLE .
29211 Cause 27, Destination out of order: Q.850 description: This cause
indicates that the destination indicated by the user cannot be reached because
the interface to the destination is not functioning correctly. The term “not func-
tioning correctly” indicates that a signalling message was unable to be delivered
to the remote party; e.g. a physical layer or data link layer failure at the remote
party, or user equipment off-line. Error type:
NON_RETRYABLE .
29212 Cause 28, Invalid number format (address incomplete): The TDM
network was unable to route the phone number. Some TDM networks use this
cause to indicate numbers that are no longer in service. Error type:
NON_RETRYABLE
.