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4 – Appendices NET SatisFAXtion 8.7 Manual 188
ceived which is of an incorrect format as defined in Annex C/Q.931. Error
type:
NON_RETRYABLE
.
29279 Cause 95, Invalid message, unspecified: Q.850 description: This
cause is used to report an invalid message event only when no other cause in
the invalid message class applies. Error type:
NON_RETRYABLE .
4.1.11.6
Protocol Error Class
29280 Cause 96, Mandatory information element is missing: Q.850 de-
scription: This cause indicates that the equipment sending this cause has re-
ceived a message which is missing an information element which must be
present in the message before that message can be processed. Error type:
NON_RETRYABLE
.
29281 Cause 97, Message type non-existent or not implemented: Q.850
description: This cause indicates that the equipment sending this cause has re-
ceived a message with a message type it does not recognize either because this
is a message not defined or defined but not implemented by the equipment
sending this cause. Error type:
NON_RETRYABLE .
29282 Cause 98, Message not compatible with call state or message
type non-existent or not implemented: Q.850 description: This cause indi-
cates that the equipment sending this cause has received a message such that
the procedures do not indicate that this is a permissible message to receive
while in the call state, or a STATUS message was received indicating an incom-
patible call state. Error type:
NON_RETRYABLE .
29283 Cause 99, Information element nonexistant or not implemented:
Q.850 description: This cause indicates that the equipment sending this cause
has received a message which includes information element(s)/parameter(s) not
recognized because the information element identifier(s)/parameter name(s) are
not defined or are defined but not implemented by the equipment sending the
cause. This cause indicates that the information element(s)/parameter(s) were
discarded. However, the information element is not required to be present in
the message in order for the equipment sending the cause to process the mes-
sage. Error type:
NON_RETRYABLE .
29284 Cause 100, Invalid information element contents: Q.850 descrip-
tion: This cause indicates that the equipment sending this cause has received an
information element which it has implemented; however, one or more fields in
the information element are coded in such a way which has not been implement-
ed by the equipment sending this cause. Error type:
NON_RETRYABLE .
29285 Cause 101, Message not compatible with call state: Q.850 de-
scription: This cause indicates that a message has been received which is incom-
patible with the call state. Error type:
NON_RETRYABLE
.
29286 Cause 102, Recovery on timer expiry: Q.850 description: This cause
indicates that a procedure has been initiated by the expiry of a timer in associa-
tion with error handling procedures. Error type:
NON_RETRYABLE
.