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88 | Section 6
be processed.
Cause No. 97 - Message type non-existent or not implemented
is cause indicates that the equipment sending this cause has received a message with a mes-
sage type it does not recognize either because this is a message not defined, or defined and not
implemented by the equipment sending this cause.
Cause No. 98 – Message not compatible
is cause indicates that the message received is not compatible with the call state or the mes-
sage type is non-existent or not implemented.
Cause No. 99 – Info non-existent or not implemented, call processed
is cause is sent when the equipment sending this cause has received a message which includes
the information elements not recognized because the information element identifier is not
define or it is defined but not implemented by the equipment sending the cause. However, the
information element is not required for the equipment sending the cause to process the message.
Cause No. 100 – Invalid information element contents
is cause is returned when the equipment sending this cause has received an information ele-
ment that it has implemented; however one or more field of the information element are coded
in such as way (e.g., truncated, invalid extension bit, invalid field values, etc) that has not been
implemented by the equipment sending this cause.
Cause No. 101 – Message not compatible with call state/Protocol error threshold
is cause is returned when the equipment sending this cause has received a message that
procedures indicate is not a permissible message to receive at this time.
or
is cause indicates that the switch sending this cause is clearing the call because a threshold
has been exceeded for multiple protocol errors during an active call.
Cause No. 102 - Timeout disconnect (Recovery on timer expiration)
is cause indicates that a procedure has been initiated by the expiry of a timer in association
with error handling procedures.
Cause No. 103 – Parameter non-existent or not implemented – passed on (National use)/
Mandatory Information Element of incorrect length [VN 4 only]
is cause indicates that the equipment sending this cause has received a message which
includes parameter(s) not recognized because the parameter(s) are not defined of are defined
but not implemented by the equipment sending this cause. is cause indicates that the
parameter(s) were ignored. In addition, if the equipment sending this cause is an intermediate
point, then this cause indicates that the parameter(s) were passed unchanged.
or
is cause indicates that the equipment sending this cause has received a message with a
mandatory information element of incorrect length.
Cause No. 110 – Message with unrecognized parameter discarded [Q.850 only]
is cause indicates that the equipment sending this cause has discarded a received message that
includes a parameter that is not recognized.
Cause No. 111 – Protocol Error, unspecified
is cause is used to report a protocol error event only when no other cause in this class applies.
Among other things, this cause may be displayed if you failed to dial a “9” or “8” for an outside
line, if required. Also may be returned if you have some types of restrictions as to the number of