Farallon Communications 612 - Manual (Page 135)

ISDN Events B-7
Cause No. 96: mandatory information element is missing. The
equipment sending this cause has received a message which is
missing an information element which must be present in the
message before that message can be processed.
Cause No. 98: message not compatible with call state or mes-
sage type non-existent or not implemented. 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 incompatible call state.
Cause No. 99: information element non-existent or not imple-
mented. The equipment sending this cause has received a
message which includes information elements not recognized
because the information element identifier is not defined or it is
defined but not implemented by the equipment sending the cause.
However, the information element is not required to be present in
the message in order for the equipment sending the cause to
process the message.
Cause No. 100: invalid information element contents. The
equipment sending this cause has received an information element
which it has implemented, however, one or more of the fields in the
information element is coded in such a way that it has not been
implemented by the equipment sending this cause.
Cause No 101: message not compatible with call state. A
message has been received which is incompatible with the call
state.
Cause No. 102: recovery on timer expiry. A procedure has been
initiated by the expiration of a timer in association with Q.931 error
handling procedures.
Cause No. 111: protocol error, unspecified. This cause is used to
repor t a protocol error event only when no other cause in the
protocol-error class applies.
Cause No. 127: interworking, unspecified. There has been
inter working with a network which does not provide causes for
actions it takes, thus, the precise cause for a message which is
being sent cannot be ascer tained.