Filter
Top Products
Appendix A-Disconnection Causes
A-16
97 Message Type
Non-Existent or
Not
Implemented
A message was received that is of a type that is
not defined or of a type that is defined but not
implemented.
98 Message is Not
Compatible with
the Call State, or
the Message
Type is Non-
Existent or Not
Implemented
An unexpected message or unrecognized
message incompatible with the call state has
been received
99 An Information
Element or
Parameter Does
Not Exist or is
Not
Implemented
A message was received containing elements
or parameters that are not defined or of a type
that is defined but not implemented.
100 Invalid
Information
Element
Contents
A message other than SETUP, DISCONNECT,
RELEASE, or RELEASE COMPLETE has been
received which has one or more mandatory
information elements containing invalid content.
101 The Message is
Not Compatible
with the Call
State
A STATUS message indicating any call state
except the Null state has been received while in
the Null state.
102 Recovery on
Timer Expired
An error handling procedure timer has expired.
103 Parameter Non-
Existent or Not
Implemented –
Passed On
(national use)
A message was received containing parameters
that are not defined or of a type that is defined
but not implemented.
Table A-2 ISDN Disconnection Causes (Continued)
Disconnection Cause
Number Summary Description