Polycom RMX 1500 Administrator's Manual page 847

Table A-2 ISDN Disconnection Causes (Continued)
Number Summary
88 Incompatible
Destination
90 Non-Existent
CUG
91 Invalid Transit
Network
Selection
(national use)
95 Invalid Message,
Unspecified
96 Mandatory
Information
Element is
Missing
97 Message Type
Non-Existent or
Not
Implemented
98 Message is Not
Compatible with
the Call State, or
the Message
Type is Non-
Existent or Not
Implemented
99 An Information
Element or
Parameter Does
Not Exist or is
Not
Implemented
Disconnection Cause
Description
User-to-user compatibility checking procedures
in a point-to-point data link have determined
that an incompatibility exists between Bearer
capabilities.
CUG does not exist.
The transit network selection is of an incorrect
format. No route (transit network) exists
between the two networks.
Invalid message received. No other
disconnection cause applies.
A message was received with an information
element missing.
A message was received that is of a type that is
not defined or of a type that is defined but not
implemented.
An unexpected message or unrecognized
message incompatible with the call state has
been received
A message was received containing elements
or parameters that are not defined or of a type
that is defined but not implemented.
Chapter A-Disconnection Causes
A-15