Appendix A-Disconnection Causes

Table A-2ISDN Disconnection Causes (Continued)

Disconnection Cause

Number Summary

Description

 

 

97Message Type A message was received that is of a type that is Non-Existent or not defined or of a type that is defined but not

Notimplemented. Implemented

98

Message is Not

An unexpected message or unrecognized

 

Compatible with

message incompatible with the call state has

 

the Call State, or

been received

 

the Message

 

 

Type is Non-

 

 

Existent or Not

 

 

Implemented

 

 

 

 

99

An Information

A message was received containing elements

 

Element or

or parameters that are not defined or of a type

 

Parameter Does

that is defined but not implemented.

 

Not Exist or is

 

 

Not

 

 

Implemented

 

 

 

 

100

Invalid

A message other than SETUP, DISCONNECT,

 

Information

RELEASE, or RELEASE COMPLETE has been

 

Element

received which has one or more mandatory

 

Contents

information elements containing invalid content.

 

 

 

101

The Message is

A STATUS message indicating any call state

 

Not Compatible

except the Null state has been received while in

 

with the Call

the Null state.

 

State

 

 

 

 

102

Recovery on

An error handling procedure timer has expired.

 

Timer Expired

 

103Parameter Non- A message was received containing parameters

Existent or Not that are not defined or of a type that is defined

Implemented – but not implemented. Passed On

(national use)

A-16

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