Appendix D

ISDN Information

Code

Cause

Definition

82

Identified channel

The receiving equipment is requested to

 

does not exist

use a channel that is not activated on the

 

 

interface for calls.

 

 

 

83

A suspended call

The network received a call resume

 

exists but this call

request. The call resume request

 

identity does not

contained a call identify information

 

 

element indicating that the call identity is in

 

 

use for a suspended call.

 

 

 

84

Call identity in use

The network received a call resume

 

 

request that contained a Call Identify

 

 

information element indicating that it is in

 

 

use for a suspended call.

 

 

 

85

No call suspended

The network received a call resume

 

 

request when there was not a suspended

 

 

call pending. This might be a transient error

 

 

that will be resolved by successive call

 

 

retries.

 

 

 

86

Call having

The network received a call resume

 

requested call

request. The call resume request

 

identity has been

contained a call identity information

 

cleared

element, which once indicated a

 

 

suspended call. However, the suspended

 

 

call was cleared either by timeout or by the

 

 

remote user.

 

 

 

88

Incompatible

Indicates that an attempt was made to

 

destination

connect to non-ISDN equipment, such as

 

 

to an analog line.

 

 

 

91

Invalid transit

The ISDN exchange was asked to route the

 

network specified

call through an unrecognized intermediate

 

 

network.

 

 

 

95

Invalid message,

An invalid message was received, and no

 

unspecified

standard cause applies. This is usually due

 

 

to a D-channel error. If this error occurs

 

 

systematically, report it to your ISDN

 

 

service provider.

 

 

 

96

Mandatory

The receiving equipment received a

 

information element

message that did not include one of the

 

is missing

mandatory information elements. This is

 

 

usually due to a D-channel error. If this

 

 

error occurs systematically, report it to your

 

 

ISDN service provider.

 

 

 

97

Message type

The receiving equipment received an

 

nonexistent or not

unrecognized message, either because the

 

implemented

message type was invalid or because the

 

 

message type was valid but not supported.

 

 

Cause 97 is due to either a problem with

 

 

the remote configuration or a problem with

 

 

the local D channel.

 

 

 

ViewStation User Guide

208

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