Table 6 Cause Values

Cause

Cause Description

Diagnostics

 

 

 

86

Call having the requested-call identity has been

Clearing cause

 

cleared

 

88

Incompatible destination

Incompatible parameter (Note 2)

91Invalid transit-network selection

95Invalid message, unspecified

96

Mandatory information element is missing

Information-element identifiers is missing

 

Information element identifiers

 

97

Message type non-existent or not implemented

Message type

98

Message not compatible with call state or

Message type non-existent

 

message type or not implemented

 

99

Information-element non-existent or not

Information-element identifiers not

 

implemented

implemented (Notes 6 & 8)

100

Invalid-information element

Information-element identifiers contents

 

 

(Note 6)

101

Message not compatible with call

Message type state

102

Recovery on timer expires

Timer number (Note 9)

111Protocol error, unspecified

127Internetworking, unspecified

Notes for Table 6:

„Note 1—The coding of facility identification is network dependent.

„Note 2—Incompatible parameter is composed of incompatible information element identifier.

„Note 3—The format of the diagnostic field for cause 57, 58, and 65 is shown in the ITU-T Q.931 specification.

„Note 4—User-supplied diagnostic field is encoded according to the user specification, subject to the maximum length of the cause-information element. The coding of user- supplied diagnostics should be made in such a way that it does not conflict with the coding described in Table B-2.

„Note 5—New destination is formatted as the called-party number information element, including information element identifier. Transit network selection might also be included.

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Nokia IPSO 4.0 manual Information-element identifiers is missing