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List Of Outstanding Events Generated By ISDN, Protocol Level D

List Of Outstanding Events Generated By ISDN, Protocol Level D

Structure of the outstanding event on ISDN, protocol D

The meanings of the "cause" codes are described in the CCITT recommendation Q.931.

The value contains two bytes:

The "Diagnostics" field is only present for the following causes (hexa): 5F, 60, 61, 62, 63 and 64.


Table D-1: Outstanding Events On ISDN, Protocol D
Event Code (Hexa) Byte Value "Cause" (Hexa) Meaning Reaction of the Equipments

60

01

Unallocated number

Call cleared normally

02

No route to specified transit network

Call cleared normally

03

No route to destination

Call cleared normally

06

Channel unacceptable

Call cleared normally

07

Assigned call putting back to 1 established

Call cleared normally

10

Normal clearing

Call cleared normally

11

User occupied

Call cleared normally

12

User does not respond

Call cleared normally

13

Additional service not registered

Call cleared normally

15

Call reject

Call cleared normally

16

Number changed

Call cleared normally

18

Number not assigned

Call cleared normally

1A

No selected user clearing

Call cleared normally

1B

Destination not in service

Call cleared normally

1C

Incomplete address

Call cleared normally

1D

Facility rejected

Call cleared normally

1E

Response to STATUS ENQUIRY

Call cleared normally

1F

Normal unspecified

Call cleared normally

22

No circuit or channel available

Call cleared normally

26

Network out of order

Call cleared normally

29

Network trouble

Call cleared normally

2A

Network congestion

Call cleared normally

2C

Requested channel or circuit not available

Call cleared normally

2F

Network resources temporarily not available

Call cleared normally

31

SUU not transmitted (SUU = User to user signalization)

Call is routed

32

No authorization for this service

Clear

39

Bearer capability not authorized

Clear

3A

Bearer capability not presently available

Clear

3B

Call restriction

Clear

3C

National call transfer rejected

Clear

3E

No service authorization

Clear

3F

Service or option not in service, not specified

Clear

41

Service support not in service

Clear

42

Channel type not put into service

Clear

45

Additional service not put into service

Clear

4F

Service or option not in service, not specified

Clear

51

Call reference value not valid

Clear

52

Identified channel does not exist

Clear

53

Call identity does not exist

Clear

54

Call identity in service

Clear

55

No call suspended

Clear

56

Call having the requested call retentity has been cleared

Clear

58

Incompatible destination

Clear

5B

Invalid transit network selection

Clear

5C

Additional service parameter erroneous

Call is routed

5F

Message not valid not specified

Call ir routed

60

Obligatory data element not present

Clear

61

Unknown message

Message ignored

62

Message not compatible with call status

Transmission of a status request message to the network

63

Unknown data element or not put into service

The message depends on the received message

64

Contents of data element not valid

The message depends on the received message

65

Message no compatible with call state

The message depends on the received message

66

Recovery on timer expiry

Clear

67

Message received with an obligatory "Ei" (Element information) of unknown length

The message depends on the received message

6F

Not specified protocol error

Clear

71

Service support not available

Clear

72

End-to-end data transfer not possible

Clear

7E

Transfer in conversation position

7F

Inter-operation not specified

Clear

80

N2 cleared (local cause)

Depends on the status of protocol D

81

End of time-out (local cause)

Depends on the status of protocol D


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Posted: Thu Jan 25 14:05:22 PST 2001
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