Isup коды ошибок

ISUP — SIP: соответствие причин отбоя (CV)

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  • 1 RFC 3398, ISUP to SIP Mapping, December 2002
    • 1.1 Прямое направление
      • 1.1.1 Normal event
      • 1.1.2 Resource unavailable
      • 1.1.3 Service or option not available
      • 1.1.4 Service or option not available
      • 1.1.5 Invalid message
      • 1.1.6 Protocol error
      • 1.1.7 Interworking
    • 1.2 Обратное направление

RFC 3398, ISUP to SIP Mapping, December 2002

Прямое направление 

If a cause value other than those listed below is received, the
  default response '500 Server internal error' SHOULD be used.

Normal event

  ISUP Cause value                        SIP response
  ----------------                        ------------
  1  unallocated number                   404 Not Found
  2  no route to network                  404 Not found
  3  no route to destination              404 Not found
  16 normal call clearing                 --- (*)
  17 user busy                            486 Busy here
  18 no user responding                   408 Request Timeout
  19 no answer from the user              480 Temporarily unavailable
  20 subscriber absent                    480 Temporarily unavailable
  21 call rejected                        403 Forbidden (+)
  22 number changed (w/o diagnostic)      410 Gone
  22 number changed (w/ diagnostic)       301 Moved Permanently
  23 redirection to new destination       410 Gone
  26 non-selected user clearing           404 Not Found (=)
  27 destination out of order             502 Bad Gateway
  28 address incomplete                   484 Address incomplete
  29 facility rejected                    501 Not implemented
  31 normal unspecified                   480 Temporarily unavailable

  (*) ISDN Cause 16 will usually result in a BYE or CANCEL

  (+) If the cause location is 'user' than the 6xx code could be given
  rather than the 4xx code (i.e., 403 becomes 603)

  (=) ANSI procedure - in ANSI networks, 26 is overloaded to signify
  'misrouted ported number'.  Presumably, a number portability dip
  should have been performed by a prior network.  Otherwise cause 26 is
  usually not used in ISUP procedures.

  A REL with ISDN cause 22 (number changed) might contain information
  about a new number where the callee might be reachable in the
  diagnostic field.  If the MGC is able to process this information it
  SHOULD be added to the SIP response (301) in a Contact header.

Resource unavailable

  This kind of cause value indicates a temporary failure.  A 'Retry-
  After' header MAY be added to the response if appropriate.

  ISUP Cause value                        SIP response
  ----------------                        ------------
  34 no circuit available                 503 Service unavailable
  38 network out of order                 503 Service unavailable
  41 temporary failure                    503 Service unavailable
  42 switching equipment congestion       503 Service unavailable
  47 resource unavailable                 503 Service unavailable

Service or option not available

  This kind of cause value indicates that there is a problem with the
  request, rather than something that will resolve itself over time.

  ISUP Cause value                        SIP response
  ----------------                        ------------
  55 incoming calls barred within CUG     403 Forbidden
  57 bearer capability not authorized     403 Forbidden
  58 bearer capability not presently      503 Service unavailable
     available

Service or option not available

  ISUP Cause value                        SIP response
  ----------------                        ------------
  65 bearer capability not implemented    488 Not Acceptable Here
  70 only restricted digital avail        488 Not Acceptable Here
  79 service or option not implemented    501 Not implemented

Invalid message

  ISUP Cause value                        SIP response
  ----------------                        ------------
  87 user not member of CUG               403 Forbidden
  88 incompatible destination             503 Service unavailable

Protocol error

  ISUP Cause value                        SIP response
  ----------------                        ------------
  102 recovery of timer expiry            504 Gateway timeout
  111 protocol error                      500 Server internal error

Interworking

  ISUP Cause value                        SIP response
  ----------------                        ------------
  127 interworking unspecified            500 Server internal error

Обратное направление 

Just as there are certain ISDN cause codes that are ISUP-specific and
  have no corollary SIP action, so there are SIP status codes that
  should not simply be translated to ISUP - some SIP-specific action
  should be attempted first.  See the note on the (+) tag below.

  Response received                     Cause value in the REL
  -----------------                     ----------------------
  400 Bad Request                       41 Temporary Failure
  401 Unauthorized                      21 Call rejected (*)
  402 Payment required                  21 Call rejected
  403 Forbidden                         21 Call rejected
  404 Not found                          1 Unallocated number
  405 Method not allowed                63 Service or option
                                           unavailable
  406 Not acceptable                    79 Service/option not
                                           implemented (+)
  407 Proxy authentication required     21 Call rejected (*)
  408 Request timeout                  102 Recovery on timer expiry
  410 Gone                              22 Number changed
                                           (w/o diagnostic)
  413 Request Entity too long          127 Interworking (+)
  414 Request-URI too long             127 Interworking (+)
  415 Unsupported media type            79 Service/option not
                                           implemented (+)
  416 Unsupported URI Scheme           127 Interworking (+)
  420 Bad extension                    127 Interworking (+)
  421 Extension Required               127 Interworking (+)
  423 Interval Too Brief               127 Interworking (+)
  480 Temporarily unavailable           18 No user responding
  481 Call/Transaction Does not Exist   41 Temporary Failure
  482 Loop Detected                     25 Exchange - routing error
  483 Too many hops                     25 Exchange - routing error
  484 Address incomplete                28 Invalid Number Format (+)
  485 Ambiguous                          1 Unallocated number
  486 Busy here                         17 User busy
  487 Request Terminated               --- (no mapping)
  488 Not Acceptable here              --- by Warning header
  500 Server internal error             41 Temporary failure
  501 Not implemented                   79 Not implemented, unspecified
  502 Bad gateway                       38 Network out of order
  503 Service unavailable               41 Temporary failure
  504 Server time-out                  102 Recovery on timer expiry
  504 Version Not Supported            127 Interworking (+)
  513 Message Too Large                127 Interworking (+)
  600 Busy everywhere                   17 User busy
  603 Decline                           21 Call rejected
  604 Does not exist anywhere            1 Unallocated number
  606 Not acceptable                   --- by Warning header

Источник

ISUP Cause Value

SIP Response

Normal event

1 – unallocated number

404 Not Found

2 – no route to network

404 Not Found

3 – no route to destination

404 Not Found

16 –  normal call clearing

— (*)

17 – user busy

486 Busy here

18 – no user responding

408 Request Timeout

19 – no answer from the user

480 Temporarily unavailable

20 – subscriber absent

480 Temporarily unavailable

21 – call rejected

403 Forbidden (+)

22 – number changed (s/o diagnostic)

410 Gone

23 – redirection to new destination

 410 Gone

26 – non-selected user clearing

404 Not Found (=)

27 – destination out of order

502 Bad Gateway

28 – address incomplete

484 Address incomplete

29 – facility rejected

510 Not implemented

31 – normal unspecified

480 Temporarily unavailable Resource unavailable

34 – no circuit available

503 Service unavailable

38 – network out of order

503 Service unavailable

41 – temporary failure

503 Service unavailable

42 – switching equipment congestion

503 Service unavailable

47 – resource unavailable

 503 Service unavailable Service or option not available

55 – incoming calls barred within CUG

403 Forbidden

57 – bearer capability not authorized

403 Forbidden

58 – bearer capability not presently available

503 Service unavailable

65 – bearer capability not implemented

488 Not Acceptable here

70 – Only restricted digital information bearer capability is available (National use)

488 Not Acceptable here

79 – service or option not implemented

501 Not implemented

Invalid message

87 – user not member of CUG

403 Forbidden

88 – incompatible destination

503 Service unavailable

102 – Call Setup Time-out Failure

504 Gateway timeout

111 – Protocol Error  Unspecified

500 Server internal error Interworking

127 – Internal Error — interworking unspecified

500 Server internal error

(*) ISDN Cause 16 will usually result in a BYE or CANCEL

(+) If the cause location is user then the 6xx code could be given rather than the 4xx code. the cause value received in the H.225.0 message is unknown in ISUP, the unspecified cause value of the class is sent.

(=) ANSI procedure

 SIP Status Code to ISDN Cause Code Mapping

Response received Cause value in the REL.

SIP Status Code

ISDN Map

400

Bad Request 41 – Temporary failure

401

Unauthorized 21 – Call rejected (*)

402

Payment required 21 – Call rejected

403

Forbidden 21 – Call rejected

404

Not Found 1   – Unallocated number

405

Method not allowed 63 –  Service or option unavailable

406

Not acceptable 79 – Service/option not implemented (+)

407

Proxy authentication required 21 – Call rejected (*)

408

Request timeout 102 – Recovery on timer expiry

410

Gone 22  –  Number changed (w/o diagnostic)

413

Request Entity too long 127 – Interworking (+)

414

Request –URI too long 127 – Interworking (+)

415

Unsupported media type 79 – Service/option not implemented (+)

416

Unsupported URI Scheme 127 – Interworking (+)

402

Bad extension 127 – Interworking (+)

421

Extension Required 127 – Interworking (+)

423

Interval Too Brief 127 – Interworking (+)

480

Temporarily unavailable 18 – No user responding

481

Call/Transaction Does not Exist 41 – Temporary Failure

482

Loop Detected 25 – Exchange – routing error

483

Too many hops 25 – Exchange – routing error

484

Address incomplete 28 – Invalid Number Format (+)

485

Ambiguous 1 – Unallocated number

486

Busy here 17 – User Busy

487

Request Terminated — (no mapping)

488

Not Acceptable here — by warning header

500

Server internal error 41 – Temporary Failure

501

Not implemented 79 – Not implemented, unspecified

502

Bad gateway 38 – Network out of order

503

Service unavailable 41 – Temporary Failure

504

Service time-out 102 – Recovery on timer expiry

505

Version Not supported 127 – Interworking (+)

513

Message Too Large 127 – Interworking (+)

600

Busy everywhere 17 – User busy

603

Decline 21 – Call rejected

604

Does not exist anywhere 1 – Unallocated number

606

Not acceptable — by warning header

H.225 Release Reason to Q.931 Cause Code Mapping

The following table shows the mapping of H.225 Release reason to Q.931 Cause Codes in the IMG 2020. If the cause value received in the H.225.0 message is unknown in ISUP, the unspecified cause value of the class is sent.

H.323

SS7

noBandwidth

34 – no circuit/channel available

gatekeeperResources

47 – Resource unavailable, unspecified

unreachableDestination

3 – No route to destination

destinationRejection

16 – Normal call clearing

invalidRevision

88 – Incompatible destination

noPermission

127 – Interworking, unspecified

unreachableGatekeeper

38 – Network out of order

gatewayResources

42 – Switching equipment congestion

badFormatAddress

28 – Invalid number format

adaptiveBusy

41 – Temporary failure

inConf

17 – User busy

undefinedReason

31 – Normal, unspecified

facilityCallDetection

16 – Normal call clearing

securityDenied

31 – Normal, unspecified

calledPartyNotRegistered

20 – Subscriber absent

callerNotRegistered

31 – Normal, unspecified

newConnectionNeeded

47 – Resource unavailable, unspecified

nonStandardReason

127 – Interworking, unspecified

replaceWithConferenceInvite

31 – Normal, unspecified

genericDataReason

31 – Normal, unspecified

neededFeatureNotSupported

31 – Normal, unspecified

tunnelledSignallingRejected

127 – Interworking, unspecified

invalidCID

3 – No route to destination
Источник

Q.850 cause - коды ответов

Q.850 cause – рекомендация ITU-T, также описывающая коды ответов узлов телефонной сети стандарта ОКС-7 (ISUP).

Один из узлов, принимающий участие в обработке вызова (оконечное устройство или транзитный коммутатор), завершая соединение (в конце разговора или на этапе попыток установить соединение, найти подходящий маршрут для отправки вызова) указывает причину такой операции в соответствующем поле сообщения, передаваемого другим узлам. Причины завершения рекомендации Q.850 практически полностью соответствуют Q.931 для ISDN.

Обычно на коммутаторе можно настроить, какой звук будет проигрываться абоненту для каждого кода завершения (абонент недоступен, абонент занят, сеть перегружена и т.п.).

Таблица соответствия Q.850 cause codes

Q.850 код Q.850 описание SIP код SIP описание Комментарий
1 Unallocated number 404 Not found N/A
2 No route to specified transit network 404 Not found N/A
3 No route destination 404 Not found N/A
16 Normal calling clearing N/A BYE message A call clearing BYE message containing cause
value 16 normally results in the sending of a SIP BYE or CANCEL request.
However, if a SIP response is to be sent to the INVITE request, the default
response code should be used.
17 User busy 486 Busy here N/A
18 No user responding 408 Request timeout N/A
19 No answer from the user 480 Temporarily unavailable N/A
20 Subscriber absent 480 Temporarily unavailable N/A
21 Call rejected 603 Decline (if location filed in Cause information
element indicates user; otherwise 403 Forbidden is used)		 N/A
22 Number changed 301 Moved permanently (if information in diagnostic
field of Cause information element is suitable for generating SIP Contact
header; otherwise 410 Gone is used)		 N/A
23 Redirection to new destination 410 Gone N/A
25 Exchange routing error 483 Too many hops N/A
27 Destination out of order 502 Bad gateway N/A
28 Address incomplete 484 Address incomplete N/A
29 Facility rejected 501 Not implemented N/A
31 Normal, unspecified 480 Temporarily unavailable N/A
34 No circuit, channel unavailable 503 Service unavailable N/A
38 Network out of order 503 Service unavailable N/A
41 Temporary failure 503 Service unavailable N/A
42 Switching equipment congestion 503 Service unavailable N/A
47 Resource unavailable unspecified 503 Service unavailable N/A
55 Incoming calls barred with CUG 403 Forbidden N/A
57 Bearer capability not authorized 403 Forbidden N/A
58 Bearer capability not presently available 503 Service unavailable N/A
65 Bearer capability not implemented 488 Not acceptable here N/A
69 Requested facility not implemented 501 Not implemented N/A
70 Only restricted digital information available 488 Not acceptable here N/A
79 Service or option not implemented, unspecified 501 Not implemented N/A
87 User not member of CUG 403 Forbidden N/A
88 Incompatible destination 503 Service unavailable N/A
102 Recovery on timer expiry 504 Server time-out N/A

Дополнительная информация:

  • Причины разъединения в Asterisk
  • SIP ответы и их значения

Любое использование материалов сайта возможно только с разрешения автора и с обязательным указанием источника.

Источник

ISUP release cause list

REL Cause Value

                Meaning

NORMAL EVENT CLASS

1

Unallocated number

2

No route to specified transit network

3

No route to destination

4

Send special information tone

5

Misdialled trunk prefix

6

Channel unacceptable

7

Call awarded and being delivered in an established channel

16

Normal call clearing

17

User busy

18

No user responding

19

No answer from user (user alerted)

20

Subscriber absent

21

Call rejected

22

Number changed

26

Non selected user clearing

27

Destination out of order

28

Invalid format (address incomplete)

29

Facility rejected

30

Response to status enquiry

31

Normal, unspecified

RESOURCE UNAVAILABLE CLASS

34

No circuit/channel available

38

Network out of order

41

Temporary failure

42

Switching equipment congestion

43

Access information discarded

44

Request circuit/channel not available

47

Resource unavailable, unspecified

SERVICE/OPTION NOT AVAILABLE CLASS

49

Quality of service unavailable

50

Requested facility not subscribed

55

Incoming calls barred within CUG

57

Bearer capability not authorized

58

Bearer capability not presently available

63

Service or option not available, unspecified

SERVICE/OPTION NOT IMPLEMENTED CLASS

65

Bearer capability not implemented

69

Requested facility not implemented

70

Only restricted digital information                                                                                       bearer capability is available

79

Service or option not implemented, unspecified

INVALID MESSAGE CLASS

81

Invalid call reference value

82

Identified channel does not exist

83

A suspend call existing but this call identity does not

84

Call identity in use

85

No call suspended

86

Call having the requested call identity has been cleared

87

User not member of CUG

88

Incompatible destination

91

Invalid transit network selection

95

Invalid message, unspecified

PROTOCOL ERROR CLASS

96

Mandatory information element is missing

97

Message type non-existing or not implemented

98

Message not compatible with call state or                                                                            message type non-existing or not implemented

99

Information element non-existing or not implemented

100

Invalid information element contents

101

Message not compatible call state

102

Recovery on timer expiry

103

Parameter non-existent or not implemented

109

Unrecognized message has been passed on

110

Message with unrecognized parameter discarded

111

Protocol error, unspecified

INTERWORK CLASS

127

Interworking, unspecified
Источник

Для ISUP специфицировано около 40 типов сообщений и около 80 параметров. Вот некоторые примеры типов сообщений:

  • начальное адресное сообщение (IAM),
  • запрос информации (INR),
  • информация (INF),
  • сообщение о приеме всего адреса (АСМ),
  • сообщение ответа (ANM),
  • запрос модификации соединения (CMR),
  • подтверждение выполнения модификации соединения (CMC),
  • отказ модифицировать соединение (CMRJ),
  • запрос разъединения (REL),
  • подтверждение разъединения (RLC).

Перечень параметров сообщений ISUP приведен в таблицах П. 2.1 и П. 2.2.

Таблица П. 2.1

Параметры сигнальных сообщений ISUP

Имя параметра

Код

Числобайт
Транспорт доступа (Access transport)

00000011

N×3

Уровень автоматической перегрузки

(Automatic congestion level)

00100111

1
Индикаторы, передаваемые в обратном направлении (Backward call indicators)

00010001

2
Информация отклонения вызова (Call diversion information)

00110110

1
Номер вызываемого пользователя (Called party number)

00000100

4–11
Номер вызывающего пользователя (Calling party number)

00001010

4–12

Категория вызывающего пользователя

(Calling party’s category)

00001001

1
Индикатор причины (Cause indicators)

00010010

2
Номер интервала оплаты (Charge band number)

11111111

1
Индикатор типа сообщения наблюдения за группой каналов (Circuit group supervision message type indicator)

00010101

1

Код ключа замкнутой группы пользователей

(Closed user interlock code)

00011010

4
Подключённый номер (Connected number)

00100001

4–12
Индикаторы шлейфной проверки (Continuity indicators)

00010000

1

Конец необязательных параметров

(End of optional parameters)

00000000

1
Информация о событии (Event information)

00100100

1

Индикаторы вызова прямого направления

(Forward call indicators)

00000111

2
Индикатор общего уведомления (Generic notification indicator)

00101100

3
Общий номер (Generic number)

11000000

4–13
Индикаторы информации (Information indicators)

00001111

2
Индикаторы запроса информации (Information request indicators)

00001110

2
Номер размещения (Location number)

00111111

4–12

Индикаторы типа соединения

(Nature of connection indicators)

00000110

1

Необязательные индикаторы обратного направления

(Optional backward call indicators)

00101001

1

Необязательные индикаторы прямого направления

(Optional forward call indicators)

00001000

1
Исходный вызываемый номер (Original called number)

00101000

4–12
Диапазон и состояние (Range and status)

00010110

3–34
Переадресующий номер (Redirecting number)

00001011

4–12
Информация переадресации (Redirecting information)

00010011

2
Переадресуемый номер (Redirecting number)

00001100

4–12

Ограничение переадресации номера

(Redirection number restriction)

 01000000

1
Последующий номер (Subsequent number) 00000101

3–10

Индикаторы приостановки/возобновления

(Suspend/resume indicators)

 00100010

1

Требования к среде передачи

(Transmission medium requirement)

 00000010

1

Информация об услуге пользователя

(User service information)

 00011101

29

Индикаторы от пользователя к пользователю

(Usertouser indicators)

 00101010

1

Информация от пользователя к пользователю

(Usertouser information)

 00100000

3131

Таблица П. 2.2.

Свойства основных параметров сообщений ISUP

Сообщения

Параметры

IAM

SAM

COT

ACM

CON

CPG

ANM

FOT

REL

RLC

CCR

UBL

UBA

RES

CGU

CGUA

GRA

Тип сообщения

О

О

О

О

О

О

О

О

О

О

О

О

О

О

О

О

О

Транспорт доступа

Н

Н

Н

Н

Н

Автоматический уровень перегрузки

Н

Индикаторы обратного направления

О

О

Н

Н

Номер вызываемого абонента

О

Номер вызывающего абонента

Н

Категория вызывающего абонента

О

Индикаторы причины

Н

О

Подключенный номер

Н

Н

Индикатор шлейфной проверки

О

Индикаторы события

О

Индикаторы вызова прямого направления

О

Необязательные индикаторы обратного направления

Н

Н

О

Необязательные индикаторы прямого направления

Н

Последующий номер

О

Индикаторы приостановки/возобновления

О

Требования к среде передачи

О

Информация об услуге пользователя

Н

Индикаторы от пользователя к пользователю

Н

Н

Информация от пользователя к пользователю

Н

Н

Н

Н

Н

Н

Примечание. О – обязательный параметр; Н – необязательный параметр
Источник

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