Call-Diversion-Operations {itu-t recommendation h 450 3 version2(1)
  call-diversion-operations(0)} DEFINITIONS AUTOMATIC TAGS ::=
BEGIN

IMPORTS
  OPERATION, ERROR
    FROM Remote-Operations-Information-Objects {joint-iso-itu-t
      remote-operations(4) informationObjects(5) version2(1)}
  EXTENSION, Extension{}
    FROM Manufacturer-specific-service-extension-definition {itu-t
      recommendation h 450 1 version2(1) msi-definition(18)}
  H225InformationElement
    FROM H225-generic-parameters-definition {itu-t recommendation h 450 
      1 version2(1) h225-generic-parameters(6)}
  NonStandardParameter
    FROM H323-MESSAGES {itu-t(0) recommendation(0) h(8) h225-0(2250) 
      version(0) 7 h323-messages(0)} -- see ITU-T H.225.0
  EndpointAddress, PartySubaddress, PresentationAllowedIndicator
    FROM Addressing-Data-Elements {itu-t recommendation h 450 1 version2(1)
      addressing-data-elements(9)}
  userNotSubscribed, notAvailable, invalidServedUserNumber,
    basicServiceNotProvided, resourceUnavailable,
    supplementaryServiceInteractionNotAllowed
    FROM H4501-General-Error-List {itu-t recommendation h 450 1 version2(1)
      general-error-list(1)};

H323CallDiversionOperations OPERATION ::=
  {activateDiversionQ | deactivateDiversionQ | interrogateDiversionQ |
   checkRestriction | callRerouting | divertingLegInformation1 |
   divertingLegInformation2 | divertingLegInformation3 |
   divertingLegInformation4 | cfnrDivertedLegFailed}

activateDiversionQ OPERATION ::=
  { -- sent from the activating ITU-T h.323-endpoint to the served ITU-T h.323-endpoint

  ARGUMENT
    SEQUENCE {procedure          Procedure,
              basicService       BasicService,
              divertedToAddress  EndpointAddress,
              servedUserNr       EndpointAddress,
              activatingUserNr   EndpointAddress,
              extension
                CHOICE {extensionSeq     ExtensionSeq,
                        nonStandardData  NonStandardParameter} OPTIONAL,
              ...}
  RESULT
    CHOICE {extensionSeq     ExtensionSeq,
            nonStandardData  NonStandardParameter}
  OPTIONAL  TRUE
  ERRORS
    {userNotSubscribed | notAvailable | invalidServedUserNumber |
      basicServiceNotProvided | resourceUnavailable | invalidDivertedNumber |
      specialServiceNumber | diversionToServedUserNumber |
      temporarilyUnavailable | notAuthorized | unspecified}
  CODE      local:15
}

deactivateDiversionQ OPERATION ::=
  { -- sent from the deactivating ITU-T h.323-endpoint to the served ITU-T h.323-endpoint

  ARGUMENT
    SEQUENCE {procedure           Procedure,
              basicService        BasicService,
              servedUserNr        EndpointAddress,
              deactivatingUserNr  EndpointAddress,
              extension
                CHOICE {extensionSeq     ExtensionSeq,
                        nonStandardData  NonStandardParameter} OPTIONAL,
              ...}
  RESULT
    CHOICE {extensionSeq     ExtensionSeq,
            nonStandardData  NonStandardParameter}
  OPTIONAL  TRUE
  ERRORS
    {userNotSubscribed | notAvailable | invalidServedUserNumber |
      temporarilyUnavailable | notAuthorized | unspecified}
  CODE      local:16
}

interrogateDiversionQ OPERATION ::=
  { -- sent from the interrogating ITU-T h.323-endpoint to the served ITU-T h.323-endpoint

  ARGUMENT
    SEQUENCE {procedure            Procedure,
              basicService         BasicService DEFAULT allServices,
              servedUserNr         EndpointAddress,
              interrogatingUserNr  EndpointAddress,
              extension
                CHOICE {extensionSeq     ExtensionSeq,
                        nonStandardData  NonStandardParameter} OPTIONAL,
              ...}
  RESULT    IntResultList
  ERRORS
    {userNotSubscribed | notAvailable | invalidServedUserNumber |
      temporarilyUnavailable | notAuthorized | unspecified}
  CODE      local:17
}

checkRestriction OPERATION ::=
  { -- sent from the served ITU-T h.323-endpoint to the diverted-to ITU-T h.323-endpoint

  ARGUMENT
    SEQUENCE {servedUserNr  EndpointAddress,
              basicService  BasicService,
              divertedToNr  EndpointAddress,
              extension
                CHOICE {extensionSeq     ExtensionSeq,
                        nonStandardData  NonStandardParameter} OPTIONAL,
              ...}
  RESULT
    CHOICE {extensionSeq     ExtensionSeq,
            nonStandardData  NonStandardParameter}
  OPTIONAL  TRUE
  ERRORS
    {notAvailable | invalidServedUserNumber | invalidDivertedNumber |
      specialServiceNumber | unspecified}
  CODE      local:18
}

callRerouting OPERATION ::=
  { -- sent from the served ITU-T h.323-endpoint to the rerouting ITU-T h.323-endpoint

  ARGUMENT
    SEQUENCE {reroutingReason          DiversionReason,
              originalReroutingReason  DiversionReason OPTIONAL,
              calledAddress            EndpointAddress,
              diversionCounter         INTEGER(1..15),
              h225InfoElement          H225InformationElement,
              -- The ITU-T H.225.0 information elements Bearer capability, 
              -- High layer compatibility, Low layer compatibility and 
              -- Progress Indicator information element may be embedded 
              -- in the h225InfoElement in accordance with ITU-T H.450.1. 
              lastReroutingNr          EndpointAddress,
              subscriptionOption       SubscriptionOption,
              callingPartySubaddress   PartySubaddress OPTIONAL,
              callingNumber            EndpointAddress,
              callingInfo              BMPString(SIZE (1..128)) OPTIONAL,
              originalCalledNr         EndpointAddress OPTIONAL,
              redirectingInfo          BMPString(SIZE (1..128)) OPTIONAL,
              originalCalledInfo       BMPString(SIZE (1..128)) OPTIONAL,
              extension
                CHOICE {extensionSeq     ExtensionSeq,
                        nonStandardData  NonStandardParameter} OPTIONAL,
              ...}
  RESULT
    CHOICE {extensionSeq     ExtensionSeq,
            nonStandardData  NonStandardParameter}
  OPTIONAL  TRUE
  ERRORS
    {userNotSubscribed | notAvailable | resourceUnavailable |
      invalidDivertedNumber | specialServiceNumber |
      diversionToServedUserNumber | numberOfDiversionsExceeded |
      supplementaryServiceInteractionNotAllowed | unspecified}
  CODE      local:19
}

divertingLegInformation1 OPERATION ::=
  { -- sent from the re-routing ITU-T h.323-endpoint to the originating ITU-T h.323-endpoint  -- if the re-routing endpoint equals the originating endpoint, this operation 

  -- is not applicable; may also be sent from the rerouting endpoint to other 
  -- members of a conference, if subscription option allows. 
  ARGUMENT
    SEQUENCE {diversionReason     DiversionReason,
              subscriptionOption  SubscriptionOption,
              nominatedNr         EndpointAddress,
              nominatedInfo       BMPString(SIZE (1..128)) OPTIONAL,
              redirectingNr       EndpointAddress OPTIONAL,
              redirectingInfo     BMPString(SIZE (1..128)) OPTIONAL,
              extension
                CHOICE {extensionSeq     ExtensionSeq,
                        nonStandardData  NonStandardParameter} OPTIONAL,
              ...}
  RETURN RESULT    FALSE
  ALWAYS RESPONDS  FALSE
  CODE             local:20
}

divertingLegInformation2 OPERATION ::=
  { --sent from the re-routing ITU-T h.323-endpoint to the diverted-to ITU-T h.323-endpoint 

  ARGUMENT
    SEQUENCE {diversionCounter         INTEGER(1..15),
              diversionReason          DiversionReason,
              originalDiversionReason  DiversionReason OPTIONAL,
              divertingNr              EndpointAddress OPTIONAL,
              originalCalledNr         EndpointAddress OPTIONAL,
              redirectingInfo          BMPString(SIZE (1..128)) OPTIONAL,
              originalCalledInfo       BMPString(SIZE (1..128)) OPTIONAL,
              extension
                CHOICE {extensionSeq     ExtensionSeq,
                        nonStandardData  NonStandardParameter} OPTIONAL,
              ...}
  -- The divertingNr element is mandatory except in the case of interworking
  RETURN RESULT    FALSE
  ALWAYS RESPONDS  FALSE
  CODE             local:21
}

divertingLegInformation3 OPERATION ::=
  { --sent from the diverted-to ITU-T h.323-endpoint to the originating ITU-T h.323-endpoint

  ARGUMENT
    SEQUENCE {presentationAllowedIndicator  PresentationAllowedIndicator,
              redirectionNr                 EndpointAddress OPTIONAL,
              redirectionInfo               BMPString(SIZE (1..128)) OPTIONAL,
              extension
                CHOICE {extensionSeq     ExtensionSeq,
                        nonStandardData  NonStandardParameter} OPTIONAL,
              ...}
  RETURN RESULT    FALSE
  ALWAYS RESPONDS  FALSE
  CODE             local:22
}

divertingLegInformation4 OPERATION ::=
  { -- If call diversion in not performed by the forwarding terminal but by a -- gatekeeper, the gatekeeper may send divertingLegInformation4 apdu to the 

  -- forwarding terminal. 
  ARGUMENT
    SEQUENCE {diversionReason     DiversionReason,
              subscriptionOption  SubscriptionOption,
              callingNr           EndpointAddress,
              callingInfo         BMPString(SIZE (1..128)) OPTIONAL,
              nominatedNr         EndpointAddress,
              nominatedInfo       BMPString(SIZE (1..128)) OPTIONAL,
              extension
                CHOICE {extensionSeq     ExtensionSeq,
                        nonStandardData  NonStandardParameter} OPTIONAL,
              ...}
  RETURN RESULT    FALSE
  ALWAYS RESPONDS  FALSE
  CODE             local:100
}

cfnrDivertedLegFailed OPERATION ::=
  { -- sent from the rerouting ITU-T h.323-terminal to the served ITU-T h.323-endpoint

  ARGUMENT
    CHOICE {extensionSeq     ExtensionSeq,
            nonStandardData  NonStandardParameter}
  OPTIONAL         TRUE
  RETURN RESULT    FALSE
  ALWAYS RESPONDS  FALSE
  CODE             local:23
}

-- This indicates that the diverted-to leg has been cleared during SS-CFNR execution.
-- Definitions of general used data types:
DiversionReason ::= ENUMERATED {unknown(0), cfu(1), cfb(2), cfnr(3), ...
                                }

-- The value unknown is only used if received from another network when interworking.
IntResultList ::= SET SIZE (0..29) OF IntResult

IntResult ::= SEQUENCE {
  servedUserNr       EndpointAddress,
  basicService       BasicService,
  procedure          Procedure,
  divertedToAddress  EndpointAddress,
  remoteEnabled      BOOLEAN DEFAULT FALSE,
  extension
    CHOICE {extensionSeq     ExtensionSeq,
            nonStandardData  NonStandardParameter} OPTIONAL,
  ...
}

Procedure ::= ENUMERATED {cfu(0), cfb(1), cfnr(2), ...
                          }

SubscriptionOption ::= ENUMERATED {
  noNotification(0), notificationWithoutDivertedToNr(1),
  notificationWithDivertedToNr(2), ...
  }

specialServiceNumber ERROR ::= {CODE  local:14
}

diversionToServedUserNumber ERROR ::= {CODE  local:15
}

numberOfDiversionsExceeded ERROR ::= {CODE  local:24
}

temporarilyUnavailable ERROR ::= {CODE  local:1000
}

notAuthorized ERROR ::= {CODE  local:1007
}

unspecified ERROR ::= {
  PARAMETER
    CHOICE {extension    Extension{{ExtensionSet}},
            nonStandard  NonStandardParameter}
  CODE       local:1008
}

BasicService ::= ENUMERATED {
  allServices(0),
  -- speech (1),
  -- unrestrictedDigitalInformation (2),
  -- audio3.1KHz (3),
  -- telephony (32),
  -- teletex (33),
  -- telefaxGroup4Class1 (34),
  -- videotexSyntaxBased (35),
  -- videotelephony (36), 
  ...
  }

-- For multimedia calls the value "allServices" shall be used only. 
-- The usage of the other codepoints for multimedia calls is for further study.
ExtensionSeq ::= SEQUENCE OF Extension{{ExtensionSet}}

ExtensionSet EXTENSION ::=
  {...}

-- Actual values defined by individual manufacturers
END -- of Call-Diversion-Operations