IN-CS-1-Operations-appendix {itu-t recommendation q 1218 modules(0)
  cs-1-operations-app(4) version1(0)}
--  This module contains the type definitions for the IN CS-1 operations.
--  There may be functional redundancies in the operation set related to call processing.
--  This may make product interworking more difficult. Administrations wishing to deploy 
--  IN and equipment manufacturers implementing IN should take this into account.
DEFINITIONS ::=
BEGIN

IMPORTS
  OPERATION
    FROM Remote-Operations-Information-Objects {joint-iso-itu-t
      remote-operations(4) informationObjects(5) version1(0)}
  --  error types
  missingParameter, systemFailure, taskRefused, unexpectedComponentSequence,
    unexpectedDataValue, unexpectedParameter, unknownLegID, unknownResource
    FROM IN-CS-1-Errors {itu-t recommendation q 1218 modules(0) cs-1-errors(1)
      version1(0)}
  tooLate, legIDAlreadyAssigned, dataUnavailable, dataAlreadyExists
    FROM IN-CS-1-Errors-appendix {itu-t recommendation q 1218 modules(0)
      cs-1-errors-app(5) version1(0)}
  --  argument types
  AddPartyArg, CallPartyHandlingResultsArg, AttachArg, ChangePartiesArg,
    DetachArg, HoldCallPartyConnectionArg, ReconnectArg,
    ReleaseCallPartyConnectionArg
    FROM IN-CS-1-DataTypes-appendix {itu-t recommendation q 1218 modules(0)
      cs-1-datatypes-app(6) version1(0)}
  -- operation codes
  op-addParty, op-attach, op-changeParties, op-detach,
    op-holdCallPartyConnection, op-reconnect, op-releaseCallPartyConnection
    FROM IN-CS-1-Codes-appendix {itu-t recommendation q 1218 modules(0)
      cs-1-codes-app(7) version1(0)};

--  TYPE DEFINITIONS FOR    IN CS-1    OPERATIONS FOLLOWS
--  SCF-SSF operations
--  Operation codes
--  TYPE DEFINITION FOR ADDITIONAL	IN CS-1	OPERATIONS
--  SCF-SSF operations
addParty OPERATION ::= {
  ARGUMENT       AddPartyArg
  RESULT         CallPartyHandlingResultsArg
  RETURN RESULT  TRUE
  ERRORS
    {dataAlreadyExists | missingParameter | systemFailure | taskRefused |
      unexpectedComponentSequence | unexpectedDataValue | unexpectedParameter}
  CODE           op-addParty
}

--  SCF ? SSF
--  This operation is used to perform the call processing actions to add all call party connections 
--  from one Call to another Call, then clear the first Call (e.g. to create a conference call). 
--  From the perspective of the controlling party, this operation effectively bridges two Calls.
attach OPERATION ::= {
  ARGUMENT       AttachArg
  RETURN RESULT  FALSE
  ERRORS
    {dataAlreadyExists | legIDAlreadyAssigned | missingParameter |
      systemFailure | taskRefused | tooLate | unexpectedComponentSequence |
      unexpectedDataValue | unexpectedParameter}
  CODE           op-attach
}

--  SCF ? SSF
--  This operation is used to attach two Calls.
changeParties OPERATION ::= {
  ARGUMENT       ChangePartiesArg
  RESULT         CallPartyHandlingResultsArg
  RETURN RESULT  TRUE
  ERRORS
    {dataAlreadyExists | missingParameter | systemFailure | taskRefused |
      unexpectedComponentSequence | unexpectedDataValue | unexpectedParameter}
  CODE           op-changeParties
}

--  SCF ? SSF
--  This operation is used to perform the call processing actions to change a particular party 
--  connection from one Call to another Call. From the perspective of the particular call party, this
--  operation effectively places the first Call on hold and retrieves the associated Call from hold.
detach OPERATION ::= {
  ARGUMENT       DetachArg
  RETURN RESULT  FALSE
  ERRORS
    {dataAlreadyExists | missingParameter | systemFailure | taskRefused |
      tooLate | unexpectedComponentSequence | unexpectedDataValue |
      unexpectedParameter | unknownLegID}
  CODE           op-detach
}

--  SCF ? SSF
--  This operation is used to detach two Calls.
holdCallPartyConnection OPERATION ::= {
  ARGUMENT       HoldCallPartyConnectionArg
  RESULT         CallPartyHandlingResultsArg
  RETURN RESULT  TRUE
  ERRORS
    {dataUnavailable | missingParameter | systemFailure | taskRefused |
      unexpectedComponentSequence | unexpectedDataValue | unexpectedParameter}
  CODE           op-holdCallPartyConnection
}

--  SCF ? SSF
--  This operation is used during the active phase of a call between two or more parties to put one 
--  party connection on hold.
reconnect OPERATION ::= {
  ARGUMENT       ReconnectArg
  RESULT         CallPartyHandlingResultsArg
  RETURN RESULT  TRUE
  ERRORS
    {dataAlreadyExists | missingParameter | systemFailure | taskRefused |
      unexpectedComponentSequence | unexpectedDataValue | unexpectedParameter}
  CODE           op-reconnect
}

--  SCF ? SSF
--  This operation is used to resume a held party to a call (inverse of HoldCallPartyConnection).
releaseCallPartyConnection OPERATION ::= {
  ARGUMENT       ReleaseCallPartyConnectionArg
  RESULT         CallPartyHandlingResultsArg
  RETURN RESULT  TRUE
  ERRORS
    {dataAlreadyExists | missingParameter | systemFailure | taskRefused |
      unexpectedComponentSequence | unexpectedDataValue | unexpectedParameter}
  CODE           op-releaseCallPartyConnection
}

--  SCF ? SSF
--  This operation is used to release a call party connection during a call between two or more parties.
END