[asn2quickder] / testdata / H245v1.asn1

MULTIMEDIA-SYSTEM-CONTROL DEFINITIONS AUTOMATIC TAGS ::=
BEGIN

-- Export all symbols

-- ===================================================================================
-- Top level Messages
-- ===================================================================================

MultimediaSystemControlMessage  ::=CHOICE
{
        request RequestMessage,
        response        ResponseMessage,
        command CommandMessage,
        indication      IndicationMessage,
        ...
}

-- A RequestMessage results in action and requires an immediate response

RequestMessage  ::=CHOICE
{
        nonStandard     NonStandardMessage,

        masterSlaveDetermination        MasterSlaveDetermination,

        terminalCapabilitySet   TerminalCapabilitySet,

        openLogicalChannel      OpenLogicalChannel,
        closeLogicalChannel     CloseLogicalChannel,

        requestChannelClose     RequestChannelClose,

        multiplexEntrySend      MultiplexEntrySend,

        requestMultiplexEntry   RequestMultiplexEntry,

        requestMode     RequestMode,

        roundTripDelayRequest   RoundTripDelayRequest,

        maintenanceLoopRequest  MaintenanceLoopRequest,

        ...
}

-- A ResponseMessage is the response to a request Message

ResponseMessage ::=CHOICE
{
        nonStandard     NonStandardMessage,

        masterSlaveDeterminationAck     MasterSlaveDeterminationAck,
        masterSlaveDeterminationReject  MasterSlaveDeterminationReject,

        terminalCapabilitySetAck        TerminalCapabilitySetAck,
        terminalCapabilitySetReject     TerminalCapabilitySetReject,

        openLogicalChannelAck   OpenLogicalChannelAck,
        openLogicalChannelReject        OpenLogicalChannelReject,
        closeLogicalChannelAck  CloseLogicalChannelAck,

        requestChannelCloseAck  RequestChannelCloseAck,
        requestChannelCloseReject       RequestChannelCloseReject,

        multiplexEntrySendAck   MultiplexEntrySendAck,
        multiplexEntrySendReject        MultiplexEntrySendReject,

        requestMultiplexEntryAck        RequestMultiplexEntryAck,
        requestMultiplexEntryReject     RequestMultiplexEntryReject,

        requestModeAck  RequestModeAck,
        requestModeReject       RequestModeReject,

        roundTripDelayResponse  RoundTripDelayResponse,

        maintenanceLoopAck      MaintenanceLoopAck,
        maintenanceLoopReject   MaintenanceLoopReject,

        ...
}

-- A CommandMessage requires action, but no explicit response

CommandMessage  ::=CHOICE
{
        nonStandard     NonStandardMessage,

        maintenanceLoopOffCommand       MaintenanceLoopOffCommand,

        sendTerminalCapabilitySet       SendTerminalCapabilitySet,

        encryptionCommand       EncryptionCommand,

        flowControlCommand      FlowControlCommand,

        endSessionCommand       EndSessionCommand,

        miscellaneousCommand    MiscellaneousCommand,

        ...
}

-- An IndicationMessage is information that does not require action or response

IndicationMessage       ::=CHOICE
{
        nonStandard     NonStandardMessage,

        functionNotSupported    FunctionNotSupported,

        masterSlaveDeterminationRelease MasterSlaveDeterminationRelease,

        terminalCapabilitySetRelease    TerminalCapabilitySetRelease,

        openLogicalChannelConfirm       OpenLogicalChannelConfirm,

        requestChannelCloseRelease      RequestChannelCloseRelease,

        multiplexEntrySendRelease       MultiplexEntrySendRelease,

        requestMultiplexEntryRelease    RequestMultiplexEntryRelease,

        requestModeRelease      RequestModeRelease,

        miscellaneousIndication MiscellaneousIndication,

        jitterIndication        JitterIndication,

        h223SkewIndication      H223SkewIndication,

        newATMVCIndication      NewATMVCIndication,

        userInput       UserInputIndication,
        ...
}

-- SequenceNumber is defined here as it is used in a number of Messages
SequenceNumber  ::=INTEGER (0..255)

-- ===================================================================================
-- Non standard Message definitions
-- ===================================================================================

NonStandardMessage      ::=SEQUENCE
{
        nonStandardData NonStandardParameter,
        ...
}

NonStandardParameter    ::=SEQUENCE
{
        nonStandardIdentifier   NonStandardIdentifier,
        data            OCTET STRING
}

NonStandardIdentifier   ::=CHOICE
{
        object          OBJECT IDENTIFIER,
        h221NonStandard SEQUENCE
        {
                t35CountryCode  INTEGER (0..255),       -- country, per T.35
                t35Extension    INTEGER (0..255),       -- assigned nationally
                manufacturerCode        INTEGER (0..65535)      -- assigned nationally
        }
}

-- ===================================================================================
-- Master-slave determination definitions
-- ===================================================================================

MasterSlaveDetermination        ::=SEQUENCE
{
        terminalType    INTEGER (0..255),
        statusDeterminationNumber       INTEGER (0..16777215),
        ...
}

MasterSlaveDeterminationAck     ::=SEQUENCE
{
        decision        CHOICE
        {
                master  NULL,
                slave   NULL
        },
        ...
}

MasterSlaveDeterminationReject  ::=SEQUENCE
{
        cause           CHOICE
        {
                identicalNumbers        NULL,
                ...
        },
        ...
}

MasterSlaveDeterminationRelease ::=SEQUENCE
{
        ...
}


-- ===================================================================================
-- Capability exchange definitions
-- ===================================================================================

TerminalCapabilitySet   ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,

        protocolIdentifier      OBJECT IDENTIFIER,
                                -- shall be set to the value
                                -- {itu-t (0) recommendation (0) h (8) 245 version (0) 1}

        multiplexCapability     MultiplexCapability OPTIONAL,

        capabilityTable SET SIZE (1..256) OF CapabilityTableEntry OPTIONAL,

        capabilityDescriptors   SET SIZE (1..256) OF CapabilityDescriptor OPTIONAL,

        ...
}

V75Capability   ::=SEQUENCE
{
        audioHeader     BOOLEAN,
        ...
}

CapabilityTableEntry    ::=SEQUENCE
{
        capabilityTableEntryNumber      CapabilityTableEntryNumber,
        capability      Capability OPTIONAL
}

CapabilityDescriptor    ::=SEQUENCE
{
        capabilityDescriptorNumber      CapabilityDescriptorNumber,
        simultaneousCapabilities        SET SIZE (1..256) OF AlternativeCapabilitySet OPTIONAL
}

AlternativeCapabilitySet        ::=SEQUENCE SIZE (1..256) OF CapabilityTableEntryNumber

CapabilityTableEntryNumber      ::=INTEGER (1..65535)

CapabilityDescriptorNumber      ::=INTEGER (0..255)

TerminalCapabilitySetAck        ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,
        ...
}

TerminalCapabilitySetReject     ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,
        cause           CHOICE
        {
                unspecified     NULL,
                undefinedTableEntryUsed NULL,
                descriptorCapacityExceeded      NULL,
                tableEntryCapacityExceeded      CHOICE
                {
                        highestEntryNumberProcessed     CapabilityTableEntryNumber,
                        noneProcessed   NULL
                },
                ...
        },
        ...
}

TerminalCapabilitySetRelease    ::=SEQUENCE
{
        ...
}

-- ===================================================================================
-- Capability exchange definitions: top level capability description
-- ===================================================================================

Capability              ::=CHOICE
{
        nonStandard     NonStandardParameter,

        receiveVideoCapability  VideoCapability,
        transmitVideoCapability VideoCapability,
        receiveAndTransmitVideoCapability       VideoCapability,

        receiveAudioCapability  AudioCapability,
        transmitAudioCapability AudioCapability,
        receiveAndTransmitAudioCapability       AudioCapability,

        receiveDataApplicationCapability        DataApplicationCapability,
        transmitDataApplicationCapability       DataApplicationCapability,
        receiveAndTransmitDataApplicationCapability     DataApplicationCapability,

        h233EncryptionTransmitCapability        BOOLEAN,
        h233EncryptionReceiveCapability SEQUENCE
        {
                h233IVResponseTime      INTEGER (0..255),       -- units milliseconds   
                ...
        },
        ...
}

-- ===================================================================================
-- Capability exchange definitions: Multiplex capabilities
-- ===================================================================================

MultiplexCapability     ::=CHOICE
{
        nonStandard     NonStandardParameter,
        h222Capability  H222Capability,
        h223Capability  H223Capability,
        v76Capability   V76Capability,
        ...
}

H222Capability  ::= SEQUENCE
{
        numberOfVCs     INTEGER (1..256),
        vcCapability    SET OF VCCapability,
        ...
}

VCCapability    ::=SEQUENCE
{
        aal1            SEQUENCE
        {
                nullClockRecovery       BOOLEAN,
                srtsClockRecovery       BOOLEAN,
                adaptiveClockRecovery   BOOLEAN,
                nullErrorCorrection     BOOLEAN,
                longInterleaver BOOLEAN,
                shortInterleaver        BOOLEAN,
                errorCorrectionOnly     BOOLEAN,
                structuredDataTransfer  BOOLEAN,
                partiallyFilledCells    BOOLEAN,
                ...
        } OPTIONAL,
        aal5            SEQUENCE
        {
                forwardMaximumSDUSize   INTEGER (0..65535),     -- units octets
                backwardMaximumSDUSize  INTEGER (0..65535),     -- units octets
                ...
        } OPTIONAL,
        transportStream BOOLEAN,
        programStream   BOOLEAN,
        availableBitRates       SEQUENCE
        {
                type    CHOICE
                {
                        singleBitRate   INTEGER (1..65535),     -- units 64 kbits per second
                        rangeOfBitRates SEQUENCE
                        {
                                lowerBitRate    INTEGER (1..65535),     -- units 64 kbits per second
                                higherBitRate   INTEGER (1..65535)      -- units 64 kbits per second
                        }
                },
                ...
        },
        ...
}

H223Capability  ::=SEQUENCE
{
        transportWithI-frames   BOOLEAN,        -- I-frame transport of H.245

        videoWithAL1    BOOLEAN,
        videoWithAL2    BOOLEAN,
        videoWithAL3    BOOLEAN,
        audioWithAL1    BOOLEAN,
        audioWithAL2    BOOLEAN,
        audioWithAL3    BOOLEAN,
        dataWithAL1     BOOLEAN,
        dataWithAL2     BOOLEAN,
        dataWithAL3     BOOLEAN,

        maximumAl2SDUSize       INTEGER (0..65535),     -- units octets
        maximumAl3SDUSize       INTEGER (0..65535),     -- units octets

        maximumDelayJitter      INTEGER (0..1023),      -- units milliseconds

        h223MultiplexTableCapability    CHOICE
        {
                basic   NULL,
                enhanced        SEQUENCE
                {
                        maximumNestingDepth     INTEGER (1..15),
                        maximumElementListSize  INTEGER (2..255),
                        maximumSubElementListSize       INTEGER (2..255),
                        ...
                }
        },
        ...
}

V76Capability   ::=SEQUENCE
{
        suspendResumeCapabilitywAddress BOOLEAN,
        suspendResumeCapabilitywoAddress        BOOLEAN,
        rejCapability   BOOLEAN,
        sREJCapability  BOOLEAN,
        mREJCapability  BOOLEAN,
        crc8bitCapability       BOOLEAN,
        crc16bitCapability      BOOLEAN, 
        crc32bitCapability      BOOLEAN,
        uihCapability   BOOLEAN,
        numOfDLCS       INTEGER (2..8191),
        twoOctetAddressFieldCapability  BOOLEAN,
        loopBackTestCapability  BOOLEAN,
        n401Capability  INTEGER (1..4095),
        maxWindowSizeCapability INTEGER (1..127),
        v75Capability   V75Capability,
        ...
}

-- ===================================================================================
-- Capability exchange definitions: Video capabilities
-- ===================================================================================

VideoCapability ::=CHOICE
{
        nonStandard     NonStandardParameter ,
        h261VideoCapability     H261VideoCapability,
        h262VideoCapability     H262VideoCapability,
        h263VideoCapability     H263VideoCapability,
        is11172VideoCapability  IS11172VideoCapability,
        ...
}

H261VideoCapability     ::=SEQUENCE
{
        qcifMPI INTEGER (1..4) OPTIONAL,        -- units 1/29.97 Hz
        cifMPI          INTEGER (1..4) OPTIONAL,        -- units 1/29.97 Hz
        temporalSpatialTradeOffCapability       BOOLEAN,
        maxBitRate      INTEGER (1..19200),     -- units of 100 bits/s
        stillImageTransmission  BOOLEAN,        -- annex D of H.261
        ...
}

H262VideoCapability     ::=SEQUENCE
{
        profileAndLevel-SPatML  BOOLEAN,
        profileAndLevel-MPatLL  BOOLEAN,
        profileAndLevel-MPatML  BOOLEAN,
        profileAndLevel-MPatH-14        BOOLEAN,
        profileAndLevel-MPatHL  BOOLEAN,
        profileAndLevel-SNRatLL BOOLEAN,
        profileAndLevel-SNRatML BOOLEAN,
        profileAndLevel-SpatialatH-14   BOOLEAN,
        profileAndLevel-HPatML  BOOLEAN,
        profileAndLevel-HPatH-14        BOOLEAN,
        profileAndLevel-HPatHL  BOOLEAN,
        videoBitRate    INTEGER (0.. 1073741823) OPTIONAL,      -- units 400 bits/sec
        vbvBufferSize   INTEGER (0.. 262143) OPTIONAL,  -- units 16384 bits
        samplesPerLine  INTEGER (0..16383) OPTIONAL,    -- units samples/line
        linesPerFrame   INTEGER (0..16383) OPTIONAL,    -- units lines/frame
        framesPerSecond INTEGER (0..15) OPTIONAL,       -- frame_rate_code
        luminanceSampleRate     INTEGER (0..4294967295) OPTIONAL,       -- units samples/sec
        ...
}

H263VideoCapability     ::=SEQUENCE
{
        sqcifMPI        INTEGER (1..32) OPTIONAL,       -- units 1/29.97 Hz
        qcifMPI INTEGER (1..32) OPTIONAL,       -- units 1/29.97 Hz
        cifMPI          INTEGER (1..32) OPTIONAL,       -- units 1/29.97 Hz
        cif4MPI INTEGER (1..32) OPTIONAL,       -- units 1/29.97 Hz
        cif16MPI        INTEGER (1..32) OPTIONAL,       -- units 1/29.97 Hz
        maxBitRate      INTEGER (1..192400),    -- units 100 bits/s
        unrestrictedVector      BOOLEAN,
        arithmeticCoding        BOOLEAN,
        advancedPrediction      BOOLEAN,
        pbFrames        BOOLEAN,
        temporalSpatialTradeOffCapability       BOOLEAN,
        hrd-B           INTEGER (0..524287) OPTIONAL,   -- units 128 bits
        bppMaxKb        INTEGER (0..65535) OPTIONAL,    -- units 1024 bits
        ...
}

IS11172VideoCapability  ::=SEQUENCE
{
        constrainedBitstream    BOOLEAN,
        videoBitRate    INTEGER (0.. 1073741823) OPTIONAL,      -- units 400 bits/sec
        vbvBufferSize   INTEGER (0.. 262143) OPTIONAL,  -- units 16384 bits
        samplesPerLine  INTEGER (0..16383) OPTIONAL,    -- units samples/line
        linesPerFrame   INTEGER (0..16383) OPTIONAL,    -- units lines/frame
        pictureRate     INTEGER (0..15) OPTIONAL,       
        luminanceSampleRate     INTEGER (0..4294967295) OPTIONAL,       -- units samples/sec
        ...
}

-- ===================================================================================
-- Capability exchange definitions: Audio capabilities
-- ===================================================================================

-- For an H.222 multiplex, the integers indicate the size of the STD buffer in units of 256 octets
-- For an H.223 multiplex, the integers indicate the maximum number of audio frames per AL-SDU

AudioCapability ::=CHOICE
{
        nonStandard     NonStandardParameter,
        g711Alaw64k     INTEGER (1..256),
        g711Alaw56k     INTEGER (1..256),
        g711Ulaw64k     INTEGER (1..256),
        g711Ulaw56k     INTEGER (1..256),

        g722-64k        INTEGER (1..256),
        g722-56k        INTEGER (1..256),
        g722-48k        INTEGER (1..256),

        g7231           SEQUENCE
        {
                maxAl-sduAudioFrames    INTEGER (1..256),
                silenceSuppression      BOOLEAN
        },
                                        g728            INTEGER (1..256),
        g729            INTEGER (1..256),
        g729AnnexA      INTEGER (1..256),
        is11172AudioCapability  IS11172AudioCapability,
        is13818AudioCapability  IS13818AudioCapability,
         ...
}

IS11172AudioCapability  ::=SEQUENCE
{
        audioLayer1     BOOLEAN,
        audioLayer2     BOOLEAN,
        audioLayer3     BOOLEAN,

        audioSampling32k        BOOLEAN,
        audioSampling44k1       BOOLEAN,
        audioSampling48k        BOOLEAN,

        singleChannel   BOOLEAN,
        twoChannels     BOOLEAN,

        bitRate INTEGER (1..448),       -- units kbits/sec
        ...
}

IS13818AudioCapability  ::=SEQUENCE
{
        audioLayer1     BOOLEAN,
        audioLayer2     BOOLEAN,
        audioLayer3     BOOLEAN,

        audioSampling16k        BOOLEAN,
        audioSampling22k05      BOOLEAN,
        audioSampling24k        BOOLEAN,
        audioSampling32k        BOOLEAN,
        audioSampling44k1       BOOLEAN,
        audioSampling48k        BOOLEAN,

        singleChannel   BOOLEAN,
        twoChannels     BOOLEAN,
        threeChannels2-1        BOOLEAN,
        threeChannels3-0        BOOLEAN,
        fourChannels2-0-2-0     BOOLEAN,
        fourChannels2-2 BOOLEAN,
        fourChannels3-1 BOOLEAN,
        fiveChannels3-0-2-0     BOOLEAN,
        fiveChannels3-2 BOOLEAN,

        lowFrequencyEnhancement BOOLEAN,

        multilingual    BOOLEAN,

        bitRate INTEGER (1..1130),      -- units kbits/sec
        ...
}

-- ===================================================================================
-- Capability exchange definitions: Data capabilities
-- ===================================================================================

DataApplicationCapability       ::=SEQUENCE
{
        application     CHOICE
        {
                nonStandard     NonStandardParameter,
                t120    DataProtocolCapability,
                dsm-cc  DataProtocolCapability,
                userData        DataProtocolCapability,
                t84     SEQUENCE
                {
                        t84Protocol     DataProtocolCapability,
                        t84Profile      T84Profile
                },
                t434    DataProtocolCapability,
                h224    DataProtocolCapability,
                nlpid   SEQUENCE
                {
                        nlpidProtocol   DataProtocolCapability,
                        nlpidData       OCTET STRING
                },
                dsvdControl     NULL,
                h222DataPartitioning    DataProtocolCapability,
                ...
        },
        maxBitRate      INTEGER (0..4294967295),        -- units 100 bits/sec
        ...
}

DataProtocolCapability  ::=CHOICE
{
        nonStandard     NonStandardParameter,
        v14buffered     NULL,
        v42lapm NULL,   -- may negotiate to V.42bis
        hdlcFrameTunnelling     NULL,
        h310SeparateVCStack     NULL,
        h310SingleVCStack       NULL,
        transparent     NULL,
        ...
}

T84Profile              ::=CHOICE
{
        t84Unrestricted NULL,
        t84Restricted   SEQUENCE
        {
                qcif    BOOLEAN,
                cif             BOOLEAN,
                ccir601Seq      BOOLEAN,
                ccir601Prog     BOOLEAN,
                hdtvSeq BOOLEAN,
                hdtvProg        BOOLEAN,

                g3FacsMH200x100 BOOLEAN,
                g3FacsMH200x200 BOOLEAN,
                g4FacsMMR200x100        BOOLEAN,
                g4FacsMMR200x200        BOOLEAN,
                jbig200x200Seq  BOOLEAN,
                jbig200x200Prog BOOLEAN,
                jbig300x300Seq  BOOLEAN,
                jbig300x300Prog BOOLEAN,

                digPhotoLow     BOOLEAN,
                digPhotoMedSeq  BOOLEAN,
                digPhotoMedProg BOOLEAN,
                digPhotoHighSeq BOOLEAN,
                digPhotoHighProg        BOOLEAN,

                ...
        }
}


-- ===================================================================================
-- Logical channel signalling definitions
-- ===================================================================================

-- 'Forward' is used to refer to transmission in the direction from the terminal making the
-- original request for a logical channel to the other terminal, and 'reverse' is used to refer
-- to the opposite direction of transmission, in the case of a bi-directional channel request.

OpenLogicalChannel      ::=SEQUENCE
{
        forwardLogicalChannelNumber     LogicalChannelNumber,

        forwardLogicalChannelParameters SEQUENCE
        {
                portNumber      INTEGER (0..65535) OPTIONAL,
                dataType        DataType,
                multiplexParameters     CHOICE
                {
                        h222LogicalChannelParameters    H222LogicalChannelParameters,
                        h223LogicalChannelParameters    H223LogicalChannelParameters,
                        v76LogicalChannelParameters V76LogicalChannelParameters,
                        ...
                },
                ...
        },

        -- Used to specify the reverse channel for bi-directional open request

        reverseLogicalChannelParameters SEQUENCE
        {
                dataType        DataType,
                multiplexParameters     CHOICE
                {
                        -- H.222 parameters are never present in reverse direction
                        h223LogicalChannelParameters    H223LogicalChannelParameters,
                        v76LogicalChannelParameters     V76LogicalChannelParameters,
                        ...
                } OPTIONAL,     -- Not present for H.222
                ...
        } OPTIONAL,     -- Not present for uni-directional channel request
        ...
}

LogicalChannelNumber    ::=INTEGER (1..65535)

V75Parameters   ::= SEQUENCE
{
        audioHeaderPresent      BOOLEAN,
         ...
}       



DataType                ::=CHOICE
{
        nonStandard     NonStandardParameter,
        nullData        NULL,
        videoData       VideoCapability,        
        audioData       AudioCapability,
        data            DataApplicationCapability,
        encryptionData  EncryptionMode,
        ...
}


H222LogicalChannelParameters    ::=SEQUENCE
{
        resourceID      INTEGER (0..65535),
        subChannelID    INTEGER (0..8191),
        pcr-pid INTEGER (0..8191) OPTIONAL,
        programDescriptors      OCTET STRING OPTIONAL,
        streamDescriptors       OCTET STRING OPTIONAL,
        ...
}

H223LogicalChannelParameters    ::=SEQUENCE
{
        adaptationLayerType     CHOICE
        {
                nonStandard     NonStandardParameter,
                al1Framed       NULL,
                al1NotFramed    NULL,
                al2WithoutSequenceNumbers       NULL,
                al2WithSequenceNumbers  NULL,
                al3             SEQUENCE
                {
                        controlFieldOctets      INTEGER (0..2),
                        sendBufferSize  INTEGER (0..16777215)   -- units octets
                },

                ...
        },

        segmentableFlag BOOLEAN,
        ...
}       

V76LogicalChannelParameters     ::=SEQUENCE
{
        hdlcParameters  V76HDLCParameters,
        suspendResume   CHOICE
        { 
                wAddress        NULL,
                woAddress       NULL,
                ...
        },
        uIH                     BOOLEAN,
        mode            CHOICE
        {
                eRM     SEQUENCE
                {
                        windowSize      INTEGER (1..127) ,
                        recovery        CHOICE
                        {
                                rej     NULL,
                                sREJ    NULL,
                                mSREJ   NULL,
                                ...
                        },
                        ...
                },
                uNERM   NULL,
                ...
        },
        v75Parameters   V75Parameters,
        ...
}

V76HDLCParameters       ::=SEQUENCE
{
        crcLength       CRCLength,
        n401            INTEGER (1..127),
        loopbackTestProcedure   BOOLEAN,
                ...
}



CRCLength       ::=CHOICE
{
        crc8bit         NULL,
        crc16bit        NULL,
        crc32bit        NULL,
        ...
}

OpenLogicalChannelAck   ::=SEQUENCE
{
        forwardLogicalChannelNumber     LogicalChannelNumber,

        reverseLogicalChannelParameters SEQUENCE
        {
                reverseLogicalChannelNumber     LogicalChannelNumber,
                portNumber      INTEGER (0..65535) OPTIONAL,
                multiplexParameters     CHOICE
                {
                        h222LogicalChannelParameters    H222LogicalChannelParameters,
                        -- H.223 parameters are never present in reverse direction
                        ...
                } OPTIONAL,     -- Not present for H.223
                ...

        } OPTIONAL,     -- Not present for uni-directional channel request
        ...
}

OpenLogicalChannelReject        ::=SEQUENCE
{
        forwardLogicalChannelNumber     LogicalChannelNumber,
        cause           CHOICE
        {
                unspecified     NULL,
                unsuitableReverseParameters     NULL,
                dataTypeNotSupported    NULL,
                dataTypeNotAvailable    NULL,
                unknownDataType NULL,
                dataTypeALCombinationNotSupported       NULL,
                ...
        },
        ...
}

OpenLogicalChannelConfirm       ::=SEQUENCE
{
        forwardLogicalChannelNumber     LogicalChannelNumber,
        ...
}

CloseLogicalChannel     ::=SEQUENCE
{
        forwardLogicalChannelNumber     LogicalChannelNumber,
        source          CHOICE
        {
                user    NULL,
                lcse    NULL
        },
        ...
}

CloseLogicalChannelAck  ::=SEQUENCE
{
        forwardLogicalChannelNumber     LogicalChannelNumber,
        ...
}

RequestChannelClose     ::=SEQUENCE
{
        forwardLogicalChannelNumber     LogicalChannelNumber,
        ...
}

RequestChannelCloseAck  ::=SEQUENCE
{
        forwardLogicalChannelNumber     LogicalChannelNumber,
        ...
}

RequestChannelCloseReject       ::=SEQUENCE
{
        forwardLogicalChannelNumber     LogicalChannelNumber,
        cause           CHOICE
        {
                unspecified     NULL,
                ...
        },
        ...
}

RequestChannelCloseRelease      ::=SEQUENCE
{
        forwardLogicalChannelNumber     LogicalChannelNumber,
        ...
}


-- ===================================================================================
-- H.223 multiplex table definitions
-- ===================================================================================

MultiplexEntrySend      ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,
        multiplexEntryDescriptors       SET SIZE (1..15) OF MultiplexEntryDescriptor,
        ...
}

MultiplexEntryDescriptor        ::=SEQUENCE
{
        multiplexTableEntryNumber       MultiplexTableEntryNumber,
        elementList     SEQUENCE SIZE (1..256) OF MultiplexElement OPTIONAL
}

MultiplexElement        ::=SEQUENCE
{
        type            CHOICE
        {
                logicalChannelNumber    INTEGER(0..65535),
                subElementList  SEQUENCE SIZE (2..255) OF MultiplexElement
        },
        repeatCount     CHOICE
        {
                finite  INTEGER (1..65535),     -- repeats of type
                untilClosingFlag        NULL    -- used for last element 
        }
}

MultiplexTableEntryNumber       ::=INTEGER (1..15)

MultiplexEntrySendAck   ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,
        multiplexTableEntryNumber       SET SIZE (1..15) OF MultiplexTableEntryNumber,
        ...
}

MultiplexEntrySendReject        ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,
        rejectionDescriptions   SET SIZE (1..15) OF MultiplexEntryRejectionDescriptions,
        ...
}

MultiplexEntryRejectionDescriptions     ::=SEQUENCE
{
        multiplexTableEntryNumber       MultiplexTableEntryNumber,
        cause           CHOICE
        {
                unspecifiedCause        NULL,
                descriptorTooComplex    NULL,
                ...
        },
        ...
}

MultiplexEntrySendRelease       ::=SEQUENCE
{
        multiplexTableEntryNumber       SET SIZE (1..15) OF MultiplexTableEntryNumber,
        ...
}

RequestMultiplexEntry   ::=SEQUENCE
{
        entryNumbers    SET SIZE (1..15) OF MultiplexTableEntryNumber,
        ...
}

RequestMultiplexEntryAck        ::=SEQUENCE
{
        entryNumbers    SET SIZE (1..15) OF MultiplexTableEntryNumber,
        ...
}

RequestMultiplexEntryReject     ::=SEQUENCE
{
        entryNumbers    SET SIZE (1..15) OF MultiplexTableEntryNumber,
        rejectionDescriptions   SET SIZE (1..15) OF RequestMultiplexEntryRejectionDescriptions,
        ...
}

RequestMultiplexEntryRejectionDescriptions      ::=SEQUENCE
{
        multiplexTableEntryNumber       MultiplexTableEntryNumber,
        cause           CHOICE
        {
                unspecifiedCause        NULL,
                ...
        },
        ...
}

RequestMultiplexEntryRelease    ::=SEQUENCE
{
        entryNumbers    SET SIZE (1..15) OF MultiplexTableEntryNumber,
        ...
}


-- ===================================================================================
-- Request mode definitions
-- ===================================================================================

-- RequestMode is a list, in order or preference, of modes that a terminal would like
-- to have transmitted to it.

RequestMode     ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,
        requestedModes  SEQUENCE SIZE (1..256) OF ModeDescription,
        ...
}

RequestModeAck  ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,
        response        CHOICE
        {
                willTransmitMostPreferredMode   NULL,
                willTransmitLessPreferredMode   NULL,
                ...
        },
        ...
}

RequestModeReject       ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,
        cause           CHOICE
        {
                modeUnavailable NULL,
                multipointConstraint    NULL,
                requestDenied   NULL,
                ...
        },
        ...
}

RequestModeRelease      ::=SEQUENCE
{
        ...
}

-- ===================================================================================
-- Request mode definitions: Mode description
-- ===================================================================================

ModeDescription ::=SET SIZE (1..256) OF ModeElement

ModeElement     ::= SEQUENCE
{
        type            CHOICE
        {
                nonStandard     NonStandardParameter,
                videoMode       VideoMode,
                audioMode       AudioMode,
                dataMode        DataMode,
                encryptionMode  EncryptionMode,
                ...
        },

        h223ModeParameters      H223ModeParameters OPTIONAL,
        ...
}

H223ModeParameters      ::=SEQUENCE
{
        adaptationLayerType     CHOICE
        {
                nonStandard     NonStandardParameter,
                al1Framed       NULL,
                al1NotFramed    NULL,
                al2WithoutSequenceNumbers       NULL,
                al2WithSequenceNumbers  NULL,
                al3             SEQUENCE
                {
                        controlFieldOctets      INTEGER(0..2),
                        sendBufferSize  INTEGER(0..16777215)    -- units octets
                },

                ...
        },

        segmentableFlag BOOLEAN,
        ...
}

 

-- ===================================================================================
-- Request mode definitions: Video modes
-- ===================================================================================

VideoMode               ::=CHOICE
{
        nonStandard     NonStandardParameter,
        h261VideoMode   H261VideoMode,
        h262VideoMode   H262VideoMode,
        h263VideoMode   H263VideoMode,
        is11172VideoMode        IS11172VideoMode,
        ...
}

H261VideoMode   ::=SEQUENCE
{
        resolution      CHOICE
        {
                qcif    NULL,
                cif             NULL
        },
        bitRate INTEGER (1..19200),     -- units 100 bits/s
        stillImageTransmission  BOOLEAN,
        ...
}

H262VideoMode   ::=SEQUENCE
{
        profileAndLevel CHOICE
        {
                profileAndLevel-SPatML  NULL,
                profileAndLevel-MPatLL  NULL,
                profileAndLevel-MPatML  NULL,
                profileAndLevel-MPatH-14        NULL,
                profileAndLevel-MPatHL  NULL,
                profileAndLevel-SNRatLL NULL,
                profileAndLevel-SNRatML NULL,
                profileAndLevel-SpatialatH-14   NULL,
                profileAndLevel-HPatML  NULL,
                profileAndLevel-HPatH-14        NULL,
                profileAndLevel-HPatHL  NULL,
                ...
        },
        videoBitRate    INTEGER(0..1073741823) OPTIONAL,        -- units 400bits/sec
        vbvBufferSize   INTEGER(0..262143) OPTIONAL,    -- units 16384bits
        samplesPerLine  INTEGER(0..16383) OPTIONAL,     -- units samples/line
        linesPerFrame   INTEGER(0..16383) OPTIONAL,     -- units lines/frame
        framesPerSecond INTEGER(0..15) OPTIONAL,        -- frame_rate_code
        luminanceSampleRate     INTEGER(0..4294967295) OPTIONAL,        -- units samples/sec
        ...
}

H263VideoMode   ::=SEQUENCE
{
        resolution      CHOICE
        {
                sqcif   NULL,   
                qcif    NULL,
                cif             NULL,
                cif4    NULL,
                cif16   NULL,
                ...
        },
        bitRate INTEGER (1..19200),     -- units 100 bits/s
        unrestrictedVector      BOOLEAN,
        arithmeticCoding        BOOLEAN,
        advancedPrediction      BOOLEAN,
        pbFrames        BOOLEAN,
        ...
}

IS11172VideoMode        ::=SEQUENCE
{
        constrainedBitstream    BOOLEAN,
        videoBitRate    INTEGER(0..1073741823) OPTIONAL,        -- units 400bits/sec
        vbvBufferSize   INTEGER(0..262143) OPTIONAL,    -- units 16384bits
        samplesPerLine  INTEGER(0..16383) OPTIONAL,     -- units samples/line
        linesPerFrame   INTEGER(0..16383) OPTIONAL,     -- units lines/frame
        pictureRate     INTEGER(0..15) OPTIONAL,
        luminanceSampleRate     INTEGER(0..4294967295) OPTIONAL,        -- units samples/sec
        ...
}

-- ===================================================================================
-- Request mode definitions: Audio modes
-- ===================================================================================

AudioMode       ::=CHOICE
{
        nonStandard     NonStandardParameter,
        g711Alaw64k     NULL,
        g711Alaw56k     NULL,
        g711Ulaw64k     NULL,
        g711Ulaw56k     NULL,

        g722-64k        NULL,
        g722-56k        NULL,
        g722-48k        NULL,

        g728            NULL,
        g729            NULL,
        g-dsvd          NULL,

        g7231           CHOICE
        {
                noSilenceSuppressionLowRate     NULL,
                noSilenceSuppressionHighRate    NULL,
                silenceSuppressionLowRate       NULL,
                silenceSuppressionHighRate      NULL
        },

        is11172AudioMode        IS11172AudioMode,
        is13818AudioMode        IS13818AudioMode,

        ...
}

IS11172AudioMode        ::=SEQUENCE
{
        audioLayer      CHOICE
        {
                audioLayer1     NULL,
                audioLayer2     NULL,
                audioLayer3     NULL
        },

        audioSampling   CHOICE
        {
                audioSampling32k        NULL,
                audioSampling44k1       NULL,
                audioSampling48k        NULL
        },

        multichannelType        CHOICE
        {
                singleChannel   NULL,
                twoChannelStereo        NULL,
                twoChannelDual  NULL
        },

        bitRate INTEGER (1..448),       --units kbit/sec
        ...
}

IS13818AudioMode        ::=SEQUENCE
{
        audioLayer      CHOICE
        {
                audioLayer1     NULL,
                audioLayer2     NULL,
                audioLayer3     NULL
        },

        audioSampling   CHOICE
        {
                audioSampling16k        NULL,
                audioSampling22k05      NULL,
                audioSampling24k        NULL,
                audioSampling32k        NULL,
                audioSampling44k1       NULL,
                audioSampling48k        NULL
        },

        multichannelType        CHOICE
        {
                singleChannel   NULL,
                twoChannelStereo        NULL,
                twoChannelDual  NULL,
                threeChannels2-1        NULL,
                threeChannels3-0        NULL,
                fourChannels2-0-2-0     NULL,
                fourChannels2-2 NULL,
                fourChannels3-1 NULL,
                fiveChannels3-0-2-0     NULL,
                fiveChannels3-2 NULL
        },

        lowFrequencyEnhancement BOOLEAN,

        multilingual    BOOLEAN,

        bitRate INTEGER (1..1130),      --units kbit/sec
        ...
}

-- ===================================================================================
-- Request mode definitions: Data modes
-- ===================================================================================

DataMode                ::=SEQUENCE
{
        application     CHOICE
        {
                nonStandard     NonStandardParameter,
                t120    DataProtocolCapability,
                dsm-cc  DataProtocolCapability,
                userData        DataProtocolCapability,
                t84     DataProtocolCapability,
                t434    DataProtocolCapability,
                h224    DataProtocolCapability,
                nlpid   SEQUENCE
                {
                        nlpidProtocol   DataProtocolCapability,
                        nlpidData       OCTET STRING
                },
                dsvdControl     NULL,
                h222DataPartitioning    DataProtocolCapability,
                ...
        },
        bitRate INTEGER (0..4294967295),        -- units 100 bits/sec
        ...
}

-- ===================================================================================
-- Request mode definitions: Encryption modes
-- ===================================================================================

EncryptionMode  ::=CHOICE
{
        nonStandard     NonStandardParameter,
        h233Encryption  NULL,
        ...
}


-- ===================================================================================
-- Round Trip Delay definitions
-- ===================================================================================

RoundTripDelayRequest   ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,
        ...
}

RoundTripDelayResponse  ::=SEQUENCE
{
        sequenceNumber  SequenceNumber,
        ...
}

-- ===================================================================================
-- Maintenance Loop definitions
-- ===================================================================================

MaintenanceLoopRequest  ::=SEQUENCE
{
        type            CHOICE
        {
                systemLoop      NULL,
                mediaLoop       LogicalChannelNumber,
                logicalChannelLoop      LogicalChannelNumber,
                ...
        },
        ...
}

MaintenanceLoopAck      ::=SEQUENCE
{
        type            CHOICE
        {
                systemLoop      NULL,
                mediaLoop       LogicalChannelNumber,
                logicalChannelLoop      LogicalChannelNumber,
                ...
        },
        ...
}

MaintenanceLoopReject   ::=SEQUENCE
{
        type            CHOICE
        {
                systemLoop      NULL,
                mediaLoop       LogicalChannelNumber,
                logicalChannelLoop      LogicalChannelNumber,
                ...
        },
        cause           CHOICE
        {
                canNotPerformLoop       NULL,
                ...
        },
        ...
}

MaintenanceLoopOffCommand       ::=SEQUENCE
{
        ...
}


-- ===================================================================================
-- Command Message definitions
-- ===================================================================================

-- ===================================================================================
-- Command Message : Send Terminal Capability Set
-- ===================================================================================

SendTerminalCapabilitySet       ::=CHOICE
{
        specificRequest SEQUENCE
        {
                multiplexCapability     BOOLEAN,

                capabilityTableEntryNumbers     SET SIZE (1..65535) OF CapabilityTableEntryNumber OPTIONAL,

                capabilityDescriptorNumbers     SET SIZE (1..256) OF CapabilityDescriptorNumber OPTIONAL,
                ...
        },
        genericRequest  NULL,
        ...
}

-- ===================================================================================
-- Command Message : Encryption
-- ===================================================================================

EncryptionCommand       ::=CHOICE
{
        encryptionSE    OCTET STRING,   -- per H.233, but no error protection
        encryptionIVRequest     NULL,   -- requests new IV
        encryptionAlgorithmID   SEQUENCE
        {
                h233AlgorithmIdentifier SequenceNumber,
                associatedAlgorithm     NonStandardParameter
        },
        ...
}

-- ===================================================================================
-- Command Message : Flow Control
-- ===================================================================================

FlowControlCommand      ::=SEQUENCE
{
        scope           CHOICE
        {
                logicalChannelNumber    LogicalChannelNumber,
                resourceID      INTEGER (0..65535),
                wholeMultiplex  NULL
        },
        restriction     CHOICE
        {
                maximumBitRate  INTEGER (0..16777215),  -- units 100 bits per second 
                noRestriction   NULL
        },
        ...
}

-- ===================================================================================
-- Command Message : Change or End Session
-- ===================================================================================

EndSessionCommand       ::=CHOICE
{
        nonStandard     NonStandardParameter,

        disconnect      NULL,

        gstnOptions     CHOICE
        {
                telephonyMode   NULL,
                v8bis   NULL,
                v34DSVD NULL,
                v34DuplexFAX    NULL,
                v34H324 NULL,
                ...
        },

        ...
}

-- ===================================================================================
-- Command Message : Miscellaneous H.230-like commands
-- ===================================================================================

MiscellaneousCommand    ::=SEQUENCE
{
        logicalChannelNumber    LogicalChannelNumber,
        type            CHOICE
        {
                equaliseDelay   NULL,   -- same as H.230 ACE
                zeroDelay       NULL,   -- same as H.230 ACZ
                multipointModeCommand   NULL,
                cancelMultipointModeCommand     NULL,
                videoFreezePicture      NULL,
                videoFastUpdatePicture  NULL,

                videoFastUpdateGOB      SEQUENCE
                {
                        firstGOB        INTEGER (0..17),
                        numberOfGOBs    INTEGER (1..18)
                },

                videoTemporalSpatialTradeOff    INTEGER (0..31),        -- commands a trade-off value

                videoSendSyncEveryGOB   NULL,
                videoSendSyncEveryGOBCancel     NULL,

                ...
        },

        ...
}


-- ===================================================================================
-- Indication Message definitions
-- ===================================================================================

-- ===================================================================================
-- Indication Message : Function not supported
-- ===================================================================================

-- This is used to return a complete request, response or command that is not recognised

FunctionNotSupported    ::=CHOICE
{
        request RequestMessage,
        response        ResponseMessage,
        command CommandMessage
}

-- ===================================================================================
-- Indication Message : Miscellaneous H.230-like indication
-- ===================================================================================

MiscellaneousIndication ::=SEQUENCE
{
        logicalChannelNumber    LogicalChannelNumber,
        type            CHOICE
        {
                logicalChannelActive    NULL,   -- same as H.230 AIA and VIA
                logicalChannelInactive  NULL,   -- same as H.230 AIM and VIS

                multipointConference    NULL,   
                cancelMultipointConference      NULL,   

                multipointZeroComm      NULL,   -- same as H.230 MIZ
                cancelMultipointZeroComm        NULL,   -- same as H.230 cancel MIZ

                multipointSecondaryStatus       NULL,   -- same as H.230 MIS
                cancelMultipointSecondaryStatus NULL,   -- same as H.230 cancel MIS

                videoIndicateReadyToActivate    NULL,   -- same as H.230 VIR

                videoTemporalSpatialTradeOff    INTEGER (0..31),        -- indicates current trade-off

                ...
        },
        ...
}

-- ===================================================================================
-- Indication Message : Jitter Indication
-- ===================================================================================

JitterIndication        ::=SEQUENCE
{
        scope           CHOICE
        {
                logicalChannelNumber    LogicalChannelNumber,
                resourceID      INTEGER (0..65535),
                wholeMultiplex  NULL
        },
        estimatedReceivedJitterMantissa INTEGER (0..3),
        estimatedReceivedJitterExponent INTEGER (0..7),
        skippedFrameCount       INTEGER (0..15) OPTIONAL,
        additionalDecoderBuffer INTEGER (0..262143) OPTIONAL,   -- 262143 is 2^18 - 1
        ...
}

-- ===================================================================================
-- Indication Message : H.223 logical channel skew
-- ===================================================================================

H223SkewIndication      ::=SEQUENCE
{
        logicalChannelNumber1   LogicalChannelNumber,
        logicalChannelNumber2   LogicalChannelNumber,
        skew            INTEGER (0..4095),      -- units milliseconds
        ...
}

-- ===================================================================================
-- Indication Message : New ATM virtual channel indication
-- ===================================================================================

NewATMVCIndication      ::=SEQUENCE
{
        resourceID      INTEGER(0..65535),
        bitRate INTEGER(1..65535),      -- units 64 kbits per second
        bitRateLockedToPCRClock BOOLEAN,
        bitRateLockedToNetworkClock     BOOLEAN,
        aal                     CHOICE
        {
                aal1    SEQUENCE
                {
                        clockRecovery   CHOICE
                        {
                                nullClockRecovery       NULL,
                                srtsClockRecovery       NULL,
                                adaptiveClockRecovery   NULL,
                                ...
                        },
                        errorCorrection CHOICE
                        {
                                nullErrorCorrection     NULL,
                                longInterleaver NULL,
                                shortInterleaver        NULL,
                                errorCorrectionOnly     NULL,
                                ...
                        },
                        structuredDataTransfer  BOOLEAN,
                        partiallyFilledCells    BOOLEAN,
                        ...
                },
                aal5    SEQUENCE
                {
                        forwardMaximumSDUSize   INTEGER (0..65535),     -- units octets
                        backwardMaximumSDUSize  INTEGER (0..65535),     -- units octets
                        ...
                },
                ...
        },
        multiplex       CHOICE
        {
                noMultiplex     NULL,
                transportStream NULL,
                programStream   NULL,
                ...
        },
        ...
}

-- ===================================================================================
-- Indication Message : user input
-- ===================================================================================

UserInputIndication     ::=CHOICE
{
        nonStandard     NonStandardParameter,
        alphanumeric    GeneralString,
        ...
}


END