LINEADDRESSCAPS

The LINEADDRESSCAPS structure describes the capabilities of a specified address.

typedef struct lineaddresscaps_tag {
    DWORD  dwTotalSize;
    DWORD  dwNeededSize;
    DWORD  dwUsedSize;

    DWORD  dwLineDeviceID;

    DWORD  dwAddressSize;
    DWORD  dwAddressOffset;

    DWORD  dwDevSpecificSize;
    DWORD  dwDevSpecificOffset;

    DWORD  dwAddressSharing;
    DWORD  dwAddressStates;
    DWORD  dwCallInfoStates;
    DWORD  dwCallerIDFlags;
    DWORD  dwCalledIDFlags;
    DWORD  dwConnectedIDFlags;
    DWORD  dwRedirectionIDFlags;
    DWORD  dwRedirectingIDFlags;
    DWORD  dwCallStates;
    DWORD  dwDialToneModes;
    DWORD  dwBusyModes;
    DWORD  dwSpecialInfo;
    DWORD  dwDisconnectModes;

    DWORD  dwMaxNumActiveCalls;
    DWORD  dwMaxNumOnHoldCalls;
    DWORD  dwMaxNumOnHoldPendingCalls;
    DWORD  dwMaxNumConference;
    DWORD  dwMaxNumTransConf;

    DWORD  dwAddrCapFlags;
    DWORD  dwCallFeatures;
    DWORD  dwRemoveFromConfCaps;
    DWORD  dwRemoveFromConfState;
    DWORD  dwTransferModes;
    DWORD  dwParkModes;

    DWORD  dwForwardModes;
    DWORD  dwMaxForwardEntries;
    DWORD  dwMaxSpecificEntries;
    DWORD  dwMinFwdNumRings;
    DWORD  dwMaxFwdNumRings;

    DWORD  dwMaxCallCompletions;
    DWORD  dwCallCompletionConds;
    DWORD  dwCallCompletionModes;
    DWORD  dwNumCompletionMessages;
    DWORD  dwCompletionMsgTextEntrySize;
    DWORD  dwCompletionMsgTextSize;
    DWORD  dwCompletionMsgTextOffset;
    DWORD  dwAddressFeatures;

    DWORD  dwPredictiveAutoTransferStates;
    DWORD  dwNumCallTreatments;
    DWORD  dwCallTreatmentListSize;
    DWORD  dwCallTreatmentListOffset;
    DWORD  dwDeviceClassesSize;
    DWORD  dwDeviceClassesOffset;
    DWORD  dwMaxCallDataSize;
    DWORD  dwCallFeatures2;
    DWORD  dwMaxNoAnswerTimeout;
    DWORD  dwConnectedModes;
    DWORD  dwOfferingModes;
    DWORD  dwAvailableMediaModes;
} LINEADDRESSCAPS, FAR *LPLINEADDRESSCAPS;

Members

dwTotalSize

The total size in bytes allocated to this data structure.

dwNeededSize

The size in bytes for this data structure that is needed to hold all the returned information.

dwUsedSize

The size in bytes of the portion of this data structure that contains useful information.

dwLineDeviceID

The device identifier of the line device with which this address is associated.

dwAddressSize

dwAddressOffset

The size in bytes of the variably sized address field and the offset in bytes from the beginning of this data structure.

dwDevSpecificSize

dwDevSpecificOffset

The size in bytes of the variably sized device-specific field and the offset in bytes from the beginning of this data structure.

dwAddressSharing

The sharing mode of the address. This member can be one of the following values:

LINEADDRESSSHARING_PRIVATE: An address with private sharing mode is only assigned to a single line or station.
LINEADDRESSSHARING_BRIDGEDEXCL: An address with a bridged-exclusive sharing mode is assigned to one or more other lines or stations. The exclusive portion refers to the fact that only one of the bridged parties can be connected with a remote party at any given time.
LINEADDRESSSHARING_BRIDGEDNEW: An address with a bridged-new sharing mode is assigned to one or more other lines or stations. The new portion refers to the fact that activities by the different bridged parties result in the creation of new calls on the address.
LINEADDRESSSHARING_BRIDGEDSHARED: An address with a bridged-shared sharing mode is also assigned to one or more other lines or stations. The shared portion refers to the fact that if one of the bridged parties is connected with a remote party, the remaining bridged parties can share in the conversation (as in a conference) by activating that call appearance.
LINEADDRESSSHARING_MONITORED: An address with a monitored address mode simply monitors the status of that address. The status is either idle or in use. The message LINE_ADDRESSSTATE notifies the application about these changes.

dwAddressStates

Contains the address states changes for which the application may get notified in the LINE_ADDRESSSTATE message. This member uses the following LINEADDRESSSTATE_ constants:

LINEADDRESSSTATE_OTHER: Address status items other than those listed below have changed. The application should check the current address status to determine which items have changed.
LINEADDRESSSTATE_DEVSPECIFIC: The device-specific item of the address status has changed.
LINEADDRESSSTATE_INUSEZERO: The address has changed to idle (it is not in use by any station).
LINEADDRESSSTATE_INUSEONE: The address has changed from being idle or from being in use by many bridged stations to being in use by just one station.
LINEADDRESSSTATE_INUSEMANY: The monitored or bridged address has changed from being in use by one station to being used by more than one station.
LINEADDRESSSTATE_NUMCALLS: The number of calls on the address has changed. This is the result of events such as a new incoming call, an outgoing call on the address, or a call changing its hold status.
LINEADDRESSSTATE_FORWARD: The forwarding status of the address has changed, including the number of rings for determining a no-answer condition. The application should check the address status to retrieve details about the address's current forwarding status.
LINEADDRESSSTATE_TERMINALS: The terminal settings for the address have changed.
LINEADDRESSSTATE_CAPSCHANGE: Indicates that due to configuration changes made by the user or other circumstances, one or more of the members in the LINEADDRESSCAPS structure for the address have changed. The application should use lineGetAddressCaps to read the updated structure. If a service provider sends a LINE_ADDRESSSTATE message containing this value to TAPI, TAPI passes it along to applications that have negotiated TAPI version 1.4 or later; applications negotiating a previous TAPI version receive LINE_LINEDEVSTATE messages specifying LINEDEVSTATE_REINIT, requiring them to shutdown and reinitialize their connection to TAPI to obtain the updated information.

dwCallInfoStates

Describes the call information elements that are meaningful for all calls on this address. An application may get notified about changes in some of these states in LINE_CALLINFO messages. This member uses the following LINECALLINFOSTATE_ constants:

LINECALLINFOSTATE_OTHER: Call information items other than those listed below have changed. The application should check the current call information to determine which items have changed.
LINECALLINFOSTATE_DEVSPECIFIC: The device-specific field of the call information.
LINECALLINFOSTATE_BEARERMODE: The bearer-mode field of the call information record.
LINECALLINFOSTATE_RATE: The rate field of the call information record.
LINECALLINFOSTATE_MEDIAMODE: The media-mode field of the call information record.
LINECALLINFOSTATE_APPSPECIFIC: The application-specific field of the call information record.
LINECALLINFOSTATE_CALLID: The call ID field of the call information record.
LINECALLINFOSTATE_RELATEDCALLID: The related call ID field of the call information record.
LINECALLINFOSTATE_ORIGIN: The origin field of the call information record.
LINECALLINFOSTATE_REASON: The reason field of the call information record.
LINECALLINFOSTATE_COMPLETIONID: The completion ID field of the call information record.
LINECALLINFOSTATE_NUMOWNERINCR: The number of owner fields in the call information record was increased.
LINECALLINFOSTATE_NUMOWNERDECR: The number of owner fields in the call information record was decreased.
LINECALLINFOSTATE_NUMMONITORS: The number of monitors field in the call information record has changed.
LINECALLINFOSTATE_TRUNK: The trunk field of the call information record has changed.
LINECALLINFOSTATE_CALLERID: One of the callerID-related fields of the call information record has changed.
LINECALLINFOSTATE_CALLEDID: One of the calledID-related fields of the call information record has changed.
LINECALLINFOSTATE_CONNECTEDID: One of the connectedID-related fields of the call information record has changed.
LINECALLINFOSTATE_REDIRECTIONID: One of the redirectionID-related fields of the call information record has changed.
LINECALLINFOSTATE_REDIRECTINGID: One of the redirectingID-related fields of the call information record has changed.
LINECALLINFOSTATE_DISPLAY: The display field of the call information record.
LINECALLINFOSTATE_USERUSERINFO: The user-user information field of the call information record.
LINECALLINFOSTATE_HIGHLEVELCOMP: The high-level compatibility field of the call information record.
LINECALLINFOSTATE_LOWLEVELCOMP: The low-level compatibility field of the call information record.
LINECALLINFOSTATE_CHARGINGINFO: The charging information field of the call information record.
LINECALLINFOSTATE_TERMINAL: The terminal mode information of the call information record.
LINECALLINFOSTATE_DIALPARAMS: The dial parameters of the call information record.
LINECALLINFOSTATE_MONITORMODES: One or more of the digit, tone, or media monitoring fields in the call information record has changed.

dwCallerIDFlags

dwCalledIDFlags

dwConnectedIDFlags

dwRedirectionIDFlags

dwRedirectingIDFlags

Describes the various party identifier information types that can be provided for calls on this address. This member uses the following LINECALLPARTYID_ constants:

LINECALLPARTYID_BLOCKED: Caller ID information for the call has been blocked by the caller but would otherwise have been available.
LINECALLPARTYID_OUTOFAREA: Caller ID information for the call is not available because it is not propagated all the way by the network.
LINECALLPARTYID_NAME: The caller ID information for the call is the caller's name (from a table maintained inside the switch). It is provided in the caller ID name variably sized field.
LINECALLPARTYID_ADDRESS: The caller ID information for the call is the caller's number and is provided in the caller ID variably sized field.
LINECALLPARTYID_PARTIAL: Caller ID information for the call is valid but is limited to partial number information.
LINECALLPARTYID_UNKNOWN: Caller ID information is currently unknown; it may become known later.
LINECALLPARTYID_UNAVAIL: Caller ID information is unavailable and cannot become known later.

dwCallStates

Describes the various call states that can possibly be reported for calls on this address. This member uses the following LINECALLSTATE_ constants:

LINECALLSTATE_IDLE: The call is idle—no call exists.
LINECALLSTATE_OFFERING: The call is being offered to the station, signaling the arrival of a new call. In some environments, a call in the offering state does not automatically alert the user; alerting is done by the switch instructing the line to ring. It does not affect any call states.
LINECALLSTATE_ACCEPTED: The call was offering and has been accepted. This indicates to other (monitoring) applications that the current owner application has claimed responsibility for answering the call. In ISDN, this also initiates alerting to both parties.
LINECALLSTATE_DIALTONE: The call is receiving a dial tone from the switch, which means that the switch is ready to receive a dialed number.
LINECALLSTATE_DIALING: Destination address information (a phone number) is being sent to the switch on the call. Note that the function lineGenerateDigits does not place the line into the dialing state.
LINECALLSTATE_RINGBACK: The call is receiving ringback from the called address. Ringback indicates that the other station has been reached and is being alerted.
LINECALLSTATE_BUSY: The call is receiving a busy tone. Busy tone indicates that the call cannot be completed—either a circuit (trunk) or the remote party's station are in use.
LINECALLSTATE_SPECIALINFO: Special information is sent by the network. Special information is typically sent when the destination cannot be reached.
LINECALLSTATE_CONNECTED: The call has been established and the connection is made. Information is able to flow on the call between the originating address and the destination address.
LINECALLSTATE_PROCEEDING: Dialing has completed and the call is proceeding through the switch or telephone network.
LINECALLSTATE_ONHOLD: The call is on hold by the switch.
LINECALLSTATE_CONFERENCED: The call is currently a member of a multiparty conference call.
LINECALLSTATE_ONHOLDPENDCONF: The call is currently on hold while it is being added to a conference call.
LINECALLSTATE_ONHOLDPENDTRANSF: The call is currently on hold awaiting transfer to another number.
LINECALLSTATE_DISCONNECTED: The remote party has disconnected from the call.
LINECALLSTATE_UNKNOWN: The state of the call is not known. This can be due to limitations of the call progress detection implementation.

dwDialToneModes

Describes the various dial tone modes that can possibly be reported for calls made on this address. This member is meaningful only if the dialtone call state can be reported. This member uses the following LINEDIALTONEMODE_ constants:

LINEDIALTONEMODE_NORMAL: A "normal" dial tone, which typically is a continuous tone.
LINEDIALTONEMODE_SPECIAL: A special dial tone indicating a certain condition is currently in effect.
LINEDIALTONEMODE_INTERNAL: An internal dial tone, as within a private branch exchange (PBX).
LINEDIALTONEMODE_EXTERNAL: An external (public network) dial tone.
LINEDIALTONEMODE_UNKNOWN: The dial tone mode is currently unknown but may become known later.
LINEDIALTONEMODE_UNAVAIL: The dial tone mode is unavailable and cannot become known.

dwBusyModes

Describes the various busy modes that can possibly be reported for calls made on this address. This member is meaningful only if the busy call state can be reported. This member uses the following LINEBUSYMODE_ constants:

LINEBUSYMODE_STATION: The busy signal indicates that the called party's station is busy. This is usually signaled with a "normal" busy tone.
LINEBUSYMODE_TRUNK: The busy signal indicates that a trunk or circuit is busy. This is usually signaled with a "long" busy tone.
LINEBUSYMODE_UNKNOWN: The busy signal's specific mode is currently unknown but may become known later.
LINEBUSYMODE_UNAVAIL: The busy signal's specific mode is unavailable and cannot become known.

dwSpecialInfo

Describes the various special information types that can possibly be reported for calls made on this address. This member is meaningful only if the specialInfo call state can be reported. This member uses the following LINESPECIALINFO_ constants:

LINESPECIALINFO_NOCIRCUIT: Special information tone that precedes a no-circuit or emergency announcement (trunk blockage category).
LINESPECIALINFO_CUSTIRREG: Special information tone that precedes a vacant number, Alarm Indication Signal (AIS), Centrex number change and nonworking station, access code not dialed or dialed in error, manual intercept operator message (customer irregularity category).
LINESPECIALINFO_REORDER: Special information tone that precedes a reorder announcement (equipment irregularity category).
LINESPECIALINFO_UNKNOWN: Specifics about the special information tone are currently unknown but may become known later.
LINESPECIALINFO_UNAVAIL: Specifics about the special information tone are unavailable and cannot become known.

dwDisconnectModes

Describes the various disconnect modes that can possibly be reported for calls made on this address. This member is meaningful only if the disconnected call state can be reported. This member uses the following LINEDISCONNECTMODE_ constants:

LINEDISCONNECTMODE_NORMAL: A "normal" disconnect request by the remote party; the call was terminated normally.
LINEDISCONNECTMODE_UNKNOWN: The reason for the disconnect request is unknown.
LINEDISCONNECTMODE_REJECT: The remote user has rejected the call.
LINEDISCONNECTMODE_PICKUP: The call was picked up from elsewhere.
LINEDISCONNECTMODE_FORWARDED: The call was forwarded by the switch.
LINEDISCONNECTMODE_BUSY: The remote user's station is busy.
LINEDISCONNECTMODE_NOANSWER: The remote user's station does not answer.
LINEDISCONNECTMODE_NODIALTONE: A dial tone was not detected within a service provider-defined timeout, at a point during dialing when one was expected (such as at a "W" in the dialable string). This can also occur without a service-provider-defined timeout period or without a value specified in the dwWaitForDialTone member of the LINEDIALPARAMS structure.
LINEDISCONNECTMODE_BADADDRESS: The destination address in invalid.
LINEDISCONNECTMODE_UNREACHABLE: The remote user could not be reached.
LINEDISCONNECTMODE_CONGESTION: The network is congested.
LINEDISCONNECTMODE_INCOMPATIBLE: The remote user's station equipment is incompatible with the type of call requested.
LINEDISCONNECTMODE_UNAVAIL: The reason for the disconnect is unavailable and cannot become known later.

dwMaxNumActiveCalls

Contains the maximum number of active call appearances that the address can handle. This number does not include calls on hold or calls on hold pending transfer or conference.

dwMaxNumOnHoldCalls

Contains the maximum number of call appearances at the address that can be on hold.

dwMaxNumOnHoldPendingCalls

Contains the maximum number of call appearances at the address that can be on hold pending transfer or conference.

dwMaxNumConference

Contains the maximum number of parties that can join a single conference call on this address.

dwMaxNumTransConf

Specifies the number of parties (including "self") that can be added in a conference call that is initiated as a generic consultation call using lineSetupTransfer.

dwAddrCapFlags

Contains a series of packed bit flags that describe a variety of address capabilities. This member uses the following LINEADDRCAPFLAGS_ constants:

LINEADDRCAPFLAGS_FWDNUMRINGS: Specifies whether the number of rings for a "no answer" can be specified when forwarding calls on no answer.
LINEADDRCAPFLAGS_PICKUPGROUPID: Specifies whether or not a group identifier is required for call pickup.
LINEADDRCAPFLAGS_SECURE: Specifies whether or not calls on this address can be made secure at call-setup time.
LINEADDRCAPFLAGS_BLOCKIDDEFAULT: Specifies whether the network by default sends or blocks caller ID information when making a call on this address. If TRUE, identifier information is blocked by default; if FALSE, identifier information is transmitted by default.
LINEADDRCAPFLAGS_BLOCKIDOVERRIDE: Specifies whether the default setting for sending or blocking of caller ID information can be overridden per call. If TRUE, override is possible; if FALSE, override is not possible.
LINEADDRCAPFLAGS_DIALED: Specifies whether a destination address can be dialed on this address for making a call. TRUE if a destination address must be dialed; FALSE if the destination address is fixed (as with a "hot phone").
LINEADDRCAPFLAGS_ORIGOFFHOOK: Specifies whether the originating party's phone can automatically be taken offhook when making calls.
LINEADDRCAPFLAGS_DESTOFFHOOK: Specifies whether the called party's phone can automatically be forced offhook when making calls.
LINEADDRCAPFLAGS_FWDCONSULT: Specifies whether call forwarding involves the establishment of a consultation call.
LINEADDRCAPFLAGS_SETUPCONFNULL: Specifies whether setting up a conference call starts out with an initial call (FALSE) or with no initial call (TRUE).
LINEADDRCAPFLAGS_AUTORECONNECT: Specifies whether dropping a consultation call automatically reconnects to the call on consultation hold. If reconnect happens automatically, TRUE; otherwise, FALSE.
LINEADDRCAPFLAGS_COMPLETIONID: Specifies whether the completion identifiers returned by lineCompleteCall are useful and unique. If useful, TRUE; otherwise, FALSE.
LINEADDRCAPFLAGS_TRANSFERHELD: Specifies whether a (hard) held call can be transferred. Often, only calls on consultation hold may be able to be transferred.
LINEADDRCAPFLAGS_CONFERENCEHELD: Specifies whether a (hard) held call can be added to a conference call. Often, only calls on consultation hold may be able to be added to a conference call.
LINEADDRCAPFLAGS_ PARTIALDIAL: Specifies whether partial dialing is available.
LINEADDRCAPFLAGS_FWDSTATUSVALID: Specifies whether the forwarding status in the LINEADDRESSSTATUS structure for this address is valid.
LINEADDRCAPFLAGS_ FWDINTEXTADDR: Specifies whether internal and external calls can be forwarded to different forwarding addresses. This flag is meaningful only if forwarding of internal and external calls can be controlled separately. It is TRUE if internal and external calls can be forwarded to different destination addresses; otherwise, FALSE.
LINEADDRCAPFLAGS_ FWDBUSYNAADDR: Specifies whether call forwarding for busy and for no answer can use different forwarding addresses. This flag is meaningful only if forwarding for busy and for no answer can be controlled separately. It is TRUE if forwarding for busy and for no answer can use different destination addresses; otherwise, FALSE.
LINEADDRCAPFLAGS_ACCEPTTOALERT: TRUE if an offering call must be accepted using lineAccept to start alerting the users at both ends of the call; otherwise, FALSE. Typically, this is only used with Integrated Services Digital Network (ISDN).
LINEADDRCAPFLAGS_CONFDROP: TRUE if invoking lineDrop on a conference call parent; TRUE also has the side effect of dropping the other parties involved in the conference call. FALSE if dropping a conference call; FALSE still allows the other parties to talk among themselves.
LINEADDRCAPFLAGS_ PICKUPCALLWAIT: TRUE if linePickup can be used to pick up a call detected by the user as a "call waiting" call; otherwise FALSE.

dwCallFeatures

Specifies the switching capabilities or features available for all calls on this address using the LINECALLFEATURE_ constants. This member represents the call-related features that may possibly be available on an address (static availability as opposed to dynamic availability). Invoking a supported feature requires the call to be in the proper state and the underlying line device to be opened in a compatible mode. A zero in a bit position indicates that the corresponding feature is never available. A one indicates that the corresponding feature may be available if the application has the right privileges to the call and the call is in the appropriate state for the operation to be meaningful. This member allows an application to discover which call features can be (and which can never be) supported by the address.

dwRemoveFromConfCaps

Specifies the address's capabilities for removing calls from a conference call. This member uses the following LINEREMOVEFROMCONF_ constants:

LINEREMOVEFROMCONF_NONE: Parties cannot be removed from the conference call.
LINEREMOVEFROMCONF_LAST: Only the most recently added party can be removed from the conference call.
LINEREMOVEFROMCONF_ANY: Any participating party can be removed from the conference call.

dwRemoveFromConfState

Uses the LINECALLSTATE_ constants to specify the state of the call after it has been removed from a conference call.

dwTransferModes

Specifies the address's capabilities for resolving transfer requests. This member uses the following LINETRANSFERMODE_ constants:

LINETRANSFERMODE_TRANSFER: Resolve the initiated transfer by transferring the initial call to the consultation call.
LINETRANSFERMODE_CONFERENCE: Resolve the initiated transfer by placing all three parties into a three-way conference call. A conference call is created and returned to the application.

dwParkModes

Specifies the different call park modes available at this address. This member uses the LINEPARKMODE_ constants:

LINEPARKMODE_DIRECTED: Specifies directed call park. The address where the call is to be parked must be supplied to the switch.
LINEPARKMODE_NONDIRECTED: Specifies nondirected call park. The address where the call is parked is selected by the switch and provided by the switch to the application.

dwForwardModes

Specifies the different modes of forwarding available for this address. This member uses the following LINEFORWARDMODE_ constants:

LINEFORWARDMODE_UNCOND: Forward all calls unconditionally, irrespective of their origin. Use this value when unconditional forwarding for internal and external calls cannot be controlled separately. Unconditional forwarding overrides forwarding on busy and/or no answer conditions.
LINEFORWARDMODE_UNCONDINTERNAL: Forward all internal calls unconditionally. Use this value when unconditional forwarding for internal and external calls can be controlled separately.
LINEFORWARDMODE_UNCONDEXTERNAL: Forward all external calls unconditionally. Use this value when unconditional forwarding for internal and external calls can be controlled separately.
LINEFORWARDMODE_UNCONDSPECIFIC: Forward all calls that originated at a specified address unconditionally (selective call forwarding).
LINEFORWARDMODE_BUSY: Forward all calls on busy, irrespective of their origin. Use this value when forwarding for internal and external calls on busy and on no answer cannot be controlled separately.
LINEFORWARDMODE_BUSYINTERNAL: Forward all internal calls on busy. Use this value when forwarding for internal and external calls on busy and on no answer can be controlled separately.
LINEFORWARDMODE_BUSYEXTERNAL: Forward all external calls on busy. Use this value when forwarding for internal and external calls on busy and on no answer can be controlled separately.
LINEFORWARDMODE_BUSYSPECIFIC: Forward all calls that originated at a specified address on busy (selective call forwarding).
LINEFORWARDMODE_NOANSW: Forward all calls on no answer, irrespective of their origin. Use this value when call forwarding for internal and external calls on no answer cannot be controlled separately.
LINEFORWARDMODE_NOANSWINTERNAL: Forward all internal calls on no answer. Use this value when forwarding for internal and external calls on no answer can be controlled separately.
LINEFORWARDMODE_NOANSWEXTERNAL: Forward all external calls on no answer. Use this value when forwarding for internal and external calls on no answer can be controlled separately.
LINEFORWARDMODE_NOANSWSPECIFIC: Forward all calls that originated at a specified address on no answer (selective call forwarding).
LINEFORWARDMODE_BUSYNA: Forward all calls on busy or no answer, irrespective of their origin. Use this value when forwarding; internal and external calls on busy and on no answer cannot be controlled separately.
LINEFORWARDMODE_BUSYNAINTERNAL: Forward all internal calls on busy or no answer. Use this value when call forwarding on busy and on no answer cannot be controlled separately for internal calls.
LINEFORWARDMODE_BUSYNAEXTERNAL: Forward all external calls on busy or no answer. Use this value when call forwarding on busy and on no answer cannot be controlled separately for internal calls.
LINEFORWARDMODE_BUSYNASPECIFIC: Forward all calls that originated at a specified address on busy or no answer (selective call forwarding).

dwMaxForwardEntries

Specifies the maximum number of entries that can be passed to lineForward in the lpForwardList parameter.

dwMaxSpecificEntries

Specifies the maximum number of entries in the lpForwardList parameter passed to lineForward that can contain forwarding instructions based on a specific caller ID (selective call forwarding). This member is zero if selective call forwarding is not supported.

dwMinFwdNumRings

Specifies the minimum number of rings that can be set to determine when a call is officially considered "no answer."

dwMaxFwdNumRings

Specifies the maximum number of rings that can be set to determine when a call is officially considered "no answer." If this number of rings cannot be set, then dwMinFwdNumRings and dwMaxNumRings are equal.

dwMaxCallCompletions

Specifies the maximum number of concurrent call completion requests that can be outstanding on this line device. Zero implies that call completion is not available.

dwCallCompletionConds

Specifies the different call conditions under which call completion can be requested. This member uses the following LINECALLCOMPLCOND_ constants:

LINECALLCOMPLCOND_BUSY: Complete the call under the busy condition.
LINECALLCOMPLCOND_NOANSWER: Complete the call under the ringback no answer condition.

dwCallCompletionModes

Specifies the way in which the call can be completed. This member uses the following LINECALLCOMPLCOND_ constants:

LINECALLCOMPLMODE_CAMPON: Queue the call until the call can be completed.
LINECALLCOMPLMODE_CALLBACK: Request the called station to return the call when it returns to idle.
LINECALLCOMPLMODE_INTRUDE: Add the application to the existing call at the called station if busy (barge in).
LINECALLCOMPLMODE_MESSAGE: Leave a short predefined message for the called station (Leave Word Calling). A specific message can be identified.

dwNumCompletionMessages

Specifies the number of call completion messages that can be selected from when using the LINECALLCOMPLMODE_MESSAGE option. Individual messages are identified by values in the range zero through one less than dwNumCompletionMessages.

dwCompletionMsgTextEntrySize

Specifies the size in bytes of each of the call completion text descriptions pointed at by dwCompletionMsgTextSize and dwCompletionMsgTextOffset.

dwCompletionMsgTextSize

dwCompletionMsgTextOffset

The size in bytes and the offset in bytes from the beginning of this data structure of the variably sized field containing descriptive text about each of the call completion messages. Each message is dwCompletionMsgTextEntrySize bytes long. The string format of these textual descriptions is indicated by dwStringFormat in the line's device capabilities.

dwAddressFeatures

Specifies the features available for this address using the LINEADDRFEATURE_ constants. Invoking a supported feature requires the address to be in the proper state and the underlying line device to be opened in a compatible mode. A zero in a bit position indicates that the corresponding feature is never available. A one indicates that the corresponding feature may be available if the address is in the appropriate state for the operation to be meaningful. This member allows an application to discover which address features can be (and which can never be) supported by the address.

dwPredictiveAutoTransferStates

The call state or states upon which a call made by a predictive dialer can be set to automatically transfer the call to another address; one or more of the LINECALLSTATE_ constants. The value 0 indicates automatic transfer based on call state is unavailable.

dwNumCallTreatments

The number of entries in the array of LINECALLTREATMENTENTRY structures delimited by dwCallTreatmentListSize and dwCallTreatmentListOffset.

dwCallTreatmentListSize

dwCallTreatmentListOffset

The total size in bytes and offset from the beginning of LINEADDRESSCAPS of an array of LINECALLTREATMENTENTRY structures, indicating the call treatments supported on the address (that can be selected using lineSetCallTreatment). The value is dwNumCallTreatments times SIZEOF (LINECALLTREATMENTENTRY).

dwDeviceClassesSize

dwDeviceClassesOffset

Length in bytes and offset from the beginning of LINEADDRESSCAPS of a string consisting of the device class identifiers supported on this address for use with lineGetID, separated by NULLs; the last class indentifier is followed by two NULLs.

dwMaxCallDataSize

The maximum number of bytes that an application can set in LINECALLINFO using lineSetCallData.

dwCallFeatures2

Specifies additional switching capabilities or features available for all calls on this address using the LINECALLFEATURE2_ constants. It is an extension of the dwCallFeatures member.

dwMaxNoAnswerTimeout

The maximum value in seconds that can be set in the dwNoAnswerTimeout member in LINECALLPARAMS when making a call. A value of 0 indicates that automatic abandonment of unanswered calls is not supported by the service provider, or that the timeout value is not adjustable by applications.

dwConnectedModes

Specifies the LINECONNECTEDMODE_ values that can appear in the dwCallStateMode member of LINECALLSTATUS and in LINE_CALLSTATE messages for calls on this address.

dwOfferingModes

Specifies the LINEOFFERINGMODE_ values that can appear in the dwCallStateMode member of LINECALLSTATUS and in LINE_CALLSTATE messages for calls on this address.

dwAvailableMediaModes

Indicates the media modes that can be invoked on new calls created on this address, when the dwAddressFeatures member indicates that new calls are possible. If this member is zero, it indicates that the service provider either does not know or cannot indicate which media modes are available, in which case any or all of the media modes indicated in the dwMediaModes member in LINEDEVCAPS may be available.

Remarks

Device-specific extensions should use the DevSpecific (dwDevSpecificSize and dwDevSpecificOffset) variably sized area of this data structure.

Older applications are compiled without this member in the LINEADDRESSCAPS structure, and using a SIZEOF LINEADDRESSCAPS smaller than the new size. The application passes in a dwAPIVersion parameter with the lineGetAddressCaps function, which can be used for guidance by TAPI in handling this situation. If the application passes in a dwTotalSize member less than the size of the fixed portion of the structure as defined in the dwAPIVersion member specified, LINEERR_STRUCTURETOOSMALL is returned. If sufficient memory has been allocated by the application, before calling TSPI_lineGetAddressCaps, TAPI sets the dwNeededSize and dwUsedSize members to the fixed size of the structure as it existed in the specified API version.

New service providers (that support the new API version) must examine the API version passed in. If the API version is less than the highest version supported by the provider, the service provider must not fill in fields not supported in older API versions, as these would fall in the variable portion of the older structure.

New applications must be cognizant of the API version negotiated, and not examine the contents of fields in the fixed portion beyond the original end of the fixed portion of the structure for the negotiated API version.

The members dwPredictiveAutoTransferStates through dwAvailableMediaModes are available only to applications that request an API version of 2.0 or later when calling lineGetAddressCaps.

QuickInfo

Version: Use TAPI version 1.4 and later.
Header: Declared in tapi.h.

LINEADDRESSCAPS

Members

Remarks

QuickInfo

See Also