Important:
This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.
A version of this page is also available for
4/8/2010

The following table shows the TSPI line device functions with a description of the purpose of each.

Programming element Description

TSPI_lineAccept

Accepts the specified offered call. Optionally, this function can send the specified user-user information to the calling party.

TSPI_lineAddToConference

Adds the call that is specified by the hdConsultCallparameter to the conference call that is specified by the hdConfCallparameter.

TSPI_lineAnswer

Answers the specified offering call.

TSPI_lineBlindTransfer

Performs a blind or single-step transfer of the specified call to the specified destination address.

TSPI_lineClose

Closes the specified open line device after completing or aborting every outstanding call and asynchronous operation on the device.

TSPI_lineCloseCall

Deallocates the call after completing or aborting every outstanding asynchronous operation on the call.

TSPI_lineCompleteCall

This function is not called by TAPI.

TSPI_lineCompleteTransfer

Completes the transfer of the specified call to the party that is connected in the consultation call.

TSPI_lineConditionalMediaDetection

Is invoked by TAPI whenever a client application uses the LINEMAPPER value as the dwDeviceIDparameter in a lineOpenfunction, to request that lines be scanned to find one that supports the desired media modes and call parameters.

TSPI_lineConfigDialogEdit

Causes the provider of the specified line device to display a modal dialog box as a child window of the hwndOwnerparameter, to allow the user to configure parameters that are related to the line device.

TSPI_lineDevSpecific

Is used as a general extension mechanism to enable service providers to provide access to features that are not described in other operations. The meanings of the extensions are device-specific, and the application must be fully aware of these extensions to take advantage of them.

TSPI_lineDevSpecificFeature

This function is not called by TAPI.

TSPI_lineDial

Dials the specified dialable number on the specified call.

TSPI_lineDrop

Drops or disconnects the specified call. Optionally, user-user information can be transmitted as part of the disconnect of the call. This function can be called by the application at any time.

TSPI_lineDropNoOwner

This function is not called by TAPI.

TSPI_lineDropOnClose

This function is not called by TAPI.

TSPI_lineForward

Forwards calls that are destined for the specified address on the specified line, according to the specified forwarding instructions.

TSPI_lineGenerateDigits

Initiates the generation of the specified digits on the specified call as inband tones by using the specified signaling mode.

TSPI_lineGenerateTone

Generates the specified tone inband over the specified call.

TSPI_lineGetAddressCaps

Queries the specified address on the specified line device to determine its telephony capabilities.

TSPI_lineGetAddressID

Returns the address identifier that is associated with the address that is assigned to the specified line device.

TSPI_lineGetAddressStatus

Queries the specified address for its current status.

TSPI_lineGetCallAddressID

Retrieves the address identifier for the indicated call.

TSPI_lineGetCallInfo

Returns detailed information about the specified call.

TSPI_lineGetCallStatus

Returns the current status of the specified call.

TSPI_lineGetDevCaps

Queries a specified line device to determine its telephony capabilities. The returned information is valid for every address on the line device.

TSPI_lineGetDevConfig

Returns a data-structure object, the contents of which are specific to the line (service provider) and device class, giving the current configuration of a device that is associated one-to-one with the line device.

TSPI_lineGetExtensionID

Returns the extension identifier that the service provider supports for the indicated line device.

TSPI_lineGetIcon

Retrieves a service line device-specific icon to display to the user.

TSPI_lineGetID

Returns a device identifier for the specified device class that is associated with the selected line, address, or call.

TSPI_lineGetLineDevStatus

Queries the specified open line device for its current status. The information that is returned is global to every address on the line.

TSPI_lineGetNumAddressIDs

Retrieves the number of address identifiers that are supported on the indicated line.

TSPI_lineHold

Places the specified call on hold.

TSPI_lineMakeCall

Places a call on the specified line to the specified destination address.

TSPI_lineMonitorDigits

Enables and disables the unbuffered detection of digits that are received on the call.

TSPI_lineMonitorMedia

Enables and disables the detection of media modes on the specified call.

TSPI_lineMonitorTones

This function is not called by TAPI.

TSPI_lineNegotiateExtVersion

Returns the highest extension version number for this device under which the service provider can operate, given the range of possible extension versions.

TSPI_lineNegotiateTSPIVersion

Returns the highest TSPI version for this device under which the service provider can operate, given the range of possible TSPI versions.

TSPI_lineOpen

Opens the line device whose device identifier is given, and returns the handle of the service provider for the device.

TSPI_linePark

This function is not called by TAPI.

TSPI_linePickup

Picks up a call alerting at the specified destination address, and returns a call handle for the picked-up call.

TSPI_linePrepareAddToConference

Prepares an existing conference call for the addition of another party.

TSPI_lineRedirect

Redirects the specified offering call to the specified destination address.

TSPI_lineReleaseUserUserInfo

Informs the service provider that the user-user information that is contained in the LINECALLINFOstructure has been processed, and that subsequently received user-user information now can be written into that structure.

TSPI_lineRemoveFromConference

Removes the specified call from the conference call to which it currently belongs. The remaining calls in the conference call are unaffected.

TSPI_lineSecureCall

This function is not called by TAPI.

TSPI_lineSelectExtVersion

This function is not supported in Windows Embedded CE.

TSPI_lineSendUserUserInfo

Sends user-user information to the remote party on the specified call.

TSPI_lineSetAppSpecific

This function is not called by TAPI.

TSPI_lineSetCallParams

Sets certain parameters for an existing call.

TSPI_lineSetCurrentLocation

Is obsolete; TAPI called this function when the user (by using the Dialing Propertiesdialog box) or an application (by using the lineSetCurrentLocationfunction) changed the address translation location.

TSPI_lineSetDefaultMediaDetection

Tells the service provider the new set of media modes to detect for the indicated line (replacing any previous set).

TSPI_lineSetDevConfig

Sets the configuration of the line device.

TSPI_lineSetMediaControl

This function is not called by TAPI.

TSPI_lineSetMediaMode

Changes the media of the call as stored in the LINECALLINFOstructure of the call.

TSPI_lineSetStatusMessages

Enables TAPI to specify the notification messages that the service provider should generate for events that are related to status changes for the specified line or any of its addresses.

TSPI_lineSetTerminal

Enables TAPI to specify the terminal to which information that is related to the specified line, address, or call should be routed.

TSPI_lineSetupConference

Sets up a conference call for the addition of the third party.

TSPI_lineSetupTransfer

Initiates a transfer of the call specified by the hdCallfunction.

TSPI_lineSwapHold

Swaps the specified active call with the specified call on consultation hold.

TSPI_lineUncompleteCall

This function is not called by TAPI.

TSPI_lineUnhold

Retrieves the specified held call.

TSPI_lineUnpark

This function is not called by TAPI.