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TSPI Basic Telephony Functions

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All service providers must implement Basic Telephony functions. The following is a list of such functions by category. A function is identified as asynchronous if it indicates completion in a REPLY message to the application. If the function always returns its result immediately, the function is considered synchronous.

TSP Initialization and Shutdown

Function Description
TUISPI_providerInstall Installs a TSP. Synchronous.
TSPI_providerInstall Installs the TSP. Obsolete with Version 2.0. Synchronous.
TSPI_providerInit Initializes the TSP. Synchronous.
TSPI_providerShutdown Shuts down the service provider.
TUISPI_providerRemove Removes a TSP. Synchronous.
TSPI_providerRemove Removes a TSP. Obsolete with Version 2.0. Synchronous.

 

Phone Version Negotiation

Function Description
TSPI_phoneNegotiateTSPIVersion Returns the highest SPI version the service provider can operate under for this device.

 

Line Version Negotiation

Function Description
TSPI_lineNegotiateTSPIVersion Allows an application to negotiate a TSPI version to use with a given line device. Synchronous.

 

Line Status and Capabilities

Function Description
TSPI_lineGetDevCaps Returns the capabilities of a given line device. Synchronous.
TSPI_lineGetDevConfig Returns configuration of a media stream device. Synchronous.
TSPI_lineGetLineDevStatus Returns current status of the specified open line device. Synchronous.
TSPI_lineSetDevConfig Sets the configuration of the specified media stream device. Synchronous.
TSPI_lineSetStatusMessages Specifies the status changes for which the application needs to be notified. Synchronous.
TSPI_lineGetID Retrieves a device ID associated with the specified open line, address, or call. Synchronous.
TSPI_lineGetIcon Allows an application to retrieve an icon for display to the user. Synchronous.
TUISPI_lineConfigDialog Causes the provider of the specified line device to display a dialog box that allows the user to configure parameters related to the line device. Synchronous.
TUISPI_lineConfigDialogEdit Displays a dialog box allowing the user to change configuration information for a line device. Synchronous.

 

Addresses

Function Description
TSPI_lineGetAddressCaps Returns the telephony capabilities of an address. Synchronous.
TSPI_lineGetAddressStatus Returns current status of a specified address. Synchronous.
TSPI_lineGetNumAddressIDs Retrieves the number of address identifiers supported on the indicated line.
TSPI_lineGetAddressID Retrieves the address ID of an address specified using an alternate format. Synchronous.

 

Opening and Closing Line Devices

Function Description
TSPI_lineOpen Opens a specified line device for providing subsequent monitoring and/or control of the line. Synchronous.
TSPI_lineClose Closes a specified opened line device. Synchronous.

 

Call States and Events

Function Description
TSPI_lineGetCallInfo Returns fixed information about a call. Synchronous.
TSPI_lineGetCallStatus Returns complete call status information for the specified call. Synchronous.
TSPI_lineSetAppSpecific Sets the application-specific field of a call's information structure. Synchronous.

 

Making Calls

Function Description
TSPI_lineMakeCall Makes an outbound call and returns a call handle for it. Asynchronous.
TSPI_lineDial Dials (parts of one or more) dialable addresses. Asynchronous.

 

Answering Incoming Calls

Function Description
TSPI_lineAnswer Answers an incoming call. Asynchronous.

 

Call Drop Functions

Function Description
TSPI_lineDrop Disconnects a call, or abandons a call attempt in progress. Asynchronous.