Basic Telephony Services Functions

The Basic Telephony functions are listed by category in the following tables. A function is identified as asynchronous if it will indicate completion in a REPLY message to the application. If the function always returns its result to the application immediately, the function is considered synchronous.

TAPI Initialization and Shutdown

lineInitializeEx
Initializes the Telephony API line abstraction for use by the invoking application. Synchronous.
lineShutdown
Shuts down the application's use of the line Telephony API. Synchronous.

Line Version Negotiation

lineNegotiateAPIVersion
Allows an application to negotiate an API version to use. Synchronous.

Line Status and Capabilities

lineGetDevCaps
Returns the capabilities of a given line device. Synchronous.
lineGetDevConfig
Returns configuration of a media stream device. Synchronous.
lineGetLineDevStatus
Returns current status of the specified open line device. Synchronous.
lineSetDevConfig
Sets the configuration of the specified media stream device. Synchronous.
lineSetStatusMessages
Specifies the status changes for which the application wants to be notified. Synchronous.
lineGetStatusMessages
Returns the application's current line and address status message settings. Synchronous.
lineGetID
Retrieves a device ID associated with the specified open line, address, or call. Synchronous.
lineGetIcon
Allows an application to retrieve an icon for display to the user. Synchronous.
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.
lineConfigDialogEdit
Displays a dialog box allowing the user to change configuration information for a line device. Synchronous. Version 0x00010004.

Addresses

lineGetAddressCaps
Returns the telephony capabilities of an address. Synchronous.
lineGetAddressStatus
Returns current status of a specified address. Synchronous.
lineGetAddressID
Retrieves the address ID of an address specified using an alternate format. Synchronous.

Opening and Closing Line Devices

lineOpen
Opens a specified line device for providing subsequent monitoring and/or control of the line. Synchronous.
lineClose
Closes a specified opened line device. Synchronous.

Address Formats

lineTranslateAddress
Translates between an address in canonical format and an address in dialable format. Synchronous.
lineSetCurrentLocation
Sets the location used as the context for address translation. Synchronous.
lineSetTollList
Manipulates the toll list. Synchronous.
lineGetTranslateCaps
Returns address translation capabilities. Synchronous.

Call States and Events

lineGetCallInfo
Returns mostly constant information about a call. Synchronous.
lineGetCallStatus
Returns complete call status information for the specified call. Synchronous.
lineSetAppSpecific
Sets the application-specific field of a call's information structure. Synchronous.

Request Recipient Services

These functions are used only in support of assisted telephony.

LineRegisterRequestRecipient
Registers or deregisters the application as a request recipient for the specified request mode. Synchronous.
lineGetRequest
Gets the next request from the Telephony DLL. Synchronous.

Making Calls

lineMakeCall
Makes an outbound call and returns a call handle for it. Asynchronous.
lineDial
Dials (parts of one or more) dialable addresses. Asynchronous.

Answering Inbound Calls

lineAnswer
Answers an inbound call. Asynchronous.

Toll Saver Support

lineSetNumRings
Indicates the number of rings after which inbound calls are to be answered. Synchronous.
lineGetNumRings
Returns the minimum number of rings requested with lineSetNumRings. Synchronous.

Call Privilege Control

lineSetCallPrivilege
Sets the application's privilege to the privilege specified. Synchronous.

Call Drop

lineDrop
Disconnects a call, or abandons a call attempt in progress. Asynchronous.
lineDeallocateCall
Deallocates the specified call handle. Synchronous.

Call Handle Manipulation

lineHandoff
Hands off call ownership and/or changes an application's privileges to a call. Synchronous.
lineGetNewCalls
Returns call handles to calls on a specified line or address for which the application does not yet have handles. Synchronous.
lineGetConfRelatedCalls
Returns a list of call handles that are part of the same conference call as the call specified as a parameter. Synchronous.

Location and Country Information

lineTranslateDialog
Displays a dialog box allowing the user to change location and calling card information. Synchronous. Version 0x00010004.
lineGetCountry
Retrieves dialing rules and other information about a given country. Synchronous. Version 0x00010004.

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