Purpose

A telephony service provider (TSP) is a dynamic-link library (DLL) that supports communications device control through a set of exported service functions. A TAPI application uses standardized commands, TAPI passes information to the telephony service provider, and the TSP handles the specific commands that must be exchanged with the device.

A TSP must conform to the Telephony Service Provider Interface (TSPI) to function as a service provider within the Microsoft Telephony environment. TSPI defines the external functions exposed by a telephony service provider supplied with communications equipment.

Developer Audience

You can write TAPI-enabled applications in many languages, including Java, Visual Basic®, and C/C++. Previous development experience with telecommunications or other telephony applications is helpful but not necessary.

Run-Time Requirements

TSPI enables development of TSPs for Microsoft Windows® Me/98/95, Windows NT® 4.0 SP3, Windows 2000, Windows XP, and Windows Server 2003 operating systems.

In This Section

See Also

Microsoft Telephony Overview
Media Service Providers
TAPI 2.2
TAPI 3.1

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Build date: 2/28/2008