Offers developers an alternative to the proprietary telephony software
BS Editor: The EZTapiAPI SDK is a powerful Software Library written in C and C++ that exports a set of easy to use functions for developing Interactive Voice Response (IVR) Telephony Systems that run on Windows based Operating Systems and interface with standard Voice-Modem hardware devices. The EZTapiAPI SDK can be used to quickly add telephony support to any new or existing application.
The EZTapiAPI SDK has been around since April of 2003 when it was first introduced in beta release. It is a complete and stable API for telephony software development with voice modem devices on Windows platforms. The EZTapiAPI SDK requires no prior knowledge or understanding of the underlying Microsoft TAPI and Windows Multi-Media technologies.
The EZTapiAPI SDK offers developers an alternative to the proprietary telephony software development solutions offered by larger companies requiring their expensive telephony hardware. The EZTapiAPI SDK supports many of the same features found in these proprietary hardware/software solutions at a fraction of the cost. This makes the EZTapiAPI SDK the right choice for the development of inexpensive reliable computer telephony software systems.

EZTapiAPI SDK features include:

Support for Inbound and Outbound Calling
Support for Caller Id (requires service subscription and supporting hardware)
Support for Playback/Recording of Voice Prompts in Standard WAVE File Format
Support for Multi-Digit String Collection and Generation
Support for Call Routing and Call-Transfer
Configurable PULSE or DTMF Digit Mode
Configurable Support for Termination of Prompt Playback and Recording on Digit Detection
Configurable First-Digit/Inter-Digit Timeouts During Collection
Configurable Support for WAVE File Trim
The Convenience of a Synchronous and Asynchronous Programming Model
Supports Visual Basic Calling Style you can free download EZTapiAPI SDK 2.02 now.