AddTapi.NET supports Microsoft Telephony Application Programming Interface (TAPI) 1.3 - 3.1 and works with all TAPI-compatible telephony hardware, from voice modems to advanced telephony boards to TAPI-compatible PBX systems. Version 5.0 adds support for conference calls with 3 or more parties, support for text-to-speech and audio playback, detailed line status information and support for Visual Studio 2005-2015.

AddTapi.NET - 100% managed code telephony in .NET
With AddTapi.NET you can easily add telephony features to your C#, VB.NET or C++ application. AddTapi.NET has everything you need to develop telephony applications such as:

  • Interactive Voice Response (IVR) Systems
  • Caller ID Applications
  • Voice Mail Systems
  • Phone Dialers
  • Call Recorders
  • Notification Systems
  • Call Tracking Applications
  • Phone Surveys

AddTapi.NET wraps Microsoft Telephony Application Programming Interface (TAPI) and provides a set of...

Latest News

AddTapi.NET 6.0
AddTapi.NET 6.0
Adds support for Visual Studio 2022, .NET 6 and .NET 7.
AddTapi.NET 5.2
AddTapi.NET 5.2
Improved call state processing and Special Information Tone (SIT) detection.
AddTapi.NET adds new Audio Engine
AddTapi.NET adds new Audio Engine
New version supports text-to-speech and audio playback in Windows service applications.
AddTapi.NET released
AddTapi.NET released
Easily add telephony (TAPI) features to your C#, VB.NET or C++ application.

Prices from: $ 489.02

Developer and Site Licenses: AddTapi.NET is licensed per developer. A license is required for each developer who will use AddTapi.NET. You are only required to purchase a license for each developer...

Got a Question?

Live Chat with our Traysoft licensing specialists now.

As official and authorized distributors, ComponentSource supplies you with legitimate licenses directly from Traysoft.
Component Type
  • .NET Class
  • 100% Managed Code
  • DLL

Recent Awards


Customer Reviews

Average Review Score: 5 (2)

5 out of 5 stars

5 star
4 star
3 star
2 star
1 star

Most recent positive review

Boris Israel5 star

My company needed to integrate with Cisco CM in one of our projects using the TAPI interface. This wonderful tool helped us to do it very fast and efficiently. We are going to use AddTapi.NET in our... Read more

Most recent critical review

There are no negative reviews for this product.