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Introduction to this C# autodialer project

This project presents how to develop a VoIP autodialer in C# programming language. After studying the step-by-step guide and the source code attached to the project, you will be able to make automated phone calls through the Internet by using your softphone application. In this project Ozeki VoIP SIP SDK - and its background support - was used to create the autodialer.


An autodialer is a software that automatically dials telephone numbers, and once a call has been answered, the autodialer either plays a recorded message or connects the call to a live person.

(Source and more information about autodialers:

Ozeki VoIP SIP SDK provides a first-rate technology for any VoIP development. Instead of wasting time for long development process on your own, you can take advantage on this decent software development kit. You will see how easy it is to create a softphone extended with autodialling functionality when you use Ozeki VoIP SIP SDK. Using this SDK does not require professional programming skills. A basic programming knowledge is enough, since Ozeki VoIP SIP SDK provides the base for the VoIP solution you are working on. Integrating it to your own program will provide instant VoIP ability.

Useful pages for C# autodialer development

Download Ozeki VoIP SIP SDK:
C# predictive dialer documentation:
IP PBX that was built by using Ozeki VoIP SIP SDK:

Last edited May 9, 2014 at 7:18 AM by simonrobert, version 12