OZEKI

High performance VoIP SDK for .Net developers

VoIP SIP SDK

Quick start

Quick start guide Get started on using Ozeki VoIP SDK

Example projects Check out our example projects

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Download Download Ozeki VoIP SDK

Installation steps A step-by-step guide on installing the SDK

Licensing Read about Ozeki VoIP SDK licenses
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Manual

Package contents Read about the SDK package contents

Data sheet Check out Ozeki VoIP SDK datasheet

On-line manual Read our on-line manual on VoIP technologies

Developers guide Read our developers guide on using the SDK

API reference book Ozeki VoIP SDK class library documentation

Softphone development Read about VoIP softphone development

PBX development Read about VoIP PBX development

Callcenter & CRM development Read about call center and CRM development

Webphone development Read about VoIP webphone development

Mobile development Read about Mobile VoIP app development
Support

Request support Request technical support

On-line chat Ask for live help

Training at Ozeki Learn Ozeki VoIP SDK fundamentals

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Contact

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Company information Ozeki Informatics Ltd.

References Check out our references

IVR Example Programs

The following sites contain full source codes and explanations about IVR systems based on Ozeki VoIP SIP SDK.

C# DTMF IVR
A professional IVR solution that operates with DTMF signals.
C# voice recognition IVR
A great example that demonstrates how you can build an IVR system that uses voice recognition for navigation.
WinForms DTMF IVR
An advanced IVR solution with DTMF IVR tree navigation.
Visual Basic .NET DTMF IVR
An auto answering DTMF navigated IVR system written in Visual Basic .NET.