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How to use the C# VoIP SIP source implementation of Ozeki VoIP SDK for creating a VB.Net Softphone

Download: Windows_Forms_Softphone_VB_NET.zip (14.9 MB)

This page provides information on how to use the C# VoIP SIP source implementation of Ozeki VoIP SDK for creating a VB.Net Softphone. You can also find information about the utilization, configuration, and the source code of this sample program. Read them and be familiar with the versatile functions that are offered by Ozeki VoIP SIP SDK.

Click here to check the sample source code >>>>

Ozeki VB.NET Softphone Sample is a sample program that is equipped with telephone functions. This sample program was developed for presentation purposes and it presents the essential and simple to use services of Ozeki VoIP SIP SDK. This sample program represents a single line phone that is able to forward and receive calls, to send and receive DTMF signals for navigating in IVR systems.

How to build a Windows Form Softphone in VB.NET?

Ozeki VoIP SIP SDK helps you to build a Windows Forms Softphone in VB.NET within a short time period. Before you start to build your own WPF softphone in VB.Net please check if your system meets the following prerequisites:

Time needed to introduce Ozeki VoIP SIP SDK:
It requires a really short time to introduce this SDK. Just download Ozeki VoIP SIP SDK and then the Windows_Forms_Softphone_VB_NET.zip (14.9 MB) to get started.

Operating systems:

  • Microsoft Windows XP
  • Microsoft Windows Server 2003
  • Microsoft Windows Server 2008
  • Microsoft Windows Vista
  • Microsoft Windows 7

Developer environment:

  • Microsoft Visual Studio 2010
  • Microsoft .Net Framework 3.5 or 4.0
  • SIP account (or a SIP PBX)
  • Internet connection

Hardware requirements:

  • 1 GHz or faster processor
  • 1GB RAM (32-bit) || 2GB RAM (64-bit)

Getting started

On the following webpages more detailed information is provided about Ozeki WPF softphone for VB.Net example. For getting started check the pages to get an overall view.

  1. How to utilize WPF softphone for VB.NET
    First learn the fields of application possibilities of the WPF softphone for VB.NET. When you are familiar with the main usage issues you can switch to configuration steps.

  2. How to configure Windows Forms Softphone for VB.NET
    This page helps you configure your own WPF softphone in VB.NET based on Ozeki SIP SDK step by step. Follow the configuration instructions to gain an efficient WPF softphone for VB.NET!

  3. Source code for Windows Forms Softphone in VB.NET
    To get learn the source code of this sample program in details check the source code explanation page for clarification. On this page you will find the source code with comments in a transparent way.

Licensing information

When you decide to purchase Ozeki VoIP SIP SDK license you may be interested in licensing policy.

A purchased Ozeki VoIP SIP SDK "license" can be used to build a "single product". This "single product" (along with its subsequent versions) can be freely distributed in as many copies as you wish without paying any royalties or license fees to Ozeki.

To check the available Ozeki VoIP SIP SDK licenses or to place an order go to Pricing and licensing information page!


For more information please do not hesitate to contact us at info@voip-sip-sdk.com!