How to ring a C# SIP softphone using the SIP stack without using an IP PBX

This page explains how to ring a C# SIP softphone using the SIP stack without using an IP PBX. Since the main goal of this guide is to demonstrate how to ring a softphone without an IP PBX you will only find information for this process. You can find here the starting steps for creating an efficient VoIP system to make VoIP calls.

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

This sample program is meant to be an example that explains in details how you can ring a SIP softphone even if you do not use an IP PBX. The main purpose of this sample program is to demonstrate this simple process. However during the development of a SIP softphone it is also a critical mile stone. Take a look at the source code of this sample to make the first steps in the development of your own SIP softphone. Further tips and guides will be also shared to make your development more efficient and fast.

Ozeki C# SIP softphone example can be obtained by
clicking the download link below:
Download Ozeki C# SIP softphone example!

Getting started

On the following webpages more detailed information can be found about the utilization and the source code of this solution.

  1. How to utlize a SIP softphone
    On this page you can elaborate on how a SIP softphone can be used. After you get to know its main utilization possibilities you can switch to check the source code.

  2. Source code explanation on how to ring a C# SIP softphone
    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.

Which Ozeki SDK license you need

The licensing of Ozeki VoIP SIP SDK is based on the numbers of simultaneous calls can be made. In this way, you can choose from various licenses according to your needs. If you need only a few simultaneous calls, you can select a lower capacity SDK license. While if you need large numbers of calls at the same time, you can choose a high capacity SDK license.

For further information about pricing and licensing of Ozeki VoIP SIP SDK please check the following webpage: Pricing and licensing information.

When you purchase a license you can easily activate your demo application by entering the serial number you received from Ozeki after purchase. You can enter the serial number by opening the Ozeki VoIP SDK License Manager. In Registration tab you can provide the serial number and click on Activate.

When you decide to purchase Ozeki VoIP SIP SDK license you can select and order the suitable license at Ozeki VoIP SIP SDK licenses page right now.

How to activate your Ozeki SIP SDK license?

After you purchased an Ozeki VoIP SIP SDK license you need to activate it with the serial number. Without activation, you can only use the SDK in trial mode. You will receive your serial number from Ozeki right after purchase. The following steps demonstrate how you can activate the trial version with your serial number:

First, you need to download the trial version of Ozeki VoIP SIP SDK. For activating the trial version open the Ozeki VoIP SIP SDK License Manager (Figure 1).


Figure 1 - License Manager

As the next step, enter your serial number you have received from Ozeki at Serial number edit box (Figure 2).


Figure 2 - Enter your serial number

Finally, you just need to click on Activation button to make your license activated. If you enter a valid serial number and the activation is successful you will receive a notification about this fact (Figure 3).


Figure 3 - Activation successful

Ozeki C# SIP softphone example can be obtained by
clicking the download link below:
Download Ozeki C# SIP softphone example!

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

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