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With Ozeki VoIP SIP .NET SDK you can develop web page embedded VoIP solutions called webphone for webinars and web conferences. This sample program is based on Ozeki SIP SDK that makes it possible to build IP based telephone solutions, such as (Flash/Silverlight) softphones, webphones, VoIP client software based on the SIP protocol. Works with VoIP PBX systems and Internet based VoIP service providers; can serve thousands of simultaneous calls. The client side of this sample program is written in Adobe Flash and the server side of it is written in C#. The SDK uses .NET framework (.NET 4.5 or .NET 4.0 or 3.5 SP1) and its advantages as it is reliable, stable and flexible for further development. Ozeki VoIP SIP SDK can be easily implemented to already existing systems. Ozeki provides you source codes and the support team helps you to configure your purchased software to your actual needs. With the help of Ozeki VoIP SIP SDK both voice and video communication can be started but the video streams need separate displays. Ozeki VoIP SIP SDK was designed to guarantee excellent sound quality for the clients. Therefore Ozeki VoIP SIP SDK supports various codecs such as G.711 aLaw/uLaw, G.729, iLBC, GSM, G.722, SPEEX, SPEEX-WB. Ozeki VoIP SIP SDK allows you to choose from different development environments like Visual Studio 2010 (which is recommended), Visual Studio 2008, Visual Studio 2005 and Adobe Flash Builder 4.5. To make or receive VoIP phone calls, it can be joined to many PBX systems (for example: Asterisk PBX, Cisco UCM, 3CX Phone System, Kamailio PBX, etc). Ozeki VoIP SIP SDK is compatible with almost all VoIP service providers (eg: Skype Connect, Gafachi, Callcentric, SureVoIP, VoIPtalk etc.). After you have purchased an Ozeki VoIP SIP SDK .Net license you can feely use this license with your product and you are allowed to distribute your product in as many copies as you wish. You can upgrade your Ozeki VoIP SIP SDK license easily when you need a higher capacity