windows softphone development in vb.net

raymondholaio2040 · 2012-04-06T01:39:19.000Z

Hi! I am a developer interested in softphone development in vb.net and i am searching for reliable and easy-to-use development kits. I am interested in an sdk which has its similar sample program here: How to develop windows forms voip sip softphone using visual basic net I need your suggestions and opinions about it. Thank you for understanding me and for your answer.

tonybunch5924 · 2012-04-10T07:38:36.000Z

The softphone we use for our call center our developers used it built using this SDK from the below company.

pcbest.net

SIP SDK, VoIP SDK | PCBest Networks

An easy, powerful, and OOP designed SIP SDK with rich samples for C#, VB.NET, C++, VB6, C++ Builder, Delphi and ActiveX developers.

tono3854 · 2012-06-25T03:51:12.000Z

Is there any free version of any SDK? I have found a lot of them but none free…

austincarven · 2014-03-21T08:21:41.000Z

I use Ozeki VoIP SIP SDK. I developed a softphone using that and it works well in my corporate communication system. I can honestly recomment this SDK for .NET developers. And it has a FREE TRIAL version that can be download from here: http://www.voip-sip-sdk.com/p_21-download-ozeki-voip-sip-sdk-voip.html