title: Web based SIP Softphone app with open source api
body: <p>I am planning to build a web based softphone which can be used with any SIP server (now need to support Genesys). Can you please suggest any C# based open source solution?</p>
  
  <p>I was exploring these option and heard about Lync client SDK for SIP interaction. Can I use Lync Client SDK to build SIP softphone which can register work with 3rd party SIP server like Genesys etc? </p>