C#.NET Skinnable Open Source Softphone (SIP)
I'd like to integrate a softphone into one of my projects.  Right now I'm using Zoiper, but if the barrier to having my _own_ SIP softphone is low I'm going to go for it.

Requirements:

 - C#.NET either to build in to the application or as a dll
 - BSD style license or similar (GPL is a non-starter)
 - "skinnable," meaning the project can build to a working softphone and I can rewrite UI
 - can register as a SIP client


Has anyone encountered such a phone project?  Thanks.
C#.NET Skinnable Open Source Softphone (SIP)
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I'd like to integrate a softphone into one of my projects.  Right now I'm using Zoiper, but if the barrier to having my _own_ SIP softphone is low I'm going to go for it.

Requirements:

 - C#.NET either to build in to the application or as a dll
 - BSD style license or similar (GPL is a non-starter)
 - "skinnable," meaning the project can build to a working softphone and I can rewrite UI
 - can register as a SIP client


Has anyone encountered such a phone project?  Thanks.