Alternativer til Acrobits Softphone for alle platforme med open source-licens

• Alle platforme
  Alle platforme Windows Mac Linux Chrome OS Android iPhone Windows Phone iPad Android Tablet Web Software as a Service (SaaS) Firefox Windows Mobile Xfce PortableApps.com Chrome WebRTC Microsoft Office Suite Microsoft Exchange Server
• Open Source-licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens