Alternativer til Ubivox til Self-Hosted med open source-licens

• Self-Hosted
  Alle platforme Windows Mac Linux Android iPhone Apple Watch iPad Android Tablet Windows S Web Self-Hosted Software as a Service (SaaS) Python BSD Windows Mobile Wordpress Facebook Facebook Messenger Solaris Amazon SES (Simple Email Service)
• Open Source-licens
  Enhver licens Gratis licens Open Source-licens Kommerciel licens