OSTel - Open Secure Telephony

Welcome to the public documentation portal for ostel.co users and developers of open source secure voice and video calling services. OSTel is a public service in a larger network called OSTN (Open Secure Telephony Network).

  1. Server Documentation if you would like to set up a backend server to provide your own secure VoIP service
  2. Client Documentation if you would like to configure a client application for ostel.co or your custom server


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