We've been trialling a SIP and WebRTC service at https://FedRTC.org for about a year now.

Anybody with a Fedora OpenID can request a matching SIP address in the service. For example:

Fedora user ID: pocock@fedoraproject.org FedRTC SIP address: pocock@fedrtc.org

The service is completely built using RHEL7/CentOS7/EPEL7 packages.

Users have been able to successfully connect to the service using: - WebRTC from Firefox and Chrome on just about any OS, including mobile - softphones packaged in Fedora (GNOME Empathy, Ekiga and many others) - mobile SIP apps such as Lumicall[1]

A key benefit of the service is that it federates with other communities such as the Debian SIP service[2]. People without a Fedora user ID can make calls to your SIP address using https://FreePhoneBox.net

I would encourage anybody who hasn't tried the service already to do so. Please give feedback through the mailing lists for any specific softphone you try or the Free-RTC mailing list: https://lists.fsfe.org/mailman/listinfo/free-rtc

1. http://danielpocock.com/lumicall-rapid-provisioning-opus-and-other-enhanceme... 2. https://rtc.debian.org