http://projects.ag-projects.com/projects/documentation/wiki/Repositories

https://wiki.asterisk.org/wiki/display/AST/Secure+Calling+Tutorial

http://sylkserver.com/download/

security prednaska

https://forum.mikrotik.com/viewtopic.php?t=137634

provisioning

https://github.com/lynt-smitka/Cisco-SPA-CZ-provisioning

webrtc phone

https://wiki.freepbx.org/display/FPG/WebRTC+Phone-UCP

to be continue …

https://github.com/fusionpbx/fusionpbx