The 2015 New Version is made for the Last ASUS routers RT-ACXXX

Tested on RT-AC56U router  with strong ARM processor this version is powerfull and  can work like a traditional server
It have all features
- Hotel PBX
- Captive portal wifi access with history
- Great router with VPN server

cyber-wrt network schematic

This new version on new router have no limitations and work like a strong server !

Videos demo of previous version on RTN-16     CyberhotelCyberhotel on RT-N16 Asus router

Check here for Cyber-wrt 2012 PBX user guide (This guide is ok also for 2015 version except the new features)