The document describes the astTECS IP PBX telephony solution for educational institutions. The solution brings powerful communication tools and applications to simplify daily tasks for faculty and students, while improving productivity and reducing costs. It supports the use of smartphones as extensions via WiFi, call management systems for students, overhead announcements from phones, and video conferencing. The system also provides unified communications, call recording, reporting, voicemail, fax-to-email, and other features. The network architecture uses PRI, analog, GSM, IP phones, softphones, WiFi phones, and FXS gateways connected via LAN to the astTECS IP PBX.