The FS-FENIX02-S4G is a powerful evolution of the FS-FENIX01-NWE network access controller, now enhanced with integrated 4G cellular connectivity and innovative telephony-based access. Designed for reliable, scalable security in locations with limited or no fixed network infrastructure, it supports up to 20,000 users and stores 100,000 events, making it ideal for remote offices, distributed facilities, or mobile deployments. Integrated 4G LTE Module: Provides always-on cellular connectivity for real-time communication, remote management, and over-the-air updates - no Wi-Fi or Ethernet required. Open-by-Call: Authorized users gain access simply by calling the controller’s dedicated phone number—no app, card, or keyfob needed. Phone Number as Credential: Each approved phone number functions as a unique, secure access credential, managed directly through Moonwell’s Access Control Software. Phone-to-Wiegand Converter: Automatically translates incoming call events (including verified caller ID) into standard Wiegand 26/34 output.