GSM Wireless Fixed Telephone Terminal with LCD Display, 2G/3G/4G SIM Card Slot, Alarm System & Connectivity, Industrial-Grade for Public Phones & Emergency Communication

Versatile GSM Wireless Terminal: This industrial-grade fixed telephone device utilizes GSM networks (900/1800MHz) to provide reliable wireless voice and data services. It supports 2G, 3G, and 4G SIM cards, making it ideal for areas where traditional wired telephones are unavailable or impractical.
Multi-Device Connectivity & Clear Display: Features an LCD screen for clear signal strength and call status monitoring. Easily connect to landlines, security alarm systems, PBX switches, voice boards, call centers, recording boxes, and more via its standard interfaces.
Reliable Industrial Design for 24/7 Operation: Built with an anti-noise, anti-interference circuit and a built-in watchdog for automatic crash detection and recovery. Ensures stable, 24-hour operation to prevent missed calls in demanding environments.
Ideal for Public & Emergency Use: Perfect for setting up wireless public phone booths, emergency phones on highways, and communication in remote rural, mountainous, or