Experience seamless and reliable communication with this Fixed Wireless Terminal Host, designed for easy installation and versatile GSM mobile network compatibility. Utilizing a GSM SIM card, this device eliminates the need for additional ground wiring, making it an ideal solution for both domestic and international voice services across fixed and mobile networks. Maintain your traditional landline dialing habits while enjoying modern wireless connectivity and advanced features tailored for efficient wireless access and security applications. Key Features: · Easy Installation: No need for ground wiring; simply insert a GSM mobile SIM card to get started quickly and effortlessly. · Wide Network Support: Compatible with GSM networks operating on 1900/1800/900/850 MHz bands, supporting international, domestic, local, fixed, and mobile voice services. · Familiar Operation: Retains conventional telephone landline dialing methods, ensuring a smooth transition without changing user habits. · Reverse Polarity Signal Support: Enables access to meters or computer meters, enhancing integration with existing monitoring systems. · Built-in Watchdog Circuit: Automatically monitors device operation status and performs auto-restart upon failure, ensuring continuous and stable performance. · Advanced IP Management: Features automatic IP function with multiple IP settings and supports fixed long-distance automatic insertion of calling IP prefixes such as 17951, 17911, and 193. · Customizable Call Settings: Supports international, domestic, and local call access configurations, preset local area numbers, local segments, and forbidden dialing numbers or segments. · Enhanced Security: Offers encryption settings including PIN code and PUK code encryption for card lock functionality, safeguarding your communication. · LED Status Indicators: Displays signal strength, standby status, and working status for easy monitoring and troubleshooting. Specifications: · Color: White · Caller ID: Yes · Interface Type: RJ11 · Supported Network: GSM 1900/1800/900/850 MHz · Signal Sensitivity: <-104 dBm · Transmitting Power: <2W · Antenna Gain: >1.5 dB · Power Supply: 5V 1A · RJ11 Dial-up Audio Frequency: 450 Hz · RJ11 Feed Current: 20mA–40mA · RJ11 Reverse Polarity: Supported · RJ11 Caller Signal: DTMF · Operating Temperature: -20°C to 50°C · Relative Humidity: 10% to 90% · Package Weight: 430g (15.2 oz) Package Includes: · 1 x Fixed Wireless Terminal Host · 1 x Power Supply · 1 x Antenna · 1 x Telephone Line · 1 x User Manual Note: This product supports only 2G GSM networks (1900/1800/900/850 MHz). Please verify local network compatibility before purchase. The product may be shipped as either the new or old version randomly. Ideal for wireless access and security applications, this Fixed Wireless Terminal Host combines convenience, security, and reliable GSM connectivity to keep your communications efficient and uninterrupted.