The F840 has 4G VoLTE (SIM), WiFi, Tethering and Bluetooth connections. You can connect up to 8 devices to the internet. Its Android 8.1 operating system will allow you to install applications, including the largest ones for videoconferencing. Thus all professional telephony services follow you everywhere, starting with your home in the context of teleworking. Another of its assets is its ability to be deployed anywhere with the only need for a power supply and mobile coverage. No more need for telephone line connections, use your F840 everywhere without the need for prior installation! Thanks to its advanced functions, you can manage your calls, send SMS, MMS and use multimedia services (images, audio, video, applications) via its Android software.