Zoom Wireless-N Router with USB Port for Cellular Modem or Phone Links to Internet with an iPhone, Android phone, 3G/4G/LTE USB modem, or fixed broadband connection with multiple devices and provides an advanced firewall to protect your network. Better than smartphone hotspots in wireless range, security, compatibility, and phone battery conservation - the 4501 will not only conserve the battery, but even charge a connected smartphone! Provides automatic failover from DSL or cable service to cellular data service when connected to both a 3G/4G modem and a cable or DSL broadband modem Expands the range and enhances the data rate of a mobile broadband modem - just place the 4501 and attached modem where a cellular signal is best (typically near a window) and complete the local connection using a robust Wireless n/g/b connection of up to 150 Mbps. Over 450 3G or 4G USB modems, Android phones, and select iPhones (iOS 5.0 and earlier) are supported as cellular data devices with a complete list of supported devices available on the Zoom Telephonics Web site (zoom.net).