Wireless modems are used to connect the internet networking of desktop computers, laptops, personal digital assistant by functionalizing the microwave frequencies in WiFi and WiMax standards. Wireless modems with the combination of VoIP technology may work as telephone with incoming and out coming calls. Wireless cable modem is the fastest and easiest medium of networking without hassles of installation of wires for whole set up at home or office. Wireless cable modem offers the portable workplace and you may work where you go easily.