[. . . ] Each phone jack operates independently, with separate phone service and phone numbers--like having two phone lines. [. . . ] With Internet telephony, along with low domestic and international phone rates, an impressive array of special phone features are available. Choose your preferred free local dialing US area code, regardless of where you live. Or add a virtual phone number in any area code, forwarded to your Internet phone. Operating Humidity Storage Humidity 101 mm x 101 mm x 15 mm (3. 98" x 3. 98" x 0. 59") 4. 80 oz. (0. 14 kg) 5V DC 2. 0A FCC, cUL, CE 41ºF to 113ºF (5ºC to 45ºC) -13ºF to 185ºF (-25ºC to 85ºC) 10% to 90%, Non-Condensing 5% to 90%, Non-Condensing Minimum Requirements · High-speed Internet connection (cable/DSL/other) · Broadband Router or Gateway to share Internet connection · Regular analog touch-tone telephone or fax machine · CD-ROM drive Package Contents · · · · · · · Phone Adapter Power Adapter User Guide on CD-ROM Network Cable Quick Installation Registration Card Vonage Service Materials Linksys products are available in more than 50 countries, supported by 12 Linksys Regional Offices throughout the world. For a complete list of local Linksys Sales and Technical Support contacts, visit our Worldwide Web Site at www. linksys. com. Specifications are subject to change without notice. [. . . ] For a complete list of local Linksys Sales and Technical Support contacts, visit our Worldwide Web Site at www. linksys. com. Specifications are subject to change without notice. [. . . ]