160Chapter 9: Travel Tipswww.gateway.comModem■ Take a telephone cord to connect the modem to telephone jacks. If youare traveling internationally, take telephone jack adapters or an acoustichandset coupler.■ Take a telephone line protector.■ Take a telephone line tester to check for unsafe lines, especially if you aretraveling internationally.■ Take remote access information with you so you can connect to your ISPwhile outside of your usual calling area. A list of country dialing codes maybe especially useful if you are traveling internationally.Radio frequency wirelessconnections■ Every country has different restrictions on the use of wireless devices. Ifyour notebook is equipped with a wireless device, check with the localradio approval authorities prior to your trip for any restrictions on the useof a wireless device in the destination country.■ If your notebook came equipped with an internal embedded wirelessdevice, see “Safety, Regulatory, and Legal Information” on page 275 forgeneral wireless regulatory guidelines.■ Wireless communication can interfere with equipment on commercialaircraft. Current aviation regulations require wireless devices to be turnedoff while traveling in an airplane. IEEE 802.11a, IEEE 802.11b, andIEEE 802.11g communication devices are examples of devices which usewireless to communicate. For instructions on how to turn off your wirelessdevice, see “Turning your wireless Ethernet on or off” on page 193.