Now Available!

The Duet ® D888 Talk Abroad® Dual SIM Card GSM Cell Phone from NATIONAL GEOGRAPHIC™

Two SIM Cards Active at Same Time

This highly anticipated travel Duet D888 Talk Abroad™ unlocked GSM cell phone from NATIONAL GEOGRAPHIC™ represents a major step forward in convenience and savings in overseas communications because it lets travelers maintain two active SIM card accounts in one phone simultaneously.

Imagine the convenience of keeping your T Mobile® or AT&T iPhone® number active while also being able to make or receive inexpensive calls from an Italy SIM or the NATIONAL GEOGRAPHIC™ international SIM card – at the same time without having to swap SIMs.

National Geographic™ Talk Abroad® Duet® Dual SIM Cell Phone Features:

  • Tri-band GSM capabilities: 1900 MHz for N. America, 900/1800 MHz for international frequencies
  • International battery charger, 110/220VAC, and plugs for US, Euro. and AUS
  • Includes USB data cable and hands-free earpiece 
  • TWO batteries, pre-charged to 50% capacity included
  • Bluetooth connectivity, MP3 player and stereo speakers
  • 1 GB Micro SD memory card for storage of MP3s, phone book, calendar, photos, video and sound recordings
  • Pre-loaded with stunning National Geographic™ videos, photos, wallpaper and ringtones
  • Includes the NATIONAL GEOGRAPHIC™ international SIM card and $29 call credit! (see below for rates and zones)

 Only $199

 

Also Sold Separately: NATIONAL GEOGRAPHIC™ International Prepaid SIM Card

National Geographic SIMThis multinational prepaid SIM is perfect for vacations, cruises, business trips, study abroad programs or any occasion when you need one phone number that roams seamlessly to multiple countries.

Key Features:

  • The only international roaming SIM card from NATIONAL GEOGRAPHIC™
  • Pre-loaded with 30 minutes of talk time in 60 countries (in Zone 1 Countries)
  • FREE incoming calls, calls to U.S. average $1 a minute (in Zone 1 Countries)
  • Free 24-hour, U.S.-based customer service, balance check, credit top up
  • Voice mail and text messaging service
  • Pay-as-you-go service – no contracts, no overages, no bills
  • Roams in 160 countries (rates vary)
  • Comprehensive English language User’s Guide and wallet-sized pocket guide
  • For use in SIM-unlocked, international GSM cell phones (GSM phone requires minimum 900/1800 MHz capabilities)*

*Product is SIM card only, GSM phone not included.

Only $49

Single Cell Phone Number in Multiple Countries
With a UK-based phone number, the NATIONAL GEOGRAPHIC™ SIM offers cell phone service in over 160 countries around the world.

Regardless of where you are or when you cross the border your friends, family and business associates can reach you on a single overseas cell phone number. It’s simple and reliable.

Free Incoming Calls, Low Outgoing Rates
Did you know that most Europeans, Australians and others don’t pay for incoming calls on their cell phones? That’s because most overseas cell phones operate on a pay-as-you-go basis and under this system incoming calls are free to receive.

The NATIONAL GEOGRAPHIC™ international SIM operates under the same type of service. In most countries in Europe, as well as in Australia, Israel, Brazil and all other Zone 1 countries [link to: zone 1 country list], incoming calls are free and outgoing calls to the U.S. and other Zone 1 countries are only $0.90 a minute to landlines, and $1.15/minute to cell phones.

Prepaid, or Pay-as-You-Go Service – No Bills, Fees, Roaming Charges or Overages
The NATIONAL GEOGRAPHIC™ SIM comes pre-loaded with $29 available outgoing call credit. When outgoing calls are made, per-minute charges are deducted from the available prepaid balance. When the outgoing call balance is low, you simply “top up” in increments of $29 using your credit card via a free call to the 24 hour customer service line. When your balance is zero, you can still receive free incoming calls in Zone 1 Countries [link to: zone 1 country list]!

Free 24/7 Customer Service
The NATIONAL GEOGRAPHIC™ SIM offers 24 hour, 365 day customer service from their U.S. call center. No matter where you are in the world, any time of day or night, you can check your remaining balance, add additional call credit and receive technical support.

Ultimate in Travel Convenience
With one international roaming cell phone number there’s no need for others to keep track of your travel itinerary, and you don’t have to inform anyone if there’s a change in your travel plans. Before you leave you can simply say, “While I’m overseas you can reach me on this number”.

Easy Planning from the Road
Making and confirming reservations, calling a taxi, and tracking lost luggage become much easier with a single phone number that travels with you.

A multinational SIM makes it very easy to make plans and deal with common travel contingencies during your trip abroad. Single country SIMs, pay phones and hotel phones don’t provide nearly as much freedom when you’re on the move.

For Use in Unlocked, GSM Phone with 900/1800 MHz Bands
Simply install the SIM (Subscriber Identity Module) in the back of an unlocked GSM phone with 900/1800 MHz frequency capabilities (more frequencies are ok) and enjoy low rate service with one phone number in more than 160 countries.

Phone and Sim

 

 

 

SIM Card and GSM Cell Phone Basics

SIM = Subscriber Identity Module
GSM = Global System for Mobile Communications

A SIM card is an integrated circuit inlaid on a rectangular plastic chip with a notched corner that is installed in the back of a GSM cell phone. In GSM phones the SIM is the brain of the phone and determines which carrier network the phone operates on, the phone number in use, and tracks incoming and outgoing calls.

Two U.S. Cell Phone Companies Use GSM Phones and SIM Cards
GSM/SIM based cell phone carriers in the U.S. include AT&T and T Mobile.

Verizon and Sprint do not use GSM phones and do not have SIM cards.
                                 
GSM Phone Frequencies Differ Outside the United States
While two cell phone carriers in the U.S. use the GSM technology, U.S. GSM cell phones operate on different frequencies from GSM networks outside the U.S.

In the U.S. and Canada, the two GSM frequencies used are 850 and 1900 MHz.

In Europe and the rest of the world where GSM is used, the common GSM frequencies are 900 and 1800 MHz.

In order for a GSM phone to make or receive calls outside the U.S. and Canada, the phone must operate on at least the 900 and 1800 MHz GSM frequencies. More bands are fine too.

Phone Must be SIM Unlocked
In order for the cell phone to work with the NATIONAL GEOGRAPHIC™ International SIM Card the GSM cell phones must be SIM “unlocked”. This means the cell phone can operate with any SIM and is not tied to a specific individual carrier, usually the carrier it was purchased through.

How do you know if your phone is Unlocked? The most reliable way is to insert a SIM card from another carrier. If you have an AT&T phone, insert a SIM from T Mobile and turn on the phone to see if it works. Or vice versa. Or insert the NATIONAL GEOGRAPHIC™ SIM.

If the phone says, “SIM Error” or “Insert SIM” the phone is locked and will need to be unlocked prior to use with the NATIONAL GEOGRAPHIC™ SIM.

Or ask your cell phone provider or the person from whom you purchased or borrowed the phone if the phone is unlocked.

Luckily most carriers will unlock their customer’s cell phone upon customer request. There may also be information on the internet for unlocking your model handset.

FAQs
Please see our Frequently Asked Question section for answers to questions such as, “How do I know if my phone is unlocked?”, “What is GSM?” and many more questions and answers related to international cell phone phones and roaming SIM cards.