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  2. Unstructured Supplementary Service Data - Wikipedia

    en.wikipedia.org/wiki/Unstructured_Supplementary...

    Unstructured Supplementary Service Data ( USSD ), sometimes referred to as " quick codes " or " feature codes ", is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator 's computers. USSD can be used for WAP browsing, prepaid callback service, mobile-money services, location-based content ...

  3. Passenger name record - Wikipedia

    en.wikipedia.org/wiki/Passenger_name_record

    A passenger name record ( PNR) is a record in the database of a computer reservation system (CRS) that contains the itinerary for a passenger or a group of passengers travelling together. The concept of a PNR was first introduced by airlines that needed to exchange reservation information in case passengers required flights of multiple airlines ...

  4. Sabre (travel reservation system) - Wikipedia

    en.wikipedia.org/wiki/Sabre_(travel_reservation...

    Sabre Global Distribution System, owned by Sabre Corporation, [ 1] is a travel reservation system used by travel agents and companies to search, price, book, and ticket travel services provided by airlines, hotels, car rental companies, rail providers and tour operators.

  5. Add, replace or remove AOL account recovery info - AOL Help

    help.aol.com/articles/add-or-update-aol-account...

    Keep a valid mobile phone number or email address on your account in case you ever lose your password or run into a prompt to verify your account after signing in. We'll also include your recovery email address when sending a notification of changes made to your account. Add a mobile number or email address

  6. Electronic ticket - Wikipedia

    en.wikipedia.org/wiki/Electronic_ticket

    Passengers with e-tickets are required to check-in at the airport for a flight in the usual manner, except that they may be required to present an e-ticket itinerary receipt or personal identification, such as a passport, or credit card. They can also use the Record locator, often called booking reference, a code of six letters and digits.

  7. Apple begins sending hacker-friendly iPhones to security experts

    www.engadget.com/apple-security-research-drive...

    The security experts participating in Appleā€™s Security Research Device (SRD) Program may soon be receiving their hacker-friendly iPhones. According to MacRumors, the tech giant has notified the ...

  8. Cybersecurity 101: How to protect your cell phone number and ...

    techcrunch.com/2018/12/25/cybersecurity-101...

    What you can do to protect your phone number. Just like you can apply two-factor authentication to your online accounts, you can add a secondary security code to your cell phone account, too. You ...

  9. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.