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Glossary

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  • What is GSM? Everything travelers need to know
    Glossary

    What is GSM? Everything travelers need to know

    If you’re a frequent international traveler, you’ve probably encountered GSM before. Whether you knew it, GSM plays an important role in keeping you connected when you travel abroad. But what exac...

    Dawn Prevete-author-icon
    Dawn Prevete
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    06.01.2026
  • What is an APN and how to fix connection errors
    Glossary

    What is an APN and how to fix connection errors

    There’s nothing more frustrating than seeing full signal bars on your phone while your internet refuses to load. You might be able to make calls or send texts, but your browser, maps, and apps remai...

    Jelena Relić-author-icon
    Jelena Relić
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    06.01.2026
  • What is mobile internet? A traveler's guide to staying connected
    Glossary

    What is mobile internet? A traveler's guide to staying connected

    When you check Google Maps in a new city, send WhatsApp messages, or scroll through Instagram Reels on the go, you’re using mobile internet. Mobile internet (also called mobile or cellular data) con...

    Sarah Kirton-author-icon
    Sarah Kirton
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    05.13.2026
  • What is airplane mode and how does it work?
    Glossary

    What is airplane mode and how does it work?

    You’ve just settled into your seat and started thinking about the destination ahead. Then comes the inevitable request from the flight crew: Ensure that all your devices are set to airplane mode. Ai...

    Dawn Prevete-author-icon
    Dawn Prevete
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    05.12.2026
  • What is an EID number (and how to find it)
    Glossary

    What is an EID number (and how to find it)

    Troubleshooting a connection issue and support asks for your EID number? If you don’t know what that is, you aren’t alone. The embedded identity document (EID) is a critical component for connecti...

    Ana Marković-author-icon
    Ana Marković
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    04.29.2026
  • What is an IMEI number and why does it matter?
    Glossary

    What is an IMEI number and why does it matter?

    An International Mobile Equipment Identity (IMEI) number acts as your phone’s unique ID. If you’re thinking about buying a second-hand phone, an IMEI number can help you avoid purchasing a device ...

    Ana Marković -author-icon
    Ana Marković
    calendar-icon-5
    03.17.2026