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Useful Terms and Definitions

Useful Terms and Definitions


From time to time we can use some words that may not ring a bell with you; some technical jargon. If so, don't worry! We've put together some of these useful terms and their definitions to help you along the way


WiFi - Wireless internet connection over a modem.


Mobile Data - Wireless internet connection over a phone


4G - Specifically, 4G stands for the fourth generation of data technology for cellular networks. 4G/LTE (Long Term Evolution)  is a wireless communication standard for high-speed data.


All You Can Eat Data (AYCE) - Three’s exclusive unlimited data service.


App - Apps are programs that run on your smartphone. You can view and download them in the App Store (iPhones), Play Store (Android) and Windows Apps (Windows Phones).


Social media - Services like Facebook, Instagram and Twitter that let you connect and share with others.


Instant messaging (IM) - Services like iMessage, WhatsApp or Viber which let you send text, pictures, video and audio using your internet connection. Most people will download  Whatsapp and Viber and then use them as an alternative to MMS because it uses the data. Remember, if you've got AYCE then you can use these apps to your heart's content.


Roaming - Using your phone outside of the Republic of Ireland. It can cost more depending on your plan so make sure you check your full allowances on My3 before you leave.


SIM card - The unique card that carries your phone number and network ID.


Memory card (SD card) - A small card that can store extra media like photos, video, files or apps and games.


Manual Network Selection (MNS) - This is the process of turning off the automatic network selection on your phone so it can search for all the available networks in your location - It's in your Settings > Network Settings.


APN - This stands for Access Point Name. It's a setting on mobile phones or Modems/Routers that Three uses to set up a connection to the gateway between our network and the internet.


Carrier - Network Operator/Telco Company.