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Travel SIM
Setup Guide
When you're travelling internationally, this guide helps you
  • Use the GTN travel SIM for data

  • Keep your UK number active for calls and SMS

  • Switch between SIMs for flexibility.

Iphone eSIM setup


1. Open settings

  • Go to Settings > Mobile Data.

2. Choose the default line for data

  • Tap Mobile Data > Select your GTN travel SIM.

  • Turn on "Allow Mobile Data Switching" if you want the phone to auto-switch to the stronger data network.

3. Choose SIM for calls & texts

  • Go to Settings > Mobile Data > Default Voice Line.

  • Choose your UK number if you want to continue receiving UK calls/texts.

4. Disable data roaming on UK SIM

  • Go to Settings > Mobile Data, tap your UK SIM, and turn off Data Roaming.

    (Recommended)

Android eSIM setup


1. Open settings

  • Go to Settings > Network & Internet > SIMs or Mobile Network

2. Choose default line for data

  • Tap Mobile Data > Select your GTN travel SIM

3. Calls and SMS preferences

  • Set which SIM to use for Calls + SMS.

  • Often found under Calls/SMS preference or Dual SIM settings.

4. Disable data roaming on UK SIM

  • Tap your UK SIM > Toggle off Data Roaming to prevent unexpected charges.

    (Recommended)