How dual SIM works when travelling

Dual SIM means your phone can have two active lines at once — commonly one physical SIM and one eSIM. For travellers, this is one of the most practically useful features on a modern phone: your home number stays reachable, while a travel eSIM handles mobile data (and sometimes calls) at your destination.

How it's typically set up

• Your physical SIM stays in the phone, handling calls and texts on your usual number
• Your BrisqNet eSIM is installed as the second line, set as the active line for mobile data
• You can usually choose, per app or per contact, which line handles calls if both are configured for voice

Common configurations

Most travellers set their eSIM as the default for mobile data and leave their home SIM for calls and texts only, with data roaming turned off on that line to avoid unexpected charges. Some phones also let both lines handle calls, so you can receive on either number.

Checking your phone supports it

Not every device supports two active lines simultaneously — some support multiple stored eSIM profiles but only one active at a time. Check your specific model's specifications, or see our supported devices guide, before assuming dual SIM will work exactly as described.