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What is Dual SIM and how do I use it?

Dual SIM gives you two phone numbers on a single smartphone for calling and texting (SMS and MMS). You can have separate personal and business numbers, or add a second line when travelling internationally.

Dual SIM service is offered through a combination of a physical nano-SIM and an eSIM. An eSIM is a digital SIM that lets you activate a cellular plan without having to use a physical SIM card.

The two phone numbers can be on the same account, on different accounts, or from different carriers (for example, one line from Virgin Plus and one line from an international carrier).

Learn more about dual-SIM compatible devices.

Dual SIM FAQ: Apple

  • Can I have two active Mobility lines both using eSIM on my iPhone?
  • How do I set up Dual SIM? Can both lines be connected to the network at the same time?
  • How do I tell which phone number I’m using for calling?
  • If I have a data plan on both lines, which data plan will I use and therefore be billed for?
  • Can I use data while on a call?
  • How will I be billed for voice and messaging?
  • What happens when I roam with multiple active SIMs?
  • Will E9-1-1 and T9-1-1 work on both lines?
  • How do I access my voicemail with Dual SIM on an iPhone?

Dual SIM FAQ: Android

  • Can both lines be connected to the network at the same time?
  • How do I tell which phone number I’m using for calling?
  • If I have a data plan on both lines, which data plan will I use and therefore be billed for?
  • Can I use data while on a call?
  • How will I be billed for voice and messaging?
  • What happens when I roam with multiple active SIMs?
  • Will E9-1-1 and T9-1-1 work on both lines?