Keep your home number with a Canadian SIM: dual SIM setup

A compatible dual-SIM phone can keep your home number alongside a Canadian line. Choose the Canadian line for local data and the appropriate line for calls, then review your home carrier’s roaming charges. Leaving the home SIM active can still incur charges; switching the data line does not make every call or text free.

Check that your phone can use both lines

Dual SIM means the handset can use two subscriptions. Depending on the model, that can mean a physical SIM plus an eSIM, two eSIMs, or two physical cards. Storing several eSIM profiles is different from keeping several lines active at once.

Check the exact model and regional version, and confirm it is unlocked if the two plans use different carriers. Our compatibility guide walks through those checks. If the phone supports only one active line, you may need to switch between profiles or use a second device.

Choose which SIM to use for data and calls

These are starting choices, not a guarantee against all charges. Your carrier decides how it bills incoming calls, outgoing texts, voicemail, Wi-Fi calling, and roaming passes. Check those rules before leaving the home line active.

On iPhone

In Settings, open Cellular or Mobile Data. Label the plans, choose your cellular-data line, and review the default voice line. Check Allow Cellular Data Switching if you want to control whether data can move between lines.

The phone can remember a previously selected line for a contact, so inspect the displayed line before calling. For current screens and the limits on receiving a second call while another is in progress, use Apple’s dual-SIM instructions.

On Android

Pixel lets you choose preferences for calls, texts, and data in its SIM settings. Use Google’s dual-SIM guide for your model, including how its calling behaviour changes when two SIMs are active.

On supported Samsung phones, use SIM manager under Connections to inspect the installed lines and preferred SIM settings. Samsung’s eSIM setup guide covers adding the travel line. Menu wording differs by model and software version, so verify each selection instead of assuming the labels match another phone’s screenshots.

Keeping your home number for verification texts

If an important account sends codes to your home number, keep access to that account and check how the home carrier handles SMS in Canada. A Canadian SIM cannot receive messages addressed to a different number just because both are installed on the same phone.

Before travel, review available account-recovery methods and test that you can sign in without relying on a single message. Do not cancel the home service simply because you bought a second SIM. Conversely, do not leave it enabled without understanding its roaming terms.

Internet messaging apps use a data connection, while ordinary SMS follows the telephone line. An app remaining signed in is not proof that the home SIM can receive a new verification text.

Test the setup after arrival

1. With Wi-Fi off briefly, open a simple web page and confirm the Canadian line is selected for data.
2. Make a local call using the Canadian number, within its plan allowance.
3. Send and receive a test text on the line you intend to use.
4. Review the selected line before contacting someone overseas.
5. Check mobile-data usage in phone settings during the trip so unexpected use is caught early.

Restore Wi-Fi when you want to use it. If a test fails, separate the issues: data connectivity, ordinary calls, and SMS delivery may need different fixes. Keep the order details available for support.

Dual-SIM questions

Does turning off home-line data roaming prevent every roaming charge?

No. Calls, texts, voicemail, and carrier-specific roaming features can have separate charging rules. Ask the home carrier about your intended use.

Can both numbers ring at the same time?

It depends on the phone, software, carrier support, and whether a call is already in progress. Check the manufacturer’s guidance if receiving calls on both numbers is important.

Do I need to transfer my home number to the Canadian plan?

No. This setup uses two separate subscriptions. Keep the home account if you need that number, and use the new Canadian number for the purposes you choose.

Settings guidance reviewed October 5, 2026 using the Apple, Google, and Samsung documentation linked above. Roaming prices and availability belong to your home carrier; confirm them directly for your account.