How to use or manage dual SIM cards
Depending on your smartphone it will either come with a dual SIM or a single SIM tray. Dual SIM models allow you to use two SIM cards in one device. This is handy if you have separate phone numbers for work and home or if you would like to use a local number while keeping your original number active when in a foreign country.
Types of SIM card
Dual SIM card trays feature 2 SIM card slots, where a hybrid SIM tray features 1 SIM card slot and a hybrid slot. A hybrid slot can take either a second SIM card or a microSD card for expandable memory, giving you the flexibility to choose between a second SIM card or extra storage.
You can check by removing the SIM card tray and seeing how many slots it has and how the second slot is labeled, if it says SIM2 it's a dual SIM, if it says SIM2 microSD it's a hybrid.
Enable a second SIM card
You can have two numbers without carrying two phones. A Dual SIM card allows you to manage your personal and business calls within the same phone so you don’t need to keep carrying two phones or switch between SIM cards.
1. Go to Settings > Connections > SIM card manager.
2. Tap the SIM card that you would like to enable.
3. Tap the switch to activate the SIM card.
4. Tap Name, enter the name that you would like to give that SIM card, then tap Done
Switch between SIM cards
Once you have enabled both SIM cards, you can set up your preferred SIM card for calls, text messages, and mobile data.
Go to Settings > Connections > SIM card manager.
Choose your preferred SIM card for calls, text messages, and mobile data.
You can also set up call confirmation or Dual SIM always on.
When making a call choose which SIM to use by selecting one of the call buttons.
When Sending an SMS choose which SIM to use by selecting one of the send message buttons.
Note: Available settings and screens may vary by wireless service provider, software version, and device.
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