How to use Dual SIM with your Apple Watch.

How to Setup eSIM and Dual SIM on your Apple iPhone.

Which brings us to a problem: what if you’ve forgotten your SIM PIN? Of course, if you already have one set up, you’ll need to input it before you set a new one. Sending an email to yourself or using Notes on iCloud are both good options.

Make sure you write this SIM PIN down somewhere safe that you can easily access. If you’re interested, you can set up a SIM PIN by going to Settings > Cellular > SIM PIN. It can prevent people from just popping out your SIM card, placing it into a device that they have on hand, and using your cellular line to make calls and texts. That can come in handy if your iPhone is stolen. Whenever you restart your device or pop your SIM card out and place it in a new device, you’ll need to input the SIM PIN to access cellular functionality. What is a SIM PIN?Įssentially, the SIM PIN - added as an additional feature in iOS 12 - is a security code that you can “lock” your SIM card with. With that in mind, there’s actually a security feature in recent versions of iOS that you may run into problems with. But physical SIM cards are still removable. These days, new iPhones will already have a SIM card in them that is activated remotely. Normally, you may not give your SIM card much thought. To oversimplify a bit, it’s how your device connects to your cellular service. Check with your carrier for availability and to find out whether additional fees apply.Every cellular device - iPhones included - has a SIM card. To avoid missing an important call, you can turn on call forwarding and forward all calls from one number to the other. Call Waiting works for incoming calls on the same phone number.

4 However, you won't get a missed-call notification from your secondary number. When you're on a call, an incoming call on your other phone number will go to voicemail if you set up voicemail with your carrier. 3 It could also mean Allow Cellular Data Switching is not turned on. If you're on a call and your other line shows No Service, either your carrier doesn't support Wi-Fi calling or you don't have Wi-Fi calling turned on. Check with your carrier for Wi-Fi calling availability and find out whether additional fees or data usage applies from your data provider.

If you ignore the call and you have voicemail set up with your carrier, you’ll get a missed-call notification and the call will go to voicemail. When you're on a call using a line that isn't your designated line for cellular data, you need to turn on Allow Cellular Data Switching to receive calls from your other line. When you're on a call, if the carrier for your other phone number supports Wi-Fi calling, you can answer incoming calls on your other number.

You can make and receive phone calls with either phone number.

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