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why are telephone numbers stored to a phone or to a SIM card or to the Cloud?

by Samara Jerde DDS Published 1 year ago Updated 8 months ago
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Should you save numbers to phone or SIM?

The benefit of saving directly to the SIM is that you can take out your SIM and pop it into a new phone and you'll instantly have your contacts with you. The downside is that all contacts are stored locally on the SIM and not backed-up. This means if you lose or damage your phone or SIM, the contacts will be lost.

Are phone numbers linked to SIM card?

Your mobile telephone number is connected to your SIM card, a small microchip that is inserted into your phone to store data and allow the phone to function. If you desire to change your telephone number, one way to do it is to purchase a new SIM card.

What is stored on a SIM card?

Data that SIM cards contain include user identity, location and phone number, network authorization data, personal security keys, contact lists and stored text messages. SIM cards allow a mobile user to use this data and the features that come with them.

Can I keep my old number with a new SIM card?

This is called porting your mobile number. To keep your mobile number and transfer it to another network, you need to request what's called a Porting Authorisation Code (PAC) from your old provider and then let your new provider know the code. They will then schedule the switch.Aug 20, 2021

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