Device Guides
Apple iPhone 13 Pro Max
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iOS is the operating system software installed on your iPhone. To find out which version you have: Tap Settings, Tap General, Tap About, and view the version number.
How to
Set up your mobile phone for SMS
An SMS is a text message which can be sent to other mobile phones. You mobile phone can send and receive SMS as soon as you've inserted your SIM. If this isn't the case, you can set up your mobile phone for SMS manually.
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Setting up my mobile phone for SMS
When you insert your SIM into your mobile phone, it's automatically set up for SMS.