iPhone 12 is making calls itself, NO LOGS IN RECENT CALLS

What Call? On an iPhone, you can make and receive various types of calls. Here are the different types:

1. These are standard voice calls made over the cellular network. They utilize your carrier's voice network to connect you with other phone numbers. Allow phone calls on your iPad, iPod touch, and Mac
2. FaceTime Audio allows you to make voice calls over Wi-Fi or cellular data using your internet connection. It provides higher audio quality compared to traditional cellular calls.
3. FaceTime Video enables you to have video calls with other FaceTime users. It uses the front or rear camera on your iPhone to transmit live video during the call. Use FaceTime with your iPhone or iPad - Apple Support (IN)
4. VoIP (Voice over Internet Protocol) calls use internet connectivity to make phone calls. Apps like Skype, WhatsApp, Viber, and Google Hangouts utilize this technology, allowing you to make voice and video calls over the Internet.
5. Some carriers support Wi-Fi calling, which allows you to make and receive calls over a Wi-Fi network instead of relying solely on cellular coverage. This can be useful in areas with weak cellular reception. Make a call with Wi-Fi Calling - Apple Support (IN)
6. The App Store offers numerous calling apps that utilize different technologies. These apps can provide additional features and options for making calls, such as international calling, call recording, and more.

It's important to note that the availability of certain call types may depend on your iPhone model, iOS version, and carrier.

It is possible to spoof a number. Spam callers do it all the time. The number appears as one number but it's really coming from another number. Or, there is some bizarre glitch in your carrier's system. Or, the people who are reporting this to you are mistaken or having a joke. Is it more than one person? If it's just one person, perhaps they've put someone else's number in your contact entry.

If your callers are tapping on the entry in their Recents that appears to come from you, that might well be what would happen. I'd suggest you let people who are likely to call you that this has been happening and they should return any calls to you either by typing in your number or accessing it from their contacts list.

FYI, on an iPhone, anyway, if you had blocked them, they would not get a busy signal. Generally, the call will go to voicemail, where they can leave a voicemail that will get diverted to your "Deleted" folder in Voicemail, and for which you will not get a notification.

You should also contact your carrier and let them know this is happening.

Yes I did, when raise to wake was on, hitting the side of the pockets, the iPhone was turning on doing whatever possible to annoy me :)

Do the calls show on your cellular bill? If they do not, they are not coming from your phone/account.