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The Messages app, integrated with iMessage, is a handy feature allowing users to send texts without worrying about charges, only activation and 3G usage fees. If you no longer use an iPhone, you won't receive messages as before. You need to unregister from using iMessage.
Facetime is also an app that lets you make video calls with friends and family without incurring call charges, only requiring 3G or Wi-Fi, similar to apps like Skype, Zalo, Viber, etc.
Additionally, readers should check out the article on registering for Viettel 3G.
Guide to Unregister Phone Number from iMessage and FaceTime
How to Disable iMessage and FaceTime on iPhone
Disable iMessage
Step 1: Go to Settings on your iPhone
Step 2: Scroll down and select iMessage
Step 3: Here, iMessage is activated. Slide the toggle to Off to turn off iMessage
Disable FaceTime
Step 4: Go back to the Settings of your iPhone and select FaceTime
Step 5: Then, slide the toggle to Off to turn off
How to Unsubscribe from Using iMessage and FaceTime Online, When No Longer Using an iPhone
Step 1: Access this Website and enter your phone number into the Phone Number box, then click Send Code. Wait for Apple to send you a confirmation code.
Step 2: Enter the confirmation code Apple sent you into the Confirmation Code box, then click Submit. If you don't receive the code, click Resend code to have it resent.
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With the instructions provided here, we have assisted readers in disabling and unregistering their phone numbers from iMessage and FaceTime on iPhone to avoid unwarranted charges when no longer needed. Additionally, readers are encouraged to download the Supercut Square Video Editor app.
