Sometimes when you change SIM settings (like turning your primary line off), FaceTime or iMessage may switch from your phone number to your Apple ID email.
How to fix it
- On your iPhone, go to Settings → Messages → Send & Receive and make sure your phone number is checked.
- For FaceTime, go to Settings → FaceTime and ensure your phone number is checked under “You can be reached by FaceTime at.”
- If your phone number doesn’t appear: re‑enable your primary line temporarily under Settings → Cellular → [Primary SIM] → Turn On This Line, wait for re‑registration, then turn it off again if needed.
Still not working?
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