Translated by Google:
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My mobile phone number won't connect to iMessage and FaceTime.
"To use the number *** in iMessage and FaceTime, you need a SIM card linked to an Apple device," this message appears in Settings.
iMessage and FaceTime aren't connecting. The carrier is sending a request to Apple to resolve the issue.
How can I resolve this?
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Has your iPhone been set up with the SIM card inserted?
You can contact the official Apple Support in your country and ask them to look into that, in case the phone number has to be activated on their side for iMessage and FaceTime.
If you can’t turn on or sign in to iMessage or FaceTime on your iPhone - Apple Support
Contact Apple Support - Apple Support
But, some Apple Services might not be supported for all regions/countries at this time, due to local regulations.