Re: "Not receiving calls in my house"
Apple support have an article online that may be helpful:
If you can't make or receive calls on your iPhone - Apple Support
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Else you may want to check some settings:
Eg: Check you do not accidentally have "Silent mode" on:
Select ringtones and vibrations on iPhone - Apple Support
Also: check "Mute" is not on and the volume is not set too low to hear
How to: Change iPhone sounds and vibrations - Apple Support
You could try turning off "Low Power" mode if you have it turned on.
Use Low Power Mode to save battery life on your iPhone or iPad - Apple Support
Check that "Do Not Disturb" is off:
Eg: Try Settings > Focus > Do Not Disturb > Then tap the amount of time that is set to turn it off.
If your iPhone still isn’t working as expected, you can try restarting it by turning it off, then turning it back on:
Turn iPhone on or off - Apple Support
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More support if needed:
You might want to reach out to the iPhone Support Team:
There's a "Get Support" link (online chat, phone, eMail etc.)at the bottom of their website (link below):
iPhone - Official Apple Support