Turn on Do Not Disturb or Focus mode
Enable call forwarding to voicemail if your carrier supports it
Silence unknown callers
Block the contact or number
Set a custom ringtone to silent for specific contacts
Use airplane mode when you do not want to receive calls
Turn off cellular service temporarily
Ask your carrier about voicemail-only or call screening settings
Use third-party call-blocking features if available on your device
Disable notifications for phone calls if you only want voicemail access