Issue Description
Incoming calls go straight to voicemail or never arrive.
Common Causes
Do Not Disturb enabled
Carrier issues
Network problems
Step-by-Step Solution
Step 1: Disable Focus / Do Not Disturb
Settings → Focus
Turn OFF all focus modes
Step 2: Check Call Blocking
Settings → Phone → Blocked Contacts
Step 3: Restart iPhone
Refreshes network connection
Step 4: Reset Network Settings
Fixes carrier signal issues
Explore Further
Contact carrier if calls still fail
Prevention & Best Practices
Check Focus modes regularly.