Blocking calls helps you avoid being disturbed by unwanted contacts.
Follow these instructions to block calls on Samsung Galaxy J7 Plus:
Step 1: Access 'Phone'.

Access the 'Phone'.
Step 2: Select '...' and choose 'Settings'.

Choose '...' and select 'Settings'.
Step 3: Choose 'Block numbers'.

Choose 'Block numbers'.
Step 4: Block numbers from: Unknown callers, enter number, contacts.

Block numbers from: Unknown callers, enter number, contacts.
Now you can avoid the hassle of unwanted calls. Best of luck!
