Blocking calls where the caller’s number is intentionally hidden, often displayed as “Restricted,” “Private,” or “Unknown,” is a common need for many smartphone users. These calls can range from telemarketers circumventing regulations to individuals attempting to contact others anonymously. The result is often unwanted solicitations or potential harassment.
The ability to prevent these calls offers a degree of control over incoming communications, reducing interruptions and potentially safeguarding individuals from unwanted contact. Historically, dealing with such calls required third-party apps or specialized services from mobile carriers. Now, many Android devices offer built-in features or readily available app solutions to address this concern.