No Mobile Phones Sign - Prohibition Symbol for Phone-Free Zones #3756863 (License: Personal Use)

The image displays a standard prohibition symbol: a bold red circle with a diagonal red slash overlaid on a black silhouette of a classic mobile phone with a physical keypad and antenna. The high-contrast design ensures immediate recognition across languages and cultures, making it ideal for public signage in sensitive or quiet environments. Its simplicity follows ISO safety signage conventions for prohibitions.

Commonly used in hospitals, theaters, exam halls, government buildings, and religious sites where silence or security is required; matches user intent for finding signage assets, policy documentation, or safety compliance materials.