No Mobile Phones Allowed Sign - Prohibition Symbol for Phone Use #1733141 (License: Personal Use)

The image features a classic feature phone overlaid with a bold red prohibition circle and diagonal slash, signaling that mobile phone use is strictly forbidden. The design uses high-contrast colors and simple iconography for immediate recognition across cultures and age groups. It’s commonly used in environments requiring silence, security, or digital detox.

Used on signage in classrooms, exam halls, theaters, hospitals, government buildings, and secure areas to communicate phone restrictions; matches user intent seeking visual compliance aids or downloadable safety graphics.