No Mobile Phones Allowed Sign - Clear Prohibition Symbol for Public Spaces #220105 (License: Personal Use)

The image displays a high-contrast prohibition sign featuring a black silhouette of an older-style mobile phone (with physical keypad and antenna) overlaid by a bold red circle and diagonal slash. This visual cue is widely used in environments requiring silence, security, or undivided attention-such as libraries, exam halls, theaters, hospitals, and government facilities. Its design follows ISO 7010 safety signage conventions for immediate recognition.

Used on signage in public, educational, medical, and corporate settings to enforce phone-free policies; matches user intent seeking regulatory or instructional visuals for compliance, wayfinding, or policy documentation.