No Mobile Phones Sign - Prohibition Symbol for Quiet or Restricted Zones #257195 (License: Personal Use)

The image displays a standard ISO-style prohibition sign: a bold red circle with a diagonal slash overlaying a black silhouette of an older-style mobile phone with a physical keypad and antenna. The high-contrast design ensures visibility and immediate recognition across diverse environments, from hospitals and theaters to laboratories and exam rooms.

This image is commonly used on signage in places requiring quiet, safety, or signal-free zones-such as hospitals, classrooms, airplanes, courtrooms, and scientific facilities. It matches user intent for finding visual guidance on communication restrictions or regulatory compliance materials.