SIP Visual Emergency Intercom is specially used for outdoor emergency telephone, pick the machine can automatically call the emergency phone line. Commonly used in mines, tunnels, scenic spots, school and other unexpected events may occur.
Communication plays a vital role in both personal and professional settings. However, adverse weather conditions can often disrupt communication channels,...
Introduction Technological advancements have revolutionized the way we communicate. Landline phones, once a cornerstone of communication, have taken a backseat...