Ключевые слова: accident, aid, alarm, alert, ambulance, assistance, button, call, click, communication, concept, control, danger, emergency, equipment, help, icon, medical, panic, phone, press, protection, push, red, rescue, safety, security, service, sign, sos, sos button, stop, support, symbol, technology, telephone, toilet, train, transport, urgency, wall, warning, white,