Ключевые слова: 11, 112, 911, accident, aid, alarm, ambulance, assistance, background, call, cellphone, center, clinic, communication, crime, department, dialing, emergency, fire, first, hand, help, holding, hotline, line, medical, number, office, paramedic, phone, police, rescue, safety, screen, service, signal, sos, support, telephone, urgency, work,