Ключевые слова: 911, accident, aid, alarm, alert, alert message, ambulance, assistance, attention, call, cell, communication, concept, contact, crisis, critical, danger, dial, disaster, distress, emergency, emergency assistance, emergency hotline, fast, help, helpdesk, hotline, icon, immediate, mobile, notification, phone, police, quick, rapid, red, rescue, response, safety, sign, smartphone, support, symbol, technology, urgency, urgent, urgent call, urgent situation, warning,