Ключевые слова: 911, accident, aid, answer, assist, assistance, business, call, care, casualty, center, closeup, communicate, communication, concept, conceptual, connection, contact, conversation, device, emergency, fire, first, global, hand, health, help, holding, landline, line, man, medical, network, number, offer, operator, phone, police, receiver, reception, red, rescue, safety, service, sos, support, telephone, urgency, vintage, warning,