Ключевые слова: agile business, answerphone, business, business call, business communication, businessman, call, call back, calling, cell phone, cellphone, communicate, communication, conversation, device, happy, hello, man, mobile, mobile device, mobile phone, mobile technology, modern communication, negotiation, phone, phone answer, phone call, reply, secretary, smartphone, speak, speaking, talk, talking, telephone call, telephony, voice, voice email, voice mail, working,