Ключевые слова: assist, assistant, audio, black, business, call, callcenter, callcentre, communicate, communication, computer, contact, daily, earphone, earpiece, electronic, equipment, head, headgear, headphone, headpiece, headset, helpdesk, helper, helpline, hotline, icon, isolated, mic, microphone, mouthpiece, operator, personal, phone, service, sound, speak, speaker, support, talk, technology, telecommunications, telephone, voice, white, wire, work,