Call simple icons - Stock vector

call, phone, voice, talk, say, communication, conversation, discussion, speech, feedback, contact, information, exchange, conference, helpdesk, assistant, technology, device, microphone, speaker, wire, electronic, icons, simple, flat, plain, set, buttons, design, template, theme, user-interface, frames, outlines, rounded, squares, rounded-square, curved, vaulted, bent, vector, colors, brown, blue, red, green, orange, yellow, purple, gray