Email may be the predominant form of communication in business, but it’s not the only medium. Moreover, it’s not used for the most important moments. Face-to-face meetings or live phone calls are required for urgent problems or significant planning issues. Live communication is personal and direct. No matter how commonplace email has become, we still have to be humans from time to time. Conference calling will always be popular because, while more informal methods like email can get convoluted, more formal meetings are problematic logistically and otherwise inconvenient or invasive for most people. From underlings to CEOs, conference calls drive exchanges outside the company.