The telephone has always been a key part of the salesperson's arsenal. These days, cell phone technology is so advanced that people can use their phones not only to make and receive calls, but to browse on the Internet, send text messages, download music and video, and even take pictures. Chances are the telephone is the lifeblood of your business. Even as the Internet becomes more sophisticated, people will likely depend on voice communications—whether by traditional phone, cell phones, VoIP, or new Webcams and videophones—for years to come.