<p>Internet service provider EarthLink Inc. said Monday it will begin selling its own brand of cell phone service on BlackBerry e-mail devices.</p><p>EarthLink said it plans to debut its first product this spring with a complete bundle of applications on a handheld device including e-mail, voice calling and Internet browsing.</p><p>EarthLink's new service will allow the user to access data from a calendar or address book while on a voice call. The company will announce cost and service plans for the EarthLink Wireless Email and Voice this spring.</p><p>USA Today has reported that the voice service will cost $40 to $75 a month.</p><p>Shares of EarthLink closed Friday at $8.65, down 9 cents, or 1 percent.</p>
