With the upcoming Orange Bowl and BCS National Championship college football games around the corner, AT&T plans to place a "cell on wheels" in the parking lot of Dolphin Stadium in Miami.

Increased traffic is expected on iPhones and other devices on AT&T's network at the games. AT&T will have personnel onsite at the stadium to monitor network traffic.

In addition, the carrier plans to add voice channels to its two existing cell sites inside Dolphin Stadium and to ramp up high-speed third-generation (3G) capacity for thousands of calls and data sessions.

According to AT&T, its 3G network is now accessible in 335 major metropolitan areas in the United States.