This system is available in most NFL stadiums:

Fans still are urged to complain to an usher or call a security hotline in the stadium to report unruly behavior. But text-messaging lines — typically advertised on stadium scoreboards and on signs where fans gather — are aimed at allowing tipsters to surreptitiously alert security personnel via cellphone without getting involved with rowdies or missing part of a game.

As of this week, 29 of the NFL’s 32 teams had installed a text-message line or telephone hotline. Three clubs have neither: the New Orleans Saints, St. Louis Rams and Tennessee Titans. Ahlerich says he will “strongly urge” all clubs to have text lines in place for the 2009 season. A text line will be available at the Super Bowl for the first time when this season’s championship game is played at Tampa’s Raymond James Stadium on Feb. 1.

“If there’s someone around you that’s just really ruining your day, now you don’t have to sit there in silence,” says Jeffrey Miller, the NFL’s director of strategic security. “You can do this. It’s very easy. It’s quick. And you get an immediate response.”