If you think your phone rings off the hook now, just wait until mid-June, when Lane County tests its telephone warning system. As many as 130,000 telephones will ring within minutes of each other as the county pushes the limits of its Community Emergency Notification System, a sort of reverse 911 that calls citizens when there's an emergency, instead of the other way around. In December 1999, Lane County became the first county in the nation to acquire the type of system developed by Intrado of Boulder, Colo. The computer-based system allows emergency dispatchers to ring all the telephones within...