T-Mobile USA Inc. last week agreed to pay a fine of $1.1 million for failing to deploy wireless enhanced 911 services on its GSM network in a manner consistent with a waiver it received in 2000. The consent decree wraps up the outstanding issues regarding the use of enhanced observed time difference (EOTD) technology for E911. EOTD is a hybrid network/handset-based technology for GSM systems that never met the location benchmarks in the Federal Communications Commissions rules. In addition to agreeing to the fine, T-Mobile agreed to a schedule that allows it nearly two years to deploy network-based technology to those public-safety answering points that have requested the service. If it misses these deadlines it could face millions of dollars in additional fines.