TeleCommunication Systems, Inc. engages in the development and application of wireless data communications technology solutions in the United States and internationally. It focuses on location-based services, such as enhanced 9-1-1 (E9-1-1) for wireless carriers and voice over Internet protocol (VoIP) service providers. The company operates through two segments, Commercial and Government. The Commercial segment offers products and services that enable wireless carriers to deliver short text messages, location information, Internet content, and other enhanced communication services to and from wireless phones. This segment also provides E9-1-1 services, commercial location-based services, inter-carrier text message distribution services, and carrier technology on a hosted or service bureau basis. It also offers Rand McNally Traffic, a wireless application on a subscription basis. As of December 31, 2006, the company provided hosted services under contracts with 41 wireless carrier networks and VoIP service providers. The Government segment provides communication systems integration, information technology services, and software solutions to the U.S. Department of Defense and other government customers. It also owns and operates satellite teleport facilities; resells access to satellite airtime; and designs, furnishes, installs, and operates data network communication systems, including its SwiftLink deployable communication systems that are used for security, defense, and law enforcement purposes. The company has strategic partnerships with Motorola, Inc. and Alcatel-Lucent. TeleCommunication Systems was founded in 1987 and is headquartered in Annapolis, Maryland.