Argo Interactive, Ltd. specializes in user experience optimization for mobile services. Its products include Monitor Master, which simulates real users doing real things on real devices and reports back the results; Device Master, which is a handset profiling centre and knowledge base for operators and device manufacturers; and QXP, which is used as a metric for mobile data services. The company offers application assurance solutions, such as mobile content validation, performance testing, and third party developer testing for operators, application developers, content owners, and aggregators; handset validation solutions for mobile operators and device manufacturers; and service monitoring solutions, including real-time and end-to-end monitoring of services. Argo Interactive has a strategic partnership with Mobile Research Corp. It serves mobile operators and handset manufacturers. The company was founded in 1996 and is headquartered in Elstead, the United Kingdom. As of March 10, 2008, Argo Interactive Ltd. operates as a subsidiary of Ascom Holding AG (SWX:ASCN).