ST. LOUIS -- July 8, 2009 -- Amdocs (NYSE: DOX), the leading provider of customer experience systems, today announced that it has been selected by T-Mobile UK for a four-year managed services agreement. Under the agreement, Amdocs will manage the ongoing development, maintenance and support of T-Mobile UK's billing, customer care and ordering systems for its 16.7 million subscribers. Amdocs will also modernize T-Mobile UK's ordering system. For more information click here.