Arbinet-thexchange, Inc., a provider of solutions for the exchange of digital communications, has acquired Flowphonics, Ltd. Terms of the transaction were not disclosed. Flowphonics offers a license management platform for intellectual property rights and digital content distribution through its patented Rightsrouter system. It is designed to enable music and video rights owners to locate, transact, distribute, and manage their content with major online and mobile retail services including iTunes, Rhapsody, Napster, and Beatport. The Rightsrouter solution provides rights holders (licensors), and retailers (licensees), an electronic marketplace to meet and transact with the capability to administer and negotiate rights agreements, encode and distribute content, report, bill, and clear all licensing transactions.