U.S. federal trademark · Serial No. 74335659 · Reg. No. 1900385
open architecture distributed switch for voice, data, video and wireless communications consisting principally of synchronous optical network based fiber optic multiplexors and integrated digital loop carrier remote digital terminals integrated under the control of intelligent networking and network management software executing on off the shelf computer based servers; and computer software for an open architecture distributed switch, for use with any vendor's open architecture computers and communications equipment
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