NEW YORK -- Optibase Ltd. (Nasdaq:OBAS), a leader in broadband streaming solutions, today announced that it has successfully completed field trials of its MGW 3100 video-over-IP gateway for the delivery of video over commercial terrestrial networks. The trials were conducted with Nortel Networks* and Tiscali International Network to address the increasing market needs for high definition real-time video contribution services over DWDM MAN and MPLS-IP WAN infrastructures. France Television provided feedback on the video quality of the broadcast that involved Optibase's MediaGateway, Nortel Networks supplied metropolitan optical and data networking equipment, Tiscali International provided the MAN/WAN infrastructure and the measurement tools were contributed by Tektronix. Utilizing Optibase's MGW 3100 MPEG-2 DVB to MPEG-2 IP gateway as a transmitter and receiver deployed at the edge, the trials demonstrated how a bridge between digital video and high speed networks can create new opportunities for broadcasters utilizing a singular multi purpose unified network. The compressed video stream was transported across a DWDM network based on Nortel Networks' OPTera Metro 5200 Multiservice Platforms using Gigabit Ethernet interfaces. "We are enthusiastic about the positive results obtained from the trials. The trials demonstrated the potential which packet-based networks hold for the broadcasting industry," said Jay Plawner vice president Marketing of Optibase. "The trials also proved that by utilizing Optibase's MediaGateway, live video and audio based transmission solutions can easily be deployed by service providers." Optibase Ltd. Nortel Networks Corp. Tiscali SpA