GUNet - GRNet Real-time services - activities November 2000 Dimitris Daskopoulos Aristotle University of Thessaloniki

National Organization Framework Greek National Research Network - GRNet 56 academic and research institutions Greek Universities Network - GUNet 32 academic institutions

Task Forces and Services Task forces for pilot deployment of real-time services: VoIP - VoATM H.323 conferencing (MCU enabled) H.320 gateways national dial-plan support streaming

VoIP - VoATM 7 universities throughout Greece VoIP - RadVision-L2W-323 Gateways VoATM – CE - structured mode preparing for Jan. 2001

H.323 conferencing (MCU enabled) Goal: easy access to multi-point conferences for end-users hardware/software MCUs Cisco 3510, Enzenia, MeetingPoint/NT interoperability tests for H T.120 Intel, VCON, PictureTel, NMeeting, CuSeeMe docs for users/administrators of H.323 systems MegaConference 2 - participating MCU Problems: no MCU scheduling solution, limited accounting options, charging schema

H.320 gateways Goal: provide access to legacy systems hardware gateway Cisco 3525 few tests with H.320 clients (PictureTel 200, IntelProShare) VoIP interoperability tests with CISCO-MCM and RADVision gatekeepers

Dial-plan support Goal: integration of existing sparse VoIP services into a unified national dial-plan Tests with Cisco-MCM gatekeeper ViDeNet participation Problems: central directory gatekeeper difficulties w/ RADVision gateways no ability for dial-string manipulation

Streaming Goal: cover important events in the academic community and archive material for on-demand viewing Streaming technologies Real-Bitcasting, IP/TV, MBONE Problems: advertising events to the end user streaming live from the site archiving and metadata