Slide 9 of 39
Notes:
The Node Controller, which is only scoped as it relates to something called the Generic Conference Control, provides the T.120 management at a terminal or MCU. That is, the Node Controller issues primitives to the GCC provider that start and control the
The Communications Infrastructure is made up of a Generic Conference Controller (GCC), a Multipoint Communication Service (MCS), and Transport Protocol Profiles.
The Generic Conference Controller (t.124) (GCC) is a set of services for setting up and managing the multipoint conference. The GCC handles access control, application enrollment, arbitration of capabilities, peer to peer information exchange, and a reg
The Multipoint Conferencing Service (T.122/T.125) collects point-to-point sessions to form a multipoint domain. Multiple domains can exist and are, in effect, independent conferences. Nodes can participate in multiple domains. The MCS supports "ordina
The Transport Protocol support includes ISDN, CSDN, PSDN, PSTN, B-ISDN, and LAN.
The Protocol Stacks recommendation (T.123) describes how existing link layer protocols appropriate to each network are selected and then mapped into a common interface layer, thus defining a transport profile for a given network.
Multipoint Still Image and Annotation (MSIA) (T.126) supports interoperable graphical information exchange across vendor equipment. It supports things like whiteboard and screen sharing workspaces with bitmap, pointer, and parametric drawing primitives
Multipoint Binary File Transfer (MBFT) (T.127) provides a basic general purpose file transfer capability. MBFT, if implemented, must simply provide the ability to broadcast one file at a time to all applications supporting MBTF. Optional T.127 features
