| 摘要 |
A real-time picture communications system (15) including a picture communications network subsystem (26) provides real-time picture communication services between users (21), devices (22), and/or groups of users, devices, and other groups. Examples of devices include cameras, viewers, keypads, writing tablets, microphones, telephones, and combinations thereof. One or more protocol communications nodes (27) are connected to one or more networks to provide communication between the network and the picture communications network subsystem. A registry database (28) includes user information (86), device information (87) and group information (88). A control subsystem (29) processes requests and executes instructions, such as an attach instruction and instructions that establish real-time communication services responsive to an authenticated request by a user or a device to the extent allowed by the various access rights of any users, devices and groups. |
