Today, it is generally recognized that most schools will never need to transmit more than four simultaneous video channels, and the majority of sites will only require one channel. Outbound video-550 MHz is a minimum requirement, and many users want 750 MHz. The actual number of channels to be delivered outbound upon system turn-up varies depending on available funds but is rarely less than 40 channels. The bottom line is that users want as many channels and as much usable bandwidth as possible for broadcast-only service, interactive videoconferencing and media retrieval. Fax-Any capability of the network that reduces the end user's existing cost helps pay for the network.
Most users expect the network to provide the capability for fax service between sites.
This capability is relatively simple and inexpensive to implement, and in fact, was provided as part of the functionality of the TEEN Network. This is the must-have service. For many educators it is more important than the video service. The 10 MB Ethernet capability can be used for administrative functions, such as attendance, payroll, record keeping, etc. Schools see this as a means to centralize their data processing functions and to reduce MIS expenditures.