This configuration allows each HealthLink site to connect to every other HealthLink site without running separate, and expensive, T-1 circuits to each site. This design also allows the HealthLink sites to participate in multipoint conferences, events that involve more than two sites at the same time. I know other organizations that use less expensive technology. It is true there are many different types of videoconferencing systems and ways to connect. Large urban centers usually have the most options available to them.
Rural areas have limited options.
You may have seen PC-based or other smaller videoconferencing systems demonstrated. WNC HealthLink is designed to achieve the highest quality real-time interactive videoconferencing available based on telecommunications options consistently available to all sites in the region. The type of equipment and amount of bandwidth needed for interactive video depends on the needs of the users. Unlike T-1 service based on a flat monthly rate, ISDN cost is based on a monthly fee plus usage charges. They initiate and receive all communication involving setting up and supporting an interactive session.