The Telephone System
The last protocol was designed to deal with a excessive quality of service concern. Some data transfers similar to real time video and voice feeds can tolerate small losses of information, however not transmission delays. It is possible to tolerate delays within the transfer of information, but not lose information. The kind of service supplied to a user is in keeping with needs. Real time video and voice visitors may be guaranteed with the ATM protocol. A digital sign could be despatched at a knowledge fee of 64,000 bits per second.