Many factors affect application performance.
This note not applicable to Network Station systems. Actual playback speed will vary and is often less than the maximum possible. V.90 modems are designed to be capable of receiving at up to 56kbps with compatible phone line and server equipment, and transmitting at up to 31.2 kbps. K56 Flex modems are designed to be capable of receiving data at up to 56Kbps from a K56 Flex compatible service provider, and transmitting data at up to 28.8Kbps. Public networks currently limit download speeds to about 53kbps.