The new high speed modem protocols are much more sensitive to line noise or static. However, the modems have the capability of 'retraining' or dynamically re-negotiating a slower link speed to adjust for line noise. When retraining happens, the dialup session stops sending or receiving data for a few seconds. Some of the more advanced modems have an LED indicator which shows when a modem is retraining. One alternative is to lower the speed at which your modem connects.
Slower speeds are less sensitive to line noise.
The new modems use ISDN Primary Rate Interface circuits, each consisting of 23 B channels capable of 64 Kbps. This file contains the HTML code for the footer information to be included on every page. Each html page in the site calls this document via the JavaScript SRC parameter. However, it is the responsibility of the user to determine that he or she is relying on the most current version of any particular information.