Access Methods and Standards
Manufacturers and ISVs continue to develop innovative RASs that incorporate additional functionality and features to improve security, management, and performance over slow links. Standard bodies, supported by leading manufacturers and telecommunication vendors have adopted several technologies for remote access, including faster analog dial-up access speeds (28.8–56 Kbps) using V.90 modems over the PSTN network. In addition, basic rate ISDN is a fast data service offered by Telcos—faster than typical analog modems, with top speeds of 128 Kbps—but deployment in the US is slow and expensive and throughput is typically not fast enough for today's multimedia Internet.
Recently, standard bodies, such as ITUT, have ...
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