Hayes 56K OPTIMA Business Modems raise the standard for "Business Class" modems. OPTIMA combines high performance, reliability, and advanced business features for a single, quality solution that satisfies the demanding needs of today's business communications. Using the fastest standard and the superior implementation of data compression, OPTIMA Business Modems send more data in less time. Send more data in less time - over a megabyte a minute with throughputs up to 230, 400 bit/s. Security features eliminate the threat of unauthorized access to sensitive data. Professional quality messaging system provides Voice Mail and FAX-On-Demand.