For Immediate Release
                                                             H-0694+++AT




                    HAYES INTRODUCES INTERNAL 288 V.FC MODEM 
                          WITH HAYES ESP INCORPORATED 


        Atlanta, GA, 20 May 1994 -- Hayes Microcomputer Products, Inc. today 
announced the availability of OPTIMA 288B V.FC + Fax for US$499 and CDN$599.  
Incorporated onto this internal modem card is Hayes ESP Communications 
Accelerator.  The integrated Hayes ESP COM Port Technology is a custom 16-bit 
communications co-processor which allows OPTIMA 288B V.FC to achieve full 
data transmission port speed of  230,400 bit/s in multi-tasking environments 
such as Windows. 

        This internal data + fax modem supports V.Fast Class (V.FC) for  
28,800 bit/s (28.8 bit/s) data transmission; ITU-T V.42bis data compression; 
ITU-T V.42 error-control; and Group 3 fax using V.17 for 14,400 bit/s fax 
transmission.  

        This product is also fully compatible with the installed base of 
V.32bis (14.4 bit/s), V.32 (9600 bit/s) and V.22bis (2400 bit/s) modems.  In 
addition, OPTIMA 288B V.FC will operate at 28,800 bit/s with future Hayes 
products implementing the V.34 (V.Fast) standard once it is approved.  Hayes 
will make an upgrade to V.34 (V.Fast) available at a cost of less than US$100.

        In order to achieve its superior throughput, Hayes OPTIMA 288B V.FC 
supports an enhanced and well optimized implementation of the V.42bis 
standard, as well as a larger dictionary than other modem vendors in order to 
improve performance for a wide range of file types.  Examples of files that 
consistently achieve superior throughput rates include graphics files, text 
files, e-mail message files, database/spread sheet data and other types of 
user generated data.

        It is a common misconception that an internal modem plug-in card 
will not suffer the same throughput and data loss problems as an external 
modem attached to a serial port.  The combination of Hayes high-speed OPTIMA 
technology and Hayes ESP provides reliable high-speed communications for 
users who prefer an internal plug-in modem solution.  With Hayes ESP's 
dedicated co-processor, users benefit from built-in automatic flow control to 
ensure data integrity by eliminating buffer overrun errors experienced with 
even the 16550 UART at speeds of 115.2 bit/s or higher.  The ESP COM Port 
Technology is the only serial architecture to support speeds above 115,200 
bit/s in Windows or network operating system environments.  To maximize the 
PC's performance, Hayes ESP provides dual 1024-byte send/receive buffers and 
a 16-bit PC Bus interface for superior I/O performance.

        OPTIMA 288B V.FC + FAX comes with a two year limited performance 
warranty which is extendable to five years when customers register the 
product within 90 days of purchase (US & Canada only).  OPTIMA 288B V.FC + 
FAX is bundled with Smartcom for Windows LE and Smartcom FAX for Windows 
communications software.


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Hayes, OPTIMA, Smartcom and ESP are trademarks of Hayes Microcomputer 
Products, Inc.  V.FC and V.Fast Class are trademarks of Rockwell 
International Corporation.