ASPEN TECHNOLOGIES, INC.
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   PCMCIA FAX/MODEM 14.4

   Modem Type             Data (synchronous/asynchronous)/Fax     
   Maximum Data Rate      14.48Kbps                               
   Maximum Fax Rate       14.4Kbps                                
   Data Bus               PCMCIA type II                          
   Fax Class              Class I & II                            
   Data Modulation        Bell 103A/212A                          
   Protocol                                                       
                          ITU-T V.21, V.22, V.22bis, V.23, V.32,  
                          V.32bis                                 
   Fax Modulation         ITU-T V.17, V.21CH2, V.27ter, V.29      
   Protocol               
   Error                  MNP5, V.42, V.42bis                     
   Correction/Compression 

                                                            V1539

                     Proprietary AT Command Set