| SF-1156V/R21 | 
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      Chipset: 
        Rockwell ACFII RC56D 
         
        MAIN FEATURES: 
        
          - Data/Fax/Voice/FDSP
          
 - 56K bps K56flex / V.90
          
 - Support Win95 and DOS modes.(OS independent)
          
 - EEPROM support 2 profiles and 4 telephone number sets.
 
         
        INTERFACE: RS-232 
         
        Phone Jacks: Modular line connector, 
        two RJ11C phone jacks. 
         
        VOICE FUNCTION: 
        
          - ADPCM (Adaptive Differential Pulse Code Modulation) voice 
            coding/decoding.
          
 - DTMF tone detection/generation.
          
 - Sampling rate 7200 bps.
          
 - Embedded voice mode AT command set.
 
             
           
         
        SPEAKERPHONE FUNCTION: 
        
          - Full-duplex speakerphone (FDSP) or handset.
          
 - Room monitor.
          
 - programmable dual/single tone transmitter.
 
             
           
         
        FAX FUNCTION:EIA 578 CLASS 1 
        COMPATIBLE 
         
        MODEM FUNCTION: 
        -DATA SPEED: 56000 (Down-Stream) /33600/31200/28800/26400/24000/21600 
        /19200/16800/14400/9600/4800/ 2400/1200/300 bps and 1200/75 bps. 
        -DATA LENGTH: 10 bits, including start, stop, parity. 
        -ERROR CORRECTION: V.42 AND MNP 2, 3, 4. 
        -DATA COMPRESSION: V.42bis AND MNP 5. 
        -ENHANCED "AT" COMMAND SET. 
        -DTE TO MODEM DATA RATE: 
        Up to 300,1200,2400,4800,9600,14400,19200, 28800,38400,57600, 115200 
        bps. 
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