Conexant HCFL/56 PC Card Device Sets support high-speed analog data up to 56 kbps, 14.4 kbps fax, voice/TAM, analog cellular direct connect, and speakerphone (optional) operation (Table 1). The modem supports ITU-T V.90/K56flex, V.34 and V.32bis data modulations and is designed to operate with dial-up telephone lines in the U.S. and worldwide. Low profile, small PQFP/TQFP packages and low voltage operation with low power consumption make this device set ideal for laptop, notebook, and palmtop applications.

FEATUREs
• Data modem
   − ITU-T V.90 and K56flex, V.34 (33.6 kbps), V.32 bis, V.32, V.22 bis, V.22, V.23, and V.21; Bell 212A and 103
   − V.42 LAPM and MNP 2-4 error correction and MNP 10 error correction
   − V.42 bis and MNP 5 data compression
   − V.250 (ex V.25 ter) and V.251 (ex V.25 ter Annex A) commands
   − Fax modem send and receive rates up to 14.4 kbps, ITU-T V.17, V.29, V.27 ter, and V.21 channel 2
   − EIA/TIA 578 Class 1 and T.31 Class 1.0 commands
   − MNP 10EC™ enhanced cellular performance
• Analog cellular direct connect
• V.80 synchronous access mode supports host-based communication protocols
   − H.324 interface support
• World-class operation
   − Call progress
   − Blacklisting
   − Multiple country support
• Voice, telephony, TAM
   − V.253 commands
   − 8-bit µ-Law/A-Law coding (G.711)
   − 8-bit/16-bit linear coding
   − 8000/7200 Hz sample rate
   − Music on hold from host or analog hardware input
   − TAM support with concurrent DTMF detect, ring detect, and caller ID
   − Handset support (S models)
• Signal Processing Option
   − Hardware-based for minimal host loading.