PC telephony

• International telephony support
• Voice compression: ADPCM, linear, and CL1
• 4800,7200, 8000, 9600, and 11025 samples/sec.
• Full-duplex, echo-cancelled digital speakerphone
• Telephone emulation for headset applications
  
• Voice 1S-101 commands
  
• ITU-V.80 for videoconferencing

Power requirements

• 3.3-V DSP
• Automatic sleep and wake-up modes
  
• ACPI (advanced configuration power interface) Packaging
  
• DSP: 100-pin LQFP, SAFE: 44-pin VQFP
• Exceeds Microsoft, PC 98 requirements
• Microsoft, Windows, TAPI-compliant
• Industry-standard AT command-driven
• Mac version is due out in Q3 of 1999

Specification:

• Merges benefits from software and hardware modems
• Uses hosts CPU without degrading performance
  
• Distributes functions optimally between CPU and DSP
  
• Eiminates software modem patent issues
• Cost savings:
• CPU eliminates need for controller chip
  
• Smaller DSP chip uses less silicon
  
• Reduced board size
  
• Competes with software modems
  
• Superior price/performance ratio
  Data modulation:
• Data rates up to 56kbps
  
• ITU-V.90 56K compliant
  
• ITU-T V.34 (33,600 to 2,400kbps)
  
• ITU-T V.32 bis, V.23, V.22 bis, V.21
• Bell, 212A and 103
  
• Error correction: ITU V.42 and MNP^®
• Data compression: ITU V.42 bis and MNP, 5
• Fax modulation
  
• ITU-T V.17, V.29 to 14,400 kbps
  
• Fax Class 1 commands