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Chapter 1 - Introduction
1-5
Microphone jack is provided to increase the quality of voice recordings
Speaker jack lets you plug in an external speaker for clearer output of
recorded messages.
2, 3, 3-bit new and 4-bit ADPCM for high quality voice digitization with
speech compression at 19.2Kbps, 28.8Kbps, 30.7Kbps, and 38.4Kbps
Simultaneous DTMF, dial-tone, answer tone and fax/data calling tone
detection
Voice AT+V (IS-101) command set
Technical Specifications
Operating mode: auto-dial/answer
Flow control: software XON/XOFF or hardware CTS/RTS
Data/Voice toggle switch
Configuration settings: software programmable with nonvolatile memory for
phone number/profile storage
Diagnostics: self test, analog loopback (with self test), digital loopback, and
remote digital loopback (with self test)
Dialing type: tone/pulse dialing
Line interface: RJ-11 2-wire dial-up or leased line
Call progress monitoring: dial tone, busy, and ring back detection
Audio Monitor: programmable volume control