Zypcom Z34-PC, User Manual

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Fax mode
In fax mode, the modem operates at up to 14,400 bps
(transmit and receive), and implements all the data
rates and modulation schemes for standards V.17, V.29,
V.27ter, and V.21 channel 2. The C-Series modems
implement a standard Class 1 fax command set,
compatible with any communication application
software that also supports EIA/TIA-578 Fax Class 1.
However, users never have to use the EIA/TIA-578
commands to control fax operation, since this is the sole
responsibility of the fax software. The EIA/TIA-578
commands are listed in Appendix C. For more
information about Class 1 faxing, please refer to the
SuperVoice User's Guide included with your modem or
use the software's Help functions.
Voice Mode
The C-Series modems support voice mode operation
using IS-101 AT type voice commands. The modem's
voice mode requires IS-101 compatible software for voice
operation. Voice mode allows the user to use the
modem as a digital answer machine, a voice mail
system, and a full-duplex speakerphone. The Z34-SC's
built-in microphone and speaker allow the modem to be
a speakerphone without additional hardware. The
complete set of IS-101 commands are listed in Appendix
B. For the operation of voice applications, please refer
to the SuperVoice User’s Guide.
Full-Duplex
Speaker-phone
Both of the C-Series modems support full-duplex
speakerphone with internal adaptive echo cancellation.
Phone users can talk simultaneously without the
remote user hearing an echo.