User`s manual

U.S. Robotics I-modem Command Reference
Modes of Operation • Page 2-5
F1 Online echo OFF. (Sometimes called full duplex.)
Data and Fax Modes
Once you have started in Command mode, you can initialize the I-modem in Data or Fax
mode.
Data mode. In Data mode, the I-modem is prepared to make calls to and receive calls
from digital and analog devices, such as terminal adapters
and modems.
Fax mode. In Fax mode, the I-modem is prepared to make calls to and receive calls from
analog facsimile devices, such as fax modems and fax machines.
Fax operations require facsimile-compatible communications software that can send or
receive Group III faxes. Follow the instructions in your fax software manual.
The I-modemÕs normal operating mode is Data mode. If your fax software is typical, it
automatically switches the device to Fax mode when you run the program, and resets the
device to Data mode when you exit the program.