User`s manual

U.S. Robotics I-modem Command Reference
Modes of Operation • Page 2-3
You can change the characters used to revert to Command mode or change the wait time
by resetting Register S2 or S12. See the S-re
gister Summary in Appendix A, Alphabetic
Command Summary.
Returning to Online Mode
On Changes from Command mode to Online mode.
ATO <Enter>
There are two ways to return online.
O0 Return online.
O1 Return online and retrain. You might use ATO1 to resynchronize if you
experienced errors during a non-ARQ data transfer.
Controlling Local Echo
There are two local echo settings, one for Command mode and one for Online mode. The
Command mode local echo setting determines whether the commands you type appear on