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COMSPHERE 3800 Series Modems – Model 3830
2-10 August 1998 3830-A2-GB91-30
If these characters are not echoed back to the DTE screen after the
power-up self-test is complete, then the modem is still in Dumb
mode and maintains its current configuration. Turn the modem Off
and then ON again, and repeat Step 1.
2. Once the characters are echoed back to the DTE,
TYPE: T***
(The case of this character must be consistent with the case used in
Step 1. Mixed case prefixes such as aT or At are not recognized.)
This must be entered within 10 seconds after receiving the echoed
characters.
PRESS: Enter
The screen displays OK.
The modem is now in AT Recovery mode, and remains in this state
until a Save or power reset occurs. While in this mode, you can use
AT commands to make any necessary changes to configuration
options.
Keep in mind that the &C command is changed to Forced On
(&C0), the &M and &Q commands are changed to Async mode
with AT commands enabled (&M0 and &Q0), and the &S
command is changed to Forced On (&S0). If these settings are not
appropriate, then reset them to a desired choice before exiting AT
Recovery mode.
3. To save changes, use the &W command:
TYPE: AT&Wn
Where: n is one of the following storage areas:
0 for Active (Saved)
1 for Customer 1
2 for Customer 2
PRESS: Enter
The modem exits AT Recovery mode and returns to its previous
application environment.