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AT&Dn
This command selects whether to ignore the ER signal from
the personal computer.
* This command is written in non-volatile memory by &W.
&D0
Ignores ER signal.
&D1
The modem changes from online state to command
state when ER signal is set from on to off.
&D2
A line is disconnected when ER signal is set from on
to off. At that time, automatic incoming is also
inhibited. The automatic incoming is enabled when
ER signal is set to on again.
&D3
The modem is put into the same initial state as
during the power-on sequence when ER signal is set
from on to off.
Factory setting value:
AT&F
This command reads the contents of ROM in a setting
register. As a result, the modem is put into the factory
setting state.
&F
The modem is put into the factory setting state.
Related parameters: Zn, &W
36
&D2
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