C - AT Command Set
For a modem which uses the standard AT commands shown
above, the Initial String would look like the following:
AT&F&B1&K3&C1&D2&S0X4
The first command (AT&F) sets the modem to the factory
defaults, to ensure a consistent starting point.
This command string (AT&F) is also the default value. It will
work if the modem's factory defaults match the required
settings.
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