3Com REMOTE ACCESS SYSTEM 1500, Management Manual

Page: 149 / 300

Working with Modem Memory
147
Working with
Modem Memory
Modems inside an RAS 1500 module have a user-configurable memory
type known as Flash memory. You can store, retrieve, and change settings
in Flash. Each modem also uses Random Access Memory (RAM) to store
current settings, however modem configurations stored in RAM are lost
as soon as the modem is power cycled or turned off. Since this
information is saved in the modem Flash, a loss of power does not affect
your settings.
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Viewing Modem Settings in Memory
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Storing Settings in Flash Memory
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Saving a Phone Number to Flash Memory
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Working with the Flash Memory Template
Viewing Settings When you issue an AT configuration command, the modem stores the
command RAM as a current setting. Any setting(s) that you change and
do not save to the modem are active until you reset or power off a
modem.
Storing Settings in Flash Memory
Save modem settings to Flash memory by adding the &W to the end of
the AT command. This changes the default setting for that modem after
the current call is completed. The following table shows how to use the
&W command to save S-Register values to Flash memory.
Any other setting changed, that can be saved to Flash memory, is also
saved when you issue the &W command.
View Command
Current settings ATI4
Saved settings in Flash memory ATI5
Action Command Example
Change a default setting and
write it to Flash at the same
time AT[Value you are changing]&W ATX6&W