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SERIES II INTELLIGENT DATA/FAX MODEMS
At the time of this writing, we have three screens of Help information
(Screen #1, #2 and #3), and more screens may be added in the future.
The Help commands are structured so that you can call up one of three
Help screens, as follows:
AT$H1 = Help Screen #1
AT$H2 = Help Screen #2
AT$H3 = Help Screen #3
Inquiry for Product Code I
Some systems or software packages automatically check the
“identification” of the modem with which they are communicating, by
using the I command. This “read” command lets the software to deter-
mine the type of modem with which it is communicating.
When ATI or ATI0 is entered, the Series II Modem responds with 247.
When ATI1 is entered, the modem responds with a three-digit code
indicating the firmware version number. When ATI2 is entered, the
modem responds with MD1641A if it’s a 336 model or MD1640A if
it’s a 336+ model.
Windows 95 Autodetect Inquiry I9
This read command permits a Windows 95 operating system to query
the Series II Modem's characteristics. When ATI9<CR> is entered, the
symbols BA 28800 FAX CT (336 model) or BL 28800 FAX CT (336+
model) are displayed; which indicates to the Windows 95 system that
your particular modem is a Series II Modem 336 or 336+, 28,800 bps, fax
Class 2 capable modem. With autodetect support in your Modem, your
PC can automatically allocate resources and configure it and other
devices. The Modem implements autodetect capability in the form of
a single .INF (Information) file that specifies AT Command mode and
Result Code "Registry Keys" that are specific to your Modem.