Chapter 2 Using the Faxmodem
27
into the initialization string based on the device you
select during installation. The commands remain in effect
throughout the communications session, unless the soft-
ware sends other commands to override them.
The software uses other AT command strings for other
purposes. For example, when you make a call, the soft-
ware inserts AT commands in a dial string before the
phone number you are calling. You typically can use the
AT command strings that are provided with the software.
It is sometimes necessary to add other AT commands to
the strings as suggested in the section Tips for Selecting
Setup Options above and in Chapter 3. For a table of AT
commands, see Appendix E.
•
If your software suggests an initialization string for
this modem, you should use it. If this modem is not
listed by your software and no initialization string is
suggested, use the following initialization string:
AT &F
NOTE: If you are familiar with AT commands and you
save any settings in the modem’s nonvolatile
memory using the modem’s &W0 or &W1
command, remove the &F from the initialization
string. Otherwise, the contents of the initialization
string overrides the saved settings.
•
•
If the software does not provide a dial string, use
ATDT if your phone line uses tone dialing (as most
do), ATDP if the line uses pulse dialing.
•
•
If your telephone service includes Call Waiting that
you can temporarily suspend by pressing *70, include
ATDT*70, in the dial string. (
NOTE:
Be sure to type
the comma). (For pulse dialing, use ATDT1170, as
the dial string.) For more information about handling
Call Waiting contact your telephone company.
Using AT Commands
While using your software and modem you rarely, if ever,
need to send AT commands directly to the modem. How-
