∙Set auto baud detect to OFF (or NO).
∙Some programs ask “Send init if CD high?”, which you should set to YES. Otherwise the modem may not receive the proper initialization string.
∙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 &W command, re- move the &F from the initialization string. Oth- erwise the contents of the initialization string overrides the saved settings.
∙If the software does not provide a dial string, use ATDT if your telephone line uses tone dialing (as most do), or 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 at the be- ginning of the dial string. For more information about handling Call Waiting, contact your telephone com- pany.
∙If your fax software gives you the option of selecting Class 1 or Class 2 fax drivers, select Class 2 if your modem supports it. Class 2 may provide slightly faster faxing. Otherwise select Class 1.
Using AT Commands
While using your software and modem you rarely, if ever, need to send AT commands directly to the modem. If you need to enter AT commands, you must do so from the software’s terminal mode.
14 | Quick Start and Reference Guide |
