6-4 C HAPTER 6: W ORKING WITH MEMORYYou can reset the voice/data switch at any time (See Appendix AS-Registers for a complete list of S32 voice/data switch functions). Yocan also overwrite the stored command string with a new one at anytime.4 Now, you can press the voice/data switch whenever you want the storedcommand string executedExample: Issuin AT&ZC=I6 to your modem stores the command stringthat displays the link diagnostic screen to NVRAM. Then issuing theATS32=9 command to your modem will allow you to display the linkdiagnostic screen whenever the voice/data switch is pressed.Working with FlashMemoryThe Courier V.Everything modem permanently stores three configuratio"templates," or prepared sets of commands, in Flash memory. You canuse the &Fn command to load one of the three configuration templatesfrom Flash memory into current memory.Example: Sending AT&F1 to your modem will load the Hardware FlowControlTemplate into RAM Memory.DIP switch settings override AT commands at power-on. You can set DIPswitch 10 to ON and reset the Courier V.Everything modem to load the&F0 settings.All of the settings in each template are given in Appendix C, Flow ControlTemplates.For more information about hardware and software flow control, SeeChapter 12, Flow Control.Saving ROTemplates to NVRAMTo save one of the three ROM templates to NVRAM and have it serve asthe reset default, enter AT&Fn&WTo load this configuration template into current memory CommandNo flow control (low performance). AT&F0Hardware flow control. AT&F1Software flow control. AT&F2