HP Pavilion zd7900 HP Notebook Series - Modem Command Guidelines - Page 6

Modem Command Guidelines Editing a Command If you make an error while typing a command, backspace over the error, then retype. You cannot backspace over the AT prefix because it is interpreted immediately after it is typed. Executing a Command To execute a command line, press enter. (Pressing enter instructs the modem to process the command line.) Repeating a Command To repeat the last command line issued, enter the A/ command. When repeating the A/ command, it is not necessary to enter the AT prefix or press enter, because issuing the A/ command repeats the AT prefix and enter function. The last command entered remains in the command buffer until the modem is reset or power to the modem is turned off. Both actions clear the buffer. The A/ command is invalid while the buffer is clear. Omitting a Parameter in a Command Line If you enter a command that normally includes a numeric parameter, such as ATHn, without entering the numeric parameter, the value of the numeric parameter is assumed to be the default parameter. For example, the Hn (hang-up) command can have a numeric parameter of zero (H0), which is the default, or of one (H1). If neither parameter is entered, ATH plus enter is the equivalent of ATH0 plus enter. This rule does not apply to the D (dial) command. Modem Command Guidelines 3