RMM Rack Mount Modem; User's Guide
UP Dumb Mode: Disables command recognition
X DOWN Smart Mode: Enables command recognition
5.Command Summary
●Type commands in either upper or lower case. Do not use a combination of upper and lower case characters.
●Use the Backspace key to delete errors. Note that the original AT command is stored in the modem buffer, and cannot be deleted.
●Some commands have numeric options. If these commands are invoked without a numeric option, the modem will assume option 0 (zero). For example, when the command ATB is invoked, the modem will assume command ATB0 was intended.
●All commands begin with the AT prefix, and are invoked by pressing [Enter] (Carriage Return). The only exceptions are the A/ command (Repeat previous command) and +++ (Exit to
●The maximum command length is 40 characters. This does not include the AT prefix, Carriage Returns, or spaces.
Note: Default values are marked with an asterisk. All defaults are based on the
Command Function/Options
$ | Displays basic command list |
AManual Answer: goes off hook in answer mode. Pressing any key aborts the operation.
A/ | ||
| the AT prefix or a Carriage Return. | |
Any Key | Aborts | |
AT | Required prefix for all modem commands. Can also be used to test for the OK | |
| result code. Not required for the A/ command or +++ command. | |
Bn | U.S./ | |
| * B0 | |
| B1 | U.S. answer tone |
Dn | Dials the specified phone number. Can also include the following command | |
| options: |
|
| DL |
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