Owner`s manual

MultiMobile 67
Chapter 6—Appendix
Appendix B: AT Command Summary, S-Register Summary,
and Result Codes Summary
AT Commands
How To Use AT Commands
Usually, your data communication software controls the MultiMobile for
you. However, you may also want to use AT commands, which give you
complete control over your MultiMobile. Be careful using these
commands because they can cause your software to loose its ability to
control the MultiMobile. If you find that an AT command causes a
problem, turn the computer off and then back on to reset AT commands to
the factory default settings. You can also type AT&F to return to the
factory default setting.
To use an AT command, you must
1. Run your communication software.
2. Configure the software for the appropriate COM port and IRQ settings,
if necessary.
3. Select Terminal mode (aka Command mode, Local mode, or Direct
mode). This is the mode where most data communication software
packages start. Type the AT command and press Enter.
For example, type ATH0 and press Enter to hang up the MultiMobile
connection or AT&V and press Enter to display the current
configuration.
Most AT commands can be entered in strings (on the same command line)
without spaces between the individual commands. Example: AT&VH0
<Enter>. As shown in the example, it is not necessary to put spaces
between the commands. So, there are no spaces between AT, &V, and H0.
The MultiMobile usually returns a response (or Result Code) at the next
line if it understands the command. The response usually is OK or
ERROR unless the AT command provides other (extended) messages.