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sendat
Syntax sendat at-string
View Interface view (The interface can be an asynchronous serial interface, a
asynchronous/synchronous serial interface operating in the asynchronous mode,
an AUX interface, or an AM interface.)
Parameter at-string: AT command string. This argument can contain “+++”, “A/” or any
string beginning with AT.
For detailed description of AT commands, see Table 80
Description Use the
sendat command to send AT command to modem manually.
The sendat command sends strings to modem as AT commands without checking
whether or not the strings are valid commands. The characters that are in
lowercase in the string are converted to the corresponding uppercase characters
automatically.
If debugging for modem is enabled on the interface, the result code returned by
modem is displayed. If you specify to display the executed commands, The AT
commands executed are displayed as well.
n
■ To accept AT commands from the modem, you must first put the modem in AT
command mode. So sending commands in transmitting mode is invalid.
■ The sendat command can issue only one AT command at a time.
■ After Modem is configured with the AT command, its operating state might be
changed, thus affecting the functions such as dialup. Please use this function
with caution under the guidance of technicians.
Table 80 Description on common AT commands
Command Description
AT Commands used to configure a modem, except A/ (Repeat Last
Command) and +++ (Escape Code), begin with AT. AT informs the
modem that commands are being sent to it. If you execute the AT
command only, the modem returns OK or 0, which indicates that it is
ready to accept commands.
A Use A command to enable a modem to answer an incoming call
without waiting for the ringing. You can use this command when you
configure to answer an incoming call manually or the modem is
configured to connect to another modem in actively. All the commands
following the A command in the same command line are ignored.