At Commands; Overview At Commands - Siemens Insys 56k Operating Manual

AT commands

7 AT commands
All INSYS communication devices are controlled internally via AT commands. To
enter AT commands directly – instead of configuring the HSComm software –
we recommend the terminal program TeraTerm by T. T. Teranishi. The free
software can be downloaded at
http://www.vector.co.jp/authors/VA002416/teraterm.html.
If the modem receives an AT command after being switched on, it will
automatically perform an according adjustment to this baud rate, the number
of data and stop bits and the parity.
Each AT command starts with the letters AT and ends with a "Carriage Return"
(CR). Capital and small letters will both be accepted, but the leading characters
must be either 'AT' or 'at'. The command line is evaluated as soon as the
modem received the return.
Example ATL<n> with 'n' having the values 0 to 3, for example ATL2 (medium
volume). For commands which expect a parameter, but are specified without
one, the modem automatically assumes the parameter 0. This means that for
example the command ATZ equals the command ATZ0.
The factory settings are marked with "(default)".
The standard end character is "return" (oDh) or "<CR>". "Return" may not be
entered after "****" or "+++".
Commands are acknowledged with "OK" or "ERROR". A command currently being
processed is interrupted by each subsequent incoming character. Consequently,
the next command must wait until acknowledgment has been received as
otherwise the current command will be canceled.
7.1

Overview AT Commands

Command
AT**
ATA
A/
AT\A<n>
Dezember 05
Description
Start of the flash load function
Answer mode
The modem is switched into response mode. This is only effective in Germany, if the
connected phone goes off-hook or if a call comes in.
Repeat the last command
The last command is repeated.
Select maximum MNP block size
Define maximum block size for error corrected MNP transmissions.
64 byte
AT\A0
128 byte (default)
AT\A1
192 byte
AT\A2
256 byte
AT\A3
Pocket Modem 56k
28