Manual 7XV5655-0BB00
SIEMENS AG
Page 51 of 79
C53000-G1176-C175-3
Description of AT Commands
Hayes Commands
The Hayes command set (AT commands) has over time developed into an industry
standard among modem manufacturers. In addition to these, manufacturers use their
own modem commands that are specific to the brand. Some of these commands are
not compatible with modems of other manufacturers.
ATA Call
accept
This command makes the modem go off-hook to connect to the calling remote modem.
If no signal is recognised after a specified time, the modem hangs up again.
ATD
Dialling function.
Æ
ATD
ipaddress
ATDP and ATDT are suppressed and executed as ATD
P = pulse dial, T= tone dial
Æ
ATD192.109.223.4
Æ
ATD192,109,223,4
Æ
ATDP192.109.223.4
Æ
ATDP192,109,223,4
Æ
ATDT192.109.223.4
Æ
ATDT192,109,223,4
ATE
Activates/deactivates command echo:
Æ
ATE0 echo off
Æ
ATE1 echo on
ATH
Makes modem go on or off hook.
Æ
ATH0 modem hangs up (goes on-hook), the connection is broken off.
(Only possible in command mode)
Æ
ATH1 modem goes off hook (identical function to ATO).
ATN
Assigns the modem a name
A device name can be assigned to the modem (up to 20 characters, is
stored in capital letters).
Æ
ATN
=name
Assigns a device name
Æ
ATN?
Reads out a device name