Helmholz 700-751-HSM11, Manual, Page: 46 / 99

46 Helmholz Modem 56k 4.1
8.1 Overview AT Commands
Command Description
AT**
Start of the flash load function
ATA
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.
A/
Repeat the last command
The last command is repeated.
AT\A<n>
Select maximum MNP block size
Define maximum block size for error corrected MNP transmissions.
AT\A0
64 byte
AT\A1
128 byte (default)
AT\A2
192 byte
AT\A3
256 byte
AT*A<n>
Automatic call acceptance ON/OFF
AT*A0
Call acceptance is blocked, irrespective of S0
AT*A1
Call acceptance according to S0 (default)
Note: see also S-Registry 36, bit 7
AT&A<n>
Selective Call Answer On or Off
To evaluate selective call answer, the phone number must be transmitted (CLIP).
The following countries support the “CLIP” function:
Australia, Belgium, China, Denmark, Germany, Finland, Great Britain, Hong Kong,
India, Ireland, Iceland, Italy, Canada, Korea, New Zealand, The Netherlands, Nor-
way, Austria, Sweden, Singapore, Spain, Taiwan, USA.
AT&A1
Switches the selective call answer ON
AT&A0
Switches the selective call answer OFF (default)
The AT&A setting is saved in
AT&W
.
AT%A<n>
Send alarm text manually
Manual triggering of the message. After the message is sent, the device responds
with
OK
(success) or
ERROR
(failure).
Note: see also
AT*V<n>