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Helmholz Modem 56k 4.1
53
Command Description
AT\D<n>
(Continuation)
Acoustic response
Description
short long tone – short pause
OK
ready,command executed, PIN ok
- short high tone
long low tone
ERROR
invalid command, wrong PIN
high long tone
LOW
Alarm
input
active
HIGH
Alarm
input
inactive
If no DTMF tone is entered for more than 25 seconds, the modem will automati-
cally disconnect.
If the HELMHOLZ modem recognizes the call tone of a modem that wants to es-
tablish a connection, it will immediately switch to data mode.
AT+DS=<n>
Activate/deactivate V.42bis data compression
AT+DS=0
Deactivates V.42bis data compression
AT+DS=3
Activates V.42bis data compression (default)
AT+DS44=<n>
Activate/deactivate V.44 data compression
AT+DS44=0
Deactivates V.44 data compression
AT+DS44=3
Activates V.44 data compression (default)
ATE<n>
Command entry Echo
This command toggles the responses, which the modem creates as reactions from
application commands (Echo), ON or OFF.
ATE0
Switch
off
Echo
ATE1
Switch on Echo (default)
AT%E<n>
Automatic
Retrain
When transmission problems occur, the modem executes a retrain procedure. After
three unsuccessful retrain attempts, the modem will hang up.
AT%E0
Retrain not allowed
AT%E1
Retrain
allowed
AT%E2
Fall back, fall forward allowed (default)
AT*E
Terminate remote configuration
The command
AT*E
terminates a remote configuration.
AT&F
Loading the default factory settings
The modem loads the default factory setting from the internal, nonvolatile mem-
ory. This puts the modem into a defined basic state.
AT&F
also overwrites a part of
the S registry.
The HELMHOLZ Modem 56k 4.1 has two factory settings (
AT&F0,
AT&F1
).
Содержание 700-751-HSM11
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