Datasheet

AT Command Set INSYS Modem 336/56k 4.1 (UL)
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 automatically dis-
connect.
If the INSYS modem recognizes the call tone of a modem that wants to establish a con-
nection, 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 appli-
cation 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 memory. This
puts the modem into a defined basic state. AT&F also overwrites a part of the S registry.
The INSYS Modem 336/56k 4.1 (UL) has two factory settings (AT&F0, AT&F1).
54 July 06