INSYS GSM 4.2
INSYS GSM 4.2 compact
Operating
Modes
Sep-06
33
4
Operating Modes
You can operate the INSYS GSM in the following three operating modes:
¾
Connection mode (online)
¾
Command Mode
¾
Alarm State
Note
The configuration mode of previous versions is no longer in use
since the integration of the extended INSYS
AT**
commands.
4.1
Connection mode (online)
In connection mode, the asynchronous byte stream between the serial interfaces of the
INSYS GSM and the remote terminal is exchanged transparently.
During an existing data connection, you can put the INSYS GSM into the following states:
¾
Locally into command mode using the escape sequence
+++
¾
Via the data connection into remote configuration mode using the escape se-
quence
***
Note
The escape sequence activates the command mode.
Example for the design of a connection and for switching into command mode
Dials the number to which a connection is to be set up (al-
ways with dialing code). Only for voice connections, the
phone number must end with a semicolon.
While the other phone rings, the cursor is displayed.
ATD015265241
The call has been accepted. Data is exchanged over the
GSM network.
CONNECT 9600/RLP
Changing from data mode to online AT command mode.
The connection still remains, but no characters are trans-
mitted to the other modem anymore.
+++
Hang up (terminate connection to the other party)
ATH
Return to data mode
ATO
The other party has terminated the connection
NO CARRIER
