AT Commands Reference Manual - wireless netcontrol GmbH

Call Control
The ESC command +++, transfers the phone to the Command mode (able to input AT commands,
while preserving the Data call). The O command returns the phone to the fully Online Data mode
(as it was before using the ESC command).
Note: The escape character '+' can be changed using the S2-register.
The time delay between consecutive escape characters is configured using the
S12-register.
Command
Type
Syntax
Response/Action
Execute ATO CONNECT
+CME ERROR: If phone is not in Data
Call
NO CARRIER: If connection is not
successfully resumed.
Example
ATD035684072
//Calling a remote modem - data call
CONNECT
//H24 is in Data mode
//Escaping back to Command mode using the +++ sequence
OK
AT
//H24 is in Command mode
OK
ATO
//Returning to Data mode
CONNECT
+CR, Service Reporting Control
This command controls whether or not the extended format of an outgoing or incoming data call
is displayed or not. The +CR indication is sent from the H24 to the terminal whenever a data call
is established.
Command
Type Syntax Response/Action Remarks
Set +CR= OK
OR
+CME ERROR:
Read +CR? +CR:
OK
Test +CR=? +CR:
OK
The Set command enables/disables the
extended format of a data call. When
enabled, the data call is indicated to the
terminal through the unsolicited result
code +CR:. When the command
is disabled, no +CR is sent to the
terminal.
The Read command displays the
current service reporting control
setting.
The Test command displays the list of
supported CR modes.
Execute +CR OK The execute command sets the default
value of .
3-40 H24 - AT Commands Reference Manual April 15, 2010