Chapter 3: AT Commands Reference
April 15, 2008 G24-L AT Commands Reference Manual 3-33
O, Return to Online Data State
This command returns the G24-L from the Command mode to the Online Data mode and issues a
CONNECT or CONNECT <text> result code.
After dialing or answering (atd/ata commands and connect), the phone enters the Online Data
mode where it is able to transfer data, but not to enter AT commands.
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.
Example
ATD035684072 //Calling a remote modem - data call
CONNECT //G24-L is in Data mode
//Escaping back to Command mode using the +++ sequence
OK
AT //G24-L is in Command mode
OK
ATO //Returning to Data mode
CONNECT
&Q, Asynchronous Mode
This command selects the asynchronous mode, and has no effect.
Command
Type
Syntax Response/Action
Execute
ATO CONNECT
+CME ERROR: <err> If phone is not in Data
Call
NO CARRIER: If connection is not
successfully resumed.
Qn Description
Q0 Normal asynchronous operation (no error correction)
Q5 Error corrected operation (default)
Q6 Normal asynchronous operation (no error correction)
