Q, Asynchronous Mode; Chup, Hang Up Call - Motorola G24 Guide Developer's Manual

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:
Command
Type
Execute
Example
ATD035684072//Calling a remote modem - data call
CONNECT//G24 is in Data mode
//Escaping back to Command mode using the +++ sequence
OK
AT //G24 is in Command mode
OK
ATO //Returning to Data mode
CONNECT
&Q, Asynchronous Mode
This command selects the asynchronous mode, and has no effect.

+CHUP, Hang Up Call

This command causes the G24 to hang up the current GSM call.
Command Type
Set
December 31, 2007
The escape character '+' can be changed using the S2-register.
The time delay between consecutive escape characters is configured using the
S12-register.
Syntax
ATO
Qn
Q0 Normal asynchronous operation (no error correction)
Q5 Error corrected operation (default)
Q6 Normal asynchronous operation (no error correction)
Syntax
+CHUP
AT Commands Reference Manual
Chapter 3: AT Commands Reference
CONNECT
+CME ERROR: <err> If phone is not in Data
Call
NO CARRIER: If connection is not
successfully resumed.
Description
Response/Action
OK The Set command hangs up the current
GSM call.
+CME ERROR <err>
Response/Action
Remarks
3-35