Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 164 Ver. 1.00 – 10/29/2008
2.3.2.6. +++ Escape Sequence
Command Function This command allows a user to escape out
of data mode to command mode in a CSD
call or from connect or listen mode to
command mode in a GPRS call
Command Functional Call Control
Group
Command Format Query N/A
Response N/A
Write Format N/A
Response N/A
Read Format N/A
Response N/A
Execution Format +++
Response OK or no carrier
Parameter Values N/A
Reference N/A
Standard Scope Mandatory
Enfora Implementation Scope Full
Notes The escape sequence requires a guard
period of 1 second before and after
entering +++. Other wise the +++ will be
considered data and forwarded as data.
For CSD, to end the call ATH or AT+CHUP
must be entered. To return to data mode
issue ATO command.