Quectel EC25

LTE Module Series
EC25&EC21 AT Commands Manual
EC25&EC21_AT_Commands_Manual 32 / 231
Parameter
3.3. AT+IFC Set TE-TA Local Data Flow Control
The command determines the flow control behavior of the serial port.
Parameter
Reference
V.25ter
<value> 0 TA ignores status on DTR
1 LowHigh on DTR: Change to command mode while remaining the connected call.
2 LowHigh on DTR: Disconnect data call, and change to command mode. When DTR
is at high level, auto-answer function is disabled.
AT+IFC Set TE-TA Local Data Flow Control
Test Command
AT+IFC=?
Response
+IFC: (list of supported <dce_by_dte>s),(list of supported
<dte_by_dce>s)
OK
Read Command
AT+IFC?
Response
+IFC: <dce_by_dte>,<dte_by_dce>
OK
Write Command
AT+IFC=<dce_by_dte>,<dte_by_dce>
Response
This parameter setting determines the data flow control on
the serial interface for data mode.
OK
Maximum Response Time
300ms
Reference
V.25ter
<dce_by_dte> Specifies the method that will be used by TE when receiving data from TA
0 None
2 RTS flow control
<dte_by_dce> Specifies the method that will be used by TA when receiving data from TE
0 None
2 CTS flow control