Motorola iM1000 User Manual page 95

Local Flow Control (PCCA)
This extended compound parameter controls the local flow
control between the computer and the modem. The two
numeric subparameters are DCE_by_DTE (which controls the
data from the modem) and DTE_by_DCE (which controls the
data from the computer).
To change the settings of these parameters, use the &K
command.
Action AT+ifc=<DCE_by_DTE>,<DTE_by_DCE>
Query AT+ifc?
Range AT+ifc=?
+IFC
Parameter Values:
DCE_by_DTE
0 No flow control was set by DTE.
1 XON/XOFF; Do not pass XON/XOFF
characters to the remote DCE.
2 RFR active/inactive flow control
3 XON/XOFF; Pass DC1/DC3 characters to the
remote DCE in addition to acting upon local
flow control.
DTE_by_DCE
0 No flow control was set by DTE.
1 XON/XOFF flow control
2 CTS/RFS active/inactive flow control
Appendix
91