Siemens Insys 56k Operating Manual page 41

Pocket Modem 56k
Command
AT&K<n>
AT-K<n>
Dezember 05
Description
Select data flow control between the PC and the modem (handshake)
Fax operation default is RTS/CTS.
T-Online requires AT&K0.
No data flow control
AT&K0
Select data flow control RTS/CTS (default)
AT&K3
Select data flow control XON/XOFF
AT&K4
Select transparent data flow control XON/XOFF
AT&K5
Select RTS/CTS and XON/XOFF data flow control
AT&K6
Activates the controlled half duplex operation on the serial interface for
AT&K8
RS485. In this mode, the CTS signal is deactivated (high), while the i-
modul Ethernet sends data at the serial interface. Thus, the CTS signal
can be used as driver release signal for a RS485 driver. The polarity can
be set with AT&R.
Extended MNP functions (MNP 10)
This command determines if a V.42LAP-M connection can be switched to a MNP 10
connection
Disables switching from V.42 LAP-M to MNP 10 (default)
AT-K0
Enables switching from V.42 LAP-M to MNP 10
AT-K1
AT commands
35