AT Commands Reference Guide - HW Kitchen

AT Commands Reference Guide
80000ST10025a Rev. 5 - 09/07/08
&K - Flow Control SELINT 0 / 1 / 2
software bi-directional flow control (XON/XOFF) with filtering
Note: if parameter is omitted, the command has the same behaviour as
AT&K0
Note: &K has no Read Command. To verify the current setting of &K,
simply check the settings of the active profile issuing AT&V.
Note: Hardware flow control (AT&K3) is not active in command mode.
3.5.3.2.10 Data Set Ready (DSR) Control - &S
&S - Data Set Ready (DSR) Control SELINT 0 / 1 / 2
AT&S[] Set command controls the RS232 DSR pin behaviour.
Parameter:
0 - always High
1 - follows the GSM traffic channel indication.
2 - High when connected
3 - High when device is ready to receive commands (factory default).
Note: if option 1 is selected then DSR is tied High when the device receives
from the network the GSM traffic channel indication.
Note: in power saving mode the DSR pin is always tied Low.
Note: if parameter is omitted, the command has the same behaviour of
AT&S0
Note: If Selint=2 is selected, and option 1 and 2 are active, DSR will not
tied High in case of GSM voice connection
3.5.3.2.11 Ring (RI) Control - \R
\R - Ring (RI) Control SELINT 0 / 1 / 2
AT\R[] Set command controls the RING output pin behaviour.
Parameter:
0 - RING on during ringing and further connection
1 - RING on during ringing (factory default)
2 - RING follows the ring signal
Note: to check the ring option status use the &V command.
Note: if parameter is omitted, the command has the same behaviour of
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 46 of 434