Owner`s manual

21
3 - AT Commands, S-Registers and Result Codes
Command Options Function & Description
&K3 * Enable bi-directional hardware flow
control (CTS/RTS)
&K4 Enable bi-directional software flow
control (XON/XOFF)
AT& (Ampersand) Commands
Command Options Function & Description
&M0 * Async mode
&Pn Dial Pulse make/break ratio
&P0 * Make=39%, Break=61% for use in the
United States, international version
Make=33%, Break=67% for use in 10
pps, Japan version
&P1 Make=33%, Break=67% for use in
other countries, international version
Make=33%, Break=67% for use in 20
pps, Japan version
&Rn CTS/RTS option (for non-CTS flow
control mode and synchronous mode
only)
&R0 * CTS follows RTS
&R 1 CTS always true
&Sn Data Set Ready (DSR) option
&S0 * DSR always on
&S1 DSR on during handshake and on-line,
off in test mode or idle mode
&Tn Self-test commands
&T0 Terminate test
&T1 Local analog loopback test
&T3 Local activated remote digital loopback
(RDL) test
&Vn View active configuration and stored
profile
* Factory default setting