User`s guide

Internet Server User’s Guide
AT Commands 65
Extended AT& Command Set
Command Var Description
&Bn
Data rate, terminal-to-modem
1
DTE/DCE rate fixed at DTE setting
&Cn
Carrier Detect signal status
0
Forced to On continuously (Default)
1
Follows the status of remote carrier signal
&Dn
Date Terminal Ready (DTR) operations
2
DTR off causes modem to hang up
&F
Load the default factory settings
&Hn
Data flow control, DTE/DCE
0
Flow control disabled
3
Hardware (RTS/CTS) flow control
4
Software (Xon/Xoff) flow control
&Sn
Data Set Ready (DSR)
0
DSR overridden, DSR always on