Extended at& command set – ZyXEL Communications Omni 288S User Manual
Page 102

Chapter 11 - AT Command Set Summaries
11-4
Extended AT& Command Set
Command
Options
Function & Description
Ref.
&Bn
Data rate, terminal-to-modem. (DTE/DCE)
S28.6
&B0
DTE rate follows connection rate. (See also S44.6)
&B1 *
DTE/DCE rate fixed at DTE setting (See also S18, S20,
and S44.6)
&Cn
Carrier Detect (CD) options
S21.4
&C0
CD always ON (See also S42.7)
&C1 *
CD tracks presence of carrier (See also S38.3, S42.7)
&Dn
Data Terminal Ready (DTR) options. (See also S25)
S21.6-7
&D0
Ignore DTR signal, assume DTR is always ON.
&D1
108.1, DTR OFF-ON transition causes dial of the default
number. (See also 'AT*Dn' and S48.4)
&D2 *
108.2, Data Terminal Ready, DTR OFF causes the
modem to hang up.
&D3
Same as &D2 but DTR OFF causes the modem to hang
up and reset from profile 0.
&F
Load factory settings to RAM as active configuration.
&Gn
Guard tone options
S28.4-5
&G0 *
No guard tone (within USA, Canada).
&G2
1800 Hz guard tone.
&Hn
Data flow control, DTE/DCE.
S27.3-5
&H0
Flow control disabled.
&H3 *
Hardware (CTS/RTS) flow control
&H4
Software (XON/XOFF) flow control.
&Jn
Type of Phone line
S28.0
&J0
Single phone line, RJ11
&J1
Multiple phone/modem line, RJ12/RJ13
&Kn
Modem error control and data compression.
S27.0-2
&K0
No error control.(Same as AT&K)
&K1
MNP4 (See also S41.0).
&K2
MNP4+MNP5 (See also S38.5, S41.0).
&K3
V.42+MNP4.
&K4 *
V.42+V.42bis, compatible with &K2 (See also S38.5).
&Ln
&L0 *
Dial-up line
S14.2-3
&L1
2W leased line
&L2
4W leased line, if available
&Mn
Synchronous/asynchronous mode selection
S14.6-7
&M0 *
Asynchronous mode with data buffering
&M1
Asynchronous command, synchronous data
&M2
Direct asynchronous mode, no data buffering
&M3
Synchronous mode
&Nn
Modem link mode options (DCE/DCE). (See also
S43.7, S48.1)
S19