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

Page 102

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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