General command to set modem and modem under FreeBSD

Operating environment: FreeBSD 3.4-release, the same dimension 56K external modem

First, set/etc/ppp/ppp.conf

#vi/etc/ppp/ppp.conf

If the modem company COM1 Port is set to:

Default

Set DEVICE/DEV/CUAA0 (other can be invariant)

.....

If the modem company COM2 Port is set to:

Default

Set DEVICE/DEV/CUAA1 (other can be invariant)

.....

Second, run PPP into the term mode:

#ppp

Appear:

Working in interactive mode

Using Interface:tun0

PPP on myhostname> type term

Appear:

Deflink:entering Terminal mode on/dev/tuaa0

Type ' ~? ' for help

The modem can be set up, now type ~? Several useful commands are available:

~p into package mode (exit term mode)

~t Display Timer

~m Display Memory graph

~. Exit term mode

~? Help

General at command used in modem:

(1) at&f Restore factory settings

(2) ATZ0 soft reset

(3) AT&V Display configuration table

(4) At&w Save and write configuration table

(5) ATDT163 dialing number 163

(6) at&z0=163 save phone number 163 to first storage location

at&z1=163 Save phone number 163 to second storage location

at&z2=163 Save phone number 163 to third storage location

at&z3=163 Save phone number 163 to fourth storage location

(7) Atds 0 dialing number of the first position

Atds 1 Dialing The number of the second position

Atds 2 dialing number three.

Atds 3 Dialing number fourth position.

(8) At&s0=0 No self-transport response

At&s0=n (1-255) ringing the modem and answering automatically (this is an option to set up the dialing server)

(9) ATM0 Turn off speaker sound

Turn off speakers when ATM1 is receiving carrier

ATM2 speaker has been in the open state

ATM3 is receiving a carrier and modem closing the speaker sound while dialing

(a) Ar&c0 keep DCD on when no carrier is received

AT&C1 when the carrier of the other modem is received, DCD is placed on state

(one) at&d0 ignores changes in DTR (Digital Terminal Ready)

At&d1 when the DTR from high to low, the modem returns the command state from the data state

At&d2 when the DTR becomes low, hang up and return to the command state

At&d3 when the DTR is low, reset the modem

() ATL1 the speaker volume to bass

ATL2 the speaker volume to alto

ATL3 the speaker volume to treble

(at&k0) Dte/dce flow control is not allowed

At&k3 allow Dte/dce rts/cts flow control

At&k4 allow Xon/xoff dte/dce flow control

At&k5 allow transparent Xon/xoff flow control

AT&K6 allows simultaneous control of rts/cts and Xon/xoff streams