Acer extensa-7x0

Lucent Technologies Inc.

3

(continued)

The modem will accept the C1 command without error in order to assure backward compatibility with
communications software that issues the C1 command.  However, this modem does not support the C0 command.
The C0 command may instruct some other modems to not send carrier (i.e., it puts them in a receive-only mode).

C0:

Transmit carrier always off.

C1:

Normal transmit carrier switching.

Result Codes:

OK

n = 1

ERROR

Otherwise

This command instructs the modem to begin the dialing sequence.  The dial string (n, including modifiers and the
telephone number) is entered after the ATD command.

A dial string can be up to 40 characters long.  Any digit or symbol (0



9, *, #, A, B, C, D) may be dialed as touch-

tone digits.  Characters such as spaces, hyphens, and parentheses do not count



they are ignored by the modem

and may be included in the dial string to enhance readability.

The following may be used as dial string modifiers:

L

Redials last number.  Should be the first character following ATD, ignored otherwise.

P

Pulse dialing.

T

Touch-tone dialing (default).

,

Pause during dialing.  Pause for time specified in Register S8 before processing the next character
in the dial string.

W Wait for dial tone.  Modem waits for a second dial tone before processing the dial string.
V

The modem switches to speakerphone mode and dials the number.  An ATH command may be used to
disconnect the voice call.

@ Wait for quiet answer.  Wait for five seconds of silence after dialing the number.  If silence is not

detected, the modem sends a NO ANSWER result code back to the user.

!

Hook flash. Causes the modem to go on-hook for 0.5 seconds and then return to off-hook.

;

Return to command mode.  Causes the modem to return to command mode after dialing the number,
without disconnecting the call.

^

Disable data calling tone transmission.

S=n Dial a telephone number previously stored using the &Zn=x command (see the &Zn=x command for

further information).  The range of n is 0—3.

$

Bong tone detection.

This command controls whether or not the characters entered from your computer keyboard are echoed back to
your monitor while the modem is in command mode.

E0:

Disables echo to the computer.

E1:

Enables echo to the computer (default).

Result Codes:

OK

n = 0, 1

ERROR

Otherwise