DnDial

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 com- mand.

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 pa- rentheses do not count, they are ignored by the modem and may be included in the dial string to enhance readability.

The following characters may be used as dial string modifiers:

 

Redials last number. Should be the first character following

L

ATD, ignored otherwise. The modem displays the dialing string

in the following format: “Dialing…xxxxxxx” where “xxxxxxx” is the

 

 

last number dialed.

 

 

P

Pulse dialing. (e.g. ATDPxxx. Dialing set to pulse as default.)

 

 

T

Touch-tone dialing (default). (e.g. ATDTxxx. Dialing set to tone

as 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.

 

 

 

 

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.

 

 

 

Dial a telephone number previously stored using the &Zn=x

S=n

command (see the &Zn=x command for further information).

 

The range of n is 0-3.

 

 

$

Bong tone detection.

 

 

36

Page 36
Image 36
Actiontec electronic V.90 ISA user manual DnDial, Last number dialed