AT Commands
F-8 AT Commands
D
<dial string> Dial
Where <dial string> is a string of up to 98 characters. Valid dial string characters are:
0-9, dial modifiers, and for tone dialing A, B, C, D, #, and *. The modem ignores
invalid characters. Dial strings longer than 98 characters produce an error message.
Dials a telephone number and attempts to establish a connection. The Dial command
must be the last one on a command line.
To cancel the Dial command, press any key or use your data communications software
to lower DTR (unless &D0 is set).
Example
To dial the telephone number 011 22 555 1234, type:
ATD 011225551234
NOTE
After disconnect, there is a five second delay before the modem goes off hook in
originate mode.
Dial Modifiers
Dial modifiers allow you to add conditions to the telephone number you dial. You can
use several modifiers with the same telephone number. Dial modifiers include:
J
(Link Negotiation) Perform link negotiation at 1200 bps for the current connection
only. (This dial modifier is equivalent to the *H1 command.)
K
(Cell-Side Cellular Connection) Sets M1 for the current connection only.
Nn
(Dial an Alternate Stored Number) Follows the last character in a dial string and, if the
modem fails to make a connection, the Nn modifier dials an alternate telephone
number. n is a two-digit number between 01 and 40 that corresponds to a telephone
number stored in the directory with the &Zn or \Pn command.
Example
ATD 5551234N03
If you do not enter a value for n, the modem dials the first stored entry.
You can also store the Nn modifier at the end of the dial string. If you do not specify
any value for n at the end of a stored phone number and the modem fails to make a
connection, it dials the number in the next position. Stored number 01 follows stored
number 40.
Example
AT\P04 5551234N03
