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Hayes protocol reference
A, a
Manual answer command
When the A command is entered, the Modem goes OFF HOOK and waits
for the carrier signal. Use this command to begin computer communication
immediately after talking with a friend by phone. In this case, one user should
input A while the other uses the dial command D. Any command placed
after A will not be executed. If you want to execute other commands, insert
the commands before the manual answer command.
Example:
AT F1 A ( ENTER )
Wak9- up!
D, d
S9-19-Ct full dupl9-X.
Wait for a· carrier tone.
Autodial command
The D command sets the Modem to originate
a
call without using a tek-
phone. D can be followed by the dialer codes shown in Table 11. When used
alone, D sets the Modem to auto-originate mode.
Codes
0-9
(,), -, SPc::lC9-
*,
#
p
T
R
, (comma)
; (semicolon)
Example:
Table 11. Dialer Codes
Function
Used for the telephone number. .
Us9-d to make the telephon9- number rec::idable.
Used only in touch-ton9- dic::lling mod9-.
Sets the Modem to puls9- dialing mode.
Sets the Modem to
touch-ton~
dialing mode.
Cht:mQ9-S the Modem from originate rnode to an~wer
mod9- onc9- communication is 9-Stablish9-d.
S9-tS the Modem to Pc::lUSe while dic::lling (can be U!)9-d
after th9- c::lCCess code).
-
Returns the Modem to commc::ind mode after dialing.
AT DT(111)123-0009 (ENTER)
Wake up!
Originate a call by touch-tone dialing.
After dialing the number, the Modem waits for a carrier sigqal. When a carrier
is not detected within a time set by register S7,. the Modem automatically
releases the line and sends the result code:
NO CARRIER (or 3)
40
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