SI3015-F-FS View Datasheet(PDF) - Silicon Laboratories
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Description
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SI3015-F-FS Datasheet PDF : 68 Pages
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Si2403
Table 8. Basic AT Command Set (Command Defaults in Bold)
Command
$
A
A/
Dn
Action
Display AT command mode settings.
Answer incoming call.
Re-execute last command. This is the only command not preceded by “AT” or followed by a
<CR>.
Dial
The dial command, which may be followed by one or more dial command modifiers, manually
dials a phone number:
Modifier
Function
! or &
Flash hook switch for FHT (U4F) ms (default: 500 ms)
, or <
Pause before continuing for S8 seconds (default: 2 seconds)
;
Return to AT command mode after verifying dialtone and dial-
ing any digits.
G
Telephone voting mode. This modifier, intended for use in
Japan, enables a special dial-in voting mode that may be
used with certain automated voting systems. When this modi-
fier is placed anywhere in the dial string (e.g. ATDG), the
Si2403 will dial the phone number and wait S7 seconds (60
by default) to detect a busy tone. When the busy tone is
detected, the Si2403 will report whether or not a polarity
reversal occurs between the time the last digit is dialed and
the detection of the busy tone. The Si2403 will report either
“POLARITY REVERSAL” or “NO POLARITY REVERSAL”. It
is not possible to establish a modem connection when using
this command.
P
Pulse (rotary) dialing—pulse digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
T
Tone (DTMF) dialing—DTMF digits: *, #, A, B, C, D, 0, 1, 2, 3,
4, 5, 6, 7, 8, 9.
W
Wait for dial tone before continuing for S14 seconds (default:
12 seconds). Blind dialing modes X0, X1, and X3 do not
affect the W command.
If the DOP bit (U7A, bit 7) is set, the “ATDTW” command will
cause the Si2403 to pause dialing and either report an “OK” if
a dialtone is detected or “NO DIALTONE” if a dial tone is not
detected.
En
Local DTE echo
E0
Disable
E1
Enable
Hn
Hook switch.
H0
Go on-hook (hang up modem).
H1
Go off-hook.
In
Identification and checksum.
Rev. 1.2
21
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