Chapter 3: AT Commands Reference
December 31, 2007 AT Commands Reference Manual 3-309
Example
AT&W0
OK
AT&W1
OK
AT&C Set circuit 109 (DCD) behavior 0-2 1 2
AT&D Set circuit 109 (DTR) behavior 0-4 2 3
AT&K Flow control 0, 3-6 3 3
AT&Y Power-up profile 0-1 0 1
S0 Auto-answer 0-255 0 8
S2 Escape code character 0-255 43 8
S3 Carriage return character 0-127 13 7
S4 Line feed character 0-127 10 7
S5 Backspace character 0-32 8 6
S7 Wait time for carrier. Register S7 tells the data
adaptor how many seconds to wait for a
remote data adaptor's carrier signal before
hanging up. The register value can be
increased if the data adaptor does not detect a
carrier within the specified time. If the data
adaptor detects a remote carrier signal within
the specified time, it sends a CONNECT
response and enters Data mode. If it does not
detect a remote carrier signal within the speci-
fied time, it sends the NO ANSWER (or 8)
response, hangs up, and returns to the Com-
mand Mode.
1-255 30 8
S 12 Time, in 50ths of a second, until OK is dis-
played after entering command mode by an
escape sequence.
0-255 20 8
Table 3-201: Profile Parameters (Cont.)
Profile
Parameter
Description
Parameter
Range
Default
Value
Length in
Bits
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