Thermo Scientific V.22/212A User Manual page 26

ATIn The ID Code Command. The different values of "n" (0-4) provides ID codes, and
various firmware and software data. ID Codes are identified as follows:
0
1
2
3
4
ATLn The Speaker Volume Command adjusts the modem's speaker volume (not required
for this modem). Values for "n" are 0 for the lowest volume and 3 for the highest.
ATMn The Speaker Control Command sets the speaker operation mode (not required for this
modem). Values for "n" are defined as follows:
0
1
2
3
ATOn The On-Line Command returns the modem from the command mode to the on-line
mode after an escape sequence. The values of "n" are defined as follows:
0
1
2
3
ATQx The Quiet Result Command enables or disables result codes. When the value of "x"
is 0, the result code are enabled. A value of 1 disables the result codes.
ATSr=n The Set S-Register Command places the numeric value represented by "n" into the S-
Register represented by the "r".
ATSn? The Read Value of S-Register Command displays the value stored in the S-Register
represented by "n".
ATVx The Verbose Results Command displays the result codes in numeric form or verbose
(CONNECT, OK, RING, etc.) form. When the value of "x" is set for 0, the modem
uses the numeric form. When "x" is 1, verbose is used. Stored default is 0.
Product Code (249).
ROM Checksum.
Checksum Test.
Product Revision.
Software Copyright.
Speaker always off.
Speaker on during dialing, but off after carrier is detected.
Speaker always on.
Speaker off during dialing, but on while waiting for carrier, and off after
carrier detected.
Return to on-line.
Return to on-line and initiate a retrain sequence, causing the connected
modems to test the telephone line characteristics and optimize their operation
for the best data transmission.
Enables an automatic retrain sequence.
Disables the automatic retrain sequence.
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