HP Brio 8200 Online Manual page 71

Command
ATOn Returns online, where n is either 0 or 1:
0 - Returns online.
1 - Returns online and retains.
ATQn Control modem responses, where n is either 0 or 1:
0 - Enables response messages (default).
1 - Disables response messages.
ATSr? Reads the value of the S register r. Example: ATS0?
ATSr=n Changes the value of S register r to value n. Example: ATS0=1
S0 = auto-answers calls on the ring corresponding to this register value:
ATS0=1 - auto-answers calls on first ring.
ATS0=0 - turns off auto-answer; to manually answer calls, use the A command.
ATVn Selects modem message format (alphabetic or alphanumeric), where n is either 0 or 1:
0 - Sends responses as numbers.
1 - Sends responses as characters.
ATXn Sets result code displayed. Default value is X4.
ATYn Selects power on/reset default configuration, where n is either 0 or 1:
0 - Default is profile 0 setting in NVRAM.
1 - Default is profile 1 setting in NVRAM.
ATZn Resets modem and uses one of two stored profiles. The n parameter (0 or 1) is used to reset the modem to the preferred profile. Any
commands following the ATZn command are ignored.
AT\N5 Makes MNP links only.
Description
Appendix AT Commands
Basic AT Commands
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