AT Command Set

Zn Recall Stored Profile

This command instructs the modem chip set to go on-hook and restore the profile saved by the last &W command. Either Z0 or Z1 restores the same single profile.

Result Codes

OK

n = 0, 1

ERROR Otherwise

&Bn V.32 Auto Retrain

This modem always auto retrains.

&B0 Disables V.32 auto retrain—NOT SUPPORTED.

&B1 Enables V.32 auto retrain (default).

Result Codes

OK

n = 1

ERROR Otherwise

&Cn Data Carrier Detect (DCD) Control

Data Carrier Detect is a signal from the modem to your computer indicating that the carrier signal is being received from a remote modem. DCD normally turns off when the modem no longer detects the carrier signal.

&C0 The state of the carrier from the remote modem is ignored. DCD circuit is always on.

&C1 DCD turns on when the remote modem’s carrier signal is detected, and off when the carrier signal is not detected (default).

Lucent/Agere Command Set (Advanced Users Only)

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HP 3005US, 3016US, 3017CL, 3015CA, 3008CL Zn Recall Stored Profile, Bn V.32 Auto Retrain, Cn Data Carrier Detect DCD Control

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