User's Manual

RING, NO CARRIER, ERROR, NO ANSWER, and CONNECT
XXXX. Blind dialing is enabled/disabled by country parameters. If dial tone detection is
enforced and dial tone is not detected, NO CARRIER will be reported. The value 110b is
written to S22 bits 6, 5, and 4, respectively.
X4 Enables monitoring of busy tones; send all messages. The value 111b is written to S22
bits 6, 5, and 4, respectively. (Default)
Yn Enables or Disables Long Space Disconnect
Y0/Y Disables Long Space Disconnect. (Default)
Y1 Enables Long Space Disconnect.
Zn Reset
Zn, which must be placed at the end of the command line, resets the active configuration of the modem to
the stored configuration saved in nonvolatile RAM, hangs up the modem, and clears the command buffer.
Z0/Z Resets the modem and loads stored configuration 0.
Z1 Resets the modem and loads stored configuration 1.
2.2.a Commands Preceded by &
&Cn Select DCD Options
&C0/&C Maintains an ON status for the Data Carrier Detect (DCD).
&C1 Uses the actual state of the carrier from the remote modem for DCD. (Default)
&Dn DTR Option
Determines actions taken by the modem in relation to the Data Terminal Ready (DTR) signal of the serial
port.
&D0 DTR is ignored. Allows operation with DTEs that do not provide DTR.
&D1 DTR drop is interpreted by the modem as if the escape sequence has been entered. The
modem returns to the command state without disconnecting.
&D2 DTR drop causes the modem to hang up. Auto answer is inhibited. (Default)
&D3 DTR drop causes the modem to perform a soft reset as if the Z command were
received.
&F Fetch Factory Configuration
&F0 Recall factory profile 0. (Default)
&F1 Recall factory profile 1.
&Gn Set Guard Tone
&G0 - G1 Disable guard tone. (Default)
&G2 Select 1800Hz-guard tone.