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C-6
APPENDIX C
T Select tone dialing
This command instructs the modem to send DTMF tones while dialing.
Dialed digits are tone dialed until a P command or dial modifier is
received. This is the default setting.
Vn DCE response format
This command controls whether result codes (including call progress
and negotiation progress messages) are displayed as words or their
numeric equivalents.
V0 Displays result codes as digits.
V1 Displays result codes as text (default).
Result Codes:
OK n=0,1
ERROR Otherwise
Xn Result code selection, call progress monitoring
This command selects which result codes will be used by the modem.
Command Dial tone Busy signal Supported Result
detect detect Code
X0 Disable Disable OK, CONNECT, RING, NO CARRIER,
ERROR
X1 Disable Disable OK, RING, NO CARRIER, ERROR,
CONNECT <RATE>
X2 Enable Disable OK, RING, NO CARRIER, ERROR,
NODIALTONE, CONNECT <RATE>
X3 Disable Enable OK, RING, NO CARRIER, ERROR,
BUSY, CONNECT <RATE>,
BLACKLISTED
X4 (default) Enable Enable OK, RING, NO CARRIER, ERROR,
NODIALTONE, BUSY, CONNECT
<RATE>, DELAYED, BLACKLISTED,
REORDER, WARBLE, CALL WAITING
DETECTED