User’s Manual
C-5
AT Commands
Result Codes:
OK
n=0,1
ERROR
Otherwise
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
detect
Busy
signal
detect
Supported Result 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
X5
Enable
Enable
OK, RING, NO CARRIER, ERROR,
NODIALTONE, BUSY, CONNECT <RATE>,
RRING, NO BONGTONE, DELAYED,
BLACKLISTED, REORDER, WARBLE, CALL
WAITING DETECTED