
LCD Panel Operation 43
Syntax Command with
Parameters*
Description
AB Abort Call.
NT Answer Tone is not detected.
INC INC Incoming call.
VAL VAL Valid.
INV INV Invalid.
LSN LSN n;
<number>
List of stored numbers.
(Response to RLN)
RST RST Changes to the asynchronous
AT command mode.
Clock Options
Synchronous data must be transmitted and received with a common
timing clock. This timing clock is used to transmit data from the DTE to
the modem which modulates the data according to this clock. The
receiving modem recovers the clock and data from the carrier and
sends the data to the receiving DTE along with the clock. There are
three types of transmission synchronous clock sources to choose from:
1. The internal clock is the one that suits most applications and is the
default; in this case, the clock signal is generated by the local
modem.
2. The slave clock is that the clock signal is generated by recieved
data .
3. The external clock is that the clock signal provided by the DTE.
INTERNAL AT&X0 The modem provides the clock and
sends it to the DTE. Adaptive rate can
be used. (Default)
EXTERNAL AT&X1 The DTE provides the clock and sends
it to the modem. Must use auto
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