KX-FT21LA
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Perform the communication test
using the LOOP simulator.
FTT is received after the transmission of a 2400BPS
training signal.
Is "Fall back" executed from
9600BPS?
Modem test
(TEST CODE NO.554)
Is communication OK?
Ask the receiver to perform the
FAX communication from the re-
ceiver to the caller.
If this error frequently occurs at
the receiver, perform transmis-
sion in the above mentioned
mode on the receiving side.
Is communication OK?
Perform voice communication
with the receiver.
End
Check if the line is not inter-
rupted by noises or cross talk.
If not, wait until the line is
satisfactory for correct com-
munication.
(1) Raise the level of transmission. (Do not
raise the level above the standard of each
country. If the communication is
OK at the level beyond the standard, it is due
to the line condition or the receiver’s
machine sensitivity.)
If no effect is obtained:
(2) Slow down the transmission start speed
and transmit to the receiver again.
YES
YES
YES
NO
NO
NO
3.1
3.2
3
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