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3.3.5.1.5 THE UNIT CAN COPY, BUT
CANNOT EITHER TRANSMIT/RECEIVE
LONG DISTANCE OR INTERNATIONL
COMMUNICATIONS
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The following two causes can be considered for this symptom.
Cause 1:
The other party is executing automatic dialing, the call has been received by this unit, and the CED
or DIS signal response time is too long. (In most cases, this unit detects the CNG signal and can
respond to CED or DIS.) (According to the ITU-Tstandard, the communication procedure is
cancelled when there is no response from the other party within 35 sec, so that the other party
releases the line.)
(Cause and Countermeasure)
As shown in the chart above, the total handshaking time must be reduced, but because of the long
distance connection and linking of several stations, the line connection time cannot be reduced.
Accordingly, the following countermeasures should betried.
(A)... As the 35 sec. count is started directly after dialing or directly after the START button has
been pressed for models with a START button, the other party should be called manually, if
possible. Another possibility is entering two pausesat the end of the auto dial number on the
transmission side. Then the count start time can be delayed for 2 pauses (about 10 sec.).
Cause 2:
Erroneous detection because of an echo or an echo canceler.
Stránka
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27. 10. 2004
file://C:\Documents%20and%20Settings\Admin\Plocha\SCHÉMATA\VIDEA\PAN...
Содержание KMF0209634C2
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