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!UDIBLE SIGNALS
4ONE CHARACTERISTICS 2INGING SIGNALS
4/.% #(!2!#4%2)34)#3
$IAL TONE
3PECIAL DIAL TONE
2INGING TONE
"USY TONE
#ONGESTION TONE
.UMBER UNOBTAINABLE
TONE
#ALL WAITING TONE
#ONFERENCE TONE
2).').' 3)'.!,3
)NTERNAL RINGING SIGNAL
%XTERNAL RINGING SIGNAL
2ECALL SIGNAL
7KH IROORZLQJ GLIIHUHQW WRQHV DQG VLJQDOV DUH VHQW IURP WKH
H[FKDQJH WR \RXU KDQGVHW RU ORXGVSHDNHU
every 15 second
7KUHH GLIIHUHQW ULQJLQJ VLJQDOV LQIRUP \RX DERXW WKH W\SH RI
WKH LQFRPLQJ FDOO
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