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C a l l i n g a B u s y
1
*
T7536/T7436 only.
2
*
T7536/T7533/T7531/T7550
/T7565/T7560/T7436/T7433
/T7425/T7450 only.
U s i n g I S D N T e r m i n a l s
ISDN extensions may not
support some of the functions
available with Digital System
Telephone and Single Line
Telephone extensions.
P a r t y
6
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You can also signal a busy party and request for a response during a
conversation. Simply press a button and you can let the busy party know you
are calling. Depending on how the busy party's extension has been
programmed, you can:
• Send a call waiting tone through the built-in speaker of the Digital System
Telephone or the handset of the Single Line Telephone (BSS: Busy
Station Signalling).
• Talk through the built-in speaker on the busy party's telephone (OHCA:
Off-Hook Call Announcement*
• Talk through the handset on the busy party's telephone (Whisper
2
OHCA*
). Your voice will only be heard by your called party (but not by
the person at the other end of the line).
/
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Fig. 16-1 Leaving Message W aiting Indication
The KX-TD612's ISDN compatibility will bring more flexible and improved
call managing environment to your office. To each ISDN (BRI) port that is set
as S0-bus (ISDN extension), you can connect ISDN terminal equipment such
as cordless telephones, PCs, or G4 facsimiles.
ISDN S0 Bus
KX-TD612
MSN 001
ISDN Extension
You can have 2 simultaneous data transmissions because 1 ISDN line carries 2
B channels.
1
).
,
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Leaving a Message Waiting
indication will light the Message
button of the Digital System
Telephone or ring a short burst
ringing tone on the Single Line
Telephone.
MSN 002
Fig. 16-2 Using ISDN Terminals
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