20
KX-TGF340/KX-TGF342/KX-TGF343/KX-TGF344/KX-TGF345/KX-TGF372/KX-TGF373/KX-TGF374/KX-TGF375/KX-TG585/KX-TGFA30KX-TGF340/KX-TGF342/KX-TGF343/KX-TGF344/KX-TGF345/KX-TGF372/KX-TGF373/KX-TGF374/KX-TGF375/KX-TG585/KX-TGFA30
Call Waiting Caller ID
Calling Identity Delivery on Call Waiting (CIDCW) is a CLASS service that allows a customer, while off-hook on an existing call,
to receive information about a calling party on a waited call. The transmission of the calling information takes place almost
immediately after the customer is alerted to the new call so he/she can use this information to decide whether to take the new
call.
Function:
The telephone exchange transmits or receives CAS and ACK signals through each voice RX/TX route. Then FSK data and
MARK data pass the following route.
Telephone Line P101 C105, C106 R105, R106 RA101 IC501(23, 21).
If the unit deems that a telephone connected in parallel is in use, ACK is not returned even if CAS is received, and the
information for the second and subsequent callers is not displayed on the portable handset display.
CAS
CAS: CPE Alerting Signal
Dual Tone of 2130 Hz, 2750 Hz
-15 dBm (900 ohm load)
80 5 ms
MARK
DATA
0~500 ms
58~75 ms about 300 ms
(be changed by
Information Volume)
Continuance Signal
of 1200 Hz (Data "1")
"FSK"
ACK: Acknowledged Signal
DTMF
"D"
ACK
0~100 ms
60 5 ms
Telephone Exchange
Cordless phone
Cordless phone
Signal Flow
Signal Flow
Telephone Exchange
Call Waiting Format
CIDOUT
Pin 24
RA101
C110
R110
R109
RA101
CIDINn
Pin 23
CIDINp
Pin 21
LSRn
Pin 28
C109
C107 C103
C108
R103
R105 C105
C106
C104
R106
R101
R102R104
P101
L1T
L1R
SA101
IC501
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