Dtmf Monitor; Tam Interface Section - Panasonic KX-FP342CX Service Manual

This circuit monitors various tones, such as 1 DTMF tone,2 Alarm/
Beep/Key tone/Bell.
2. Signal path
A. DTMF MONITOR
(Speaker Operation)
Refer to CHECK SHEET
(Handset Operation)
Refer to CHECK SHEET
B. ALARM/BEEP/KEY TONE/BELL
Refer to CHECK

7.11. TAM INTERFACE SECTION

7.11.1. FUNCTION
If EXT. TAM is selected in the Receive mode, the unit receives documents for FAX calls or the
external TAM records a voice message automatically.
To switch between the answering machine and facsimile in the EXT. TAM Mode.
# EXTERNAL TAM OPERATION
1 When the bell signal rings as many times as
the number memorized into the connected
answering machine (TAM), the answering
machine is connected to the line and the
answering message is sent out to the line.
(OGMout for 8 ~ 16 sec.)
2 After sending the OGM, the answering
machine starts to record the message of the
other party (ICM recording).
Attention 2:
When the answering machine cannot answer the telephone call because of disconnection or the
recording tape is full, the unit picks up the call after 5 rings (#006 in the feature). Then it switches
to the facsimile.
().
().
SHEET().
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UNIT OPERATION
The length of the answering message
should be 8~16 seconds.
While the message is being played, the unit
starts to detect the CNG signal.(A)
If the unit detects the CNG signal, it will
switch to FAX receivingand disconnect the
external TAM automatically.
If the unit cannot detect the CNG signal for
about 30 seconds, the unit will disconnect
the line. (C)