Calling Party Control Detection - Sharp UX-470 Operation Manual

Calling Party Control detection

When a caller hangs up, your local telephone exchange will issue a
signal called a Calling Party Control (CPC) signal via the telephone
line. Your UX-470 has been set to detect this signal, and this allows it
to immediately stop recording when a caller hangs up, thereby saving
memory space and freeing you from having to listen to long periods of
inter-message silence when you play back your messages.
However, if you are a subscriber to such telephone services as Call
Waiting or Call Forwarding, signals used by these services may be
mistaken for a CPC signal, causing the machine to hang up during a
call. In this case, follow the steps below to turn off CPC detection.
Note: CPC may not operate from some types of telephone exchanges. For
this reason, periods of silence and/or telephone exchange end of call
signals may be recorded even if CPC detection is turned on.
1
Press these keys:
The display will show:
2
Press these keys:
The display will show:
3
Press "1" to turn CPC detection on, or
"2" to turn it off.
4
Press the STOP key.
Optional Answering Machine Settings
FUNCTION
0
A.M. SETTINGS
CPC DETECTION
2
1
or
STOP
45