Panasonic KX-FMC230 Operating Instructions Manual page 63

TEL/FAX mode!
(receiving voice calls but not hearing rings when a fax is
received)
Use this mode when you wish to receive voice calls with rings, but do not want the unit to ring when faxes are
received.
When a call is received, the unit will work as follows.
The unit will automatically answer the line without ringing.
(A telephone fee will be charged to the caller.)
If extension telephones are connected, they will only ring before the call is answered.
The unit will now distinguish between a voice and fax call by detecting the calling tone.
The unit will receive a document.
Silent ring fax recognition system
\ Regarding the ringing pattern of extension telephones and the facsimile unit, see "Hints for using
the TEL/FAX mode" on the next page.
Note:
¡Some fax messages that are transmitted manually may not send a calling tone. These calls must be received
manually.
A call is received.
Fax call Voice call
The unit will start to ring.
¡While ringing, the unit will emit a
different ring back tone to the calling
party.
Answer the call.
¡If you do not answer the call by a
preset number of rings, the unit will
switch to the fax.
Receiving Faxes
63