Panasonic UF-E1 Service Manual page 147

c. If the calling party is an operator
If the calling party is an operator, CNG will not be sent from the calling party. The unit will request an
operator's attention through the built-in speaker while sending OGM1.
Calling Party
(Voice Call)
d. If the calling party is an operator and no one at the machine picks up the handset.
The machine will send Fax communication signals (CED/NSF/CSI/DIS) at the end of sequence,
even though the machine does not detect the CNG signal.
Calling Party
(Fax Call)
(2) Fax / Built-In TAM Automatic Switching Mode
The Fax / Built-in TAM Automatic Switching Mode is designed for the IC TAM included in the machine. This
mode automatically switches the telephone line between the Fax and the TAM. When a call is received, the
TAM answers the call first. During that time, the fax also monitors the line to determine whether it is a voice
or a Fax call. If it is a voice call, the TAM will continue to function. If it is a fax call, the machine will automat-
ically switch the line to fax and begin receiving the document.
Ringer
Pseudo Ring back tone
OGM1
Telephone
Conversation
Ringer
Pseudo Ring back tone
OGM1
OGM2
CED
NSF / CSI / DIS
NSF / CSI / DIS
NSF / CSI / DIS
DCN
Machine
1S
On Line
T1 = 4 sec.
1S
2S
Request Operator Attention
T2 is determined by Fax
Setting. Default Value is 9
(27 sec.).
Off-Hook or
SPEAKERPHONE is pressed.
On-Hook
Machine
1S
On Line
T1 = 4 sec.
1S
2S
Request Operator Attention
T2 is determined by Fax
Setting. Default Value is 9
(27 sec.).
Off Line
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UF-E1