Oki OKIFAX4550 Maintenance Manual page 89

• TAD mode flow chart
In case of TYPE 2:
If the fax does not detect CNG signal during working of TAD, the machine will go to
standby mode.
In case of TYPE 3:
The fax does not detect CNG signal during 15 seconds from TAD operation starting. The
fax starts CNG signal detection after 15 seconds from TAD operation.
When the fax does not detect CNG signal and ends TAD operation (on-hook of TAD
operation), the fax return to standby state.
Telephone call
or manual
transmission
41309401TH Rev.4
Calling
party
Ringing
Message from answer machine
To record your message in
answering machine
Indication of LCD
Called
(TAD)
party
CML ON
2.1S
TELEPHONE BUSY
Answering
Machine
Switches to
FAX
CML "OFF"
14:14 TAD
15S
CNG is not
detect
CNG
Detection
Period
14:14 TAD
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