Brother 875 MC - Manual (Page 78)

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C) CONNECTING A TELEPHONE ANSWERING DEVICE
(TAD)
How to Use External TAD with the Unit
When you have a Telephone Answering Device on the fax phone line, the TAD will answer all the
incoming calls. Your Brother fax machine will listen in on the line for fax CNG tones. If it hears
them, it will take over the call and receive the fax message. If it does not hear fax tones, it will
let the TAD continue playing the outgoing message so the caller can leave a voice message.
The TAD must answer within 4 rings (2 rings are recommended). The fax machine can not hear
the CNG calling tones until the TAD answers the call. With 4 rings, only 8-10 seconds of CNG
calling tones are left for the “handshake”. So you must strictly follow the instructions for
recording the OGM.
You must erase the incoming messages frequently on your TAD. When the TAD’s memory is full
it will not answer incoming calls (fax or voice).
Set the TAD: EXT mode in the Message Storage.
Connecting an External TAD to the Unit
You may connect an external TAD to your fax machine, as shown below. Use the
“EXT.” jack on your fax machine.
Do not connect a TAD elsewhere on the same
phone line. This will cause problems because
your fax machine and TAD will both try to
control the line.
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