Connecting an external device to your MFC; Connecting an external telephone; Connecting an external telephone answering device (TAD)- Page 122

Brother MFC-7420 User's Guide

2014 Dodge Charger SRT Owner Manual

Table of Contents

USER'S GUIDE MFC-7420/MFC-7820N
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A - 5

Connecting an external 
device to your MFC

Connecting an external 
telephone

You can connect a separate telephone (or 
telephone answering device) directly to your 
MFC as shown in the diagram below.

Connect the telephone line cord to the jack 
labeled EXT. in the left of the MFC.

When you are using an external phone, the 
LCD shows 

Telephone

.

Connecting an external 
telephone answering device 
(TAD)

Sequence

You may choose to connect an external 
answering device. However, when you have 
an 

external

 TAD on the same telephone line 

as the MFC, the TAD answers all calls and 
the MFC ā€œlistensā€ for fax calling (CNG) tones. 
If it hears them, the MFC takes over the call 
and receives the fax. If it does not hear CNG 
tones, the MFC lets the TAD continue playing 
your outgoing message so your caller can 
leave you a voice message.

The TAD must answer within four rings (the 
recommended setting is two rings). The MFC 
cannot hear CNG tones until the TAD has 
answered the call, and with four rings there 
are only 8 to 10 seconds of CNG tones left for 
the fax ā€œhandshakeā€. Make sure you carefully 
follow the instructions in this guide for 
recording your outgoing message. We do not 
recommend using the toll saver feature on 
your external answering machine if it exceeds 
five rings.

Note

ā– 

If you do not receive all your faxes, reduce 
the Ring Delay setting on your external 
TAD.

ā– 

If You Subscribe to your Telephone 
Companyā€™s Distinctive Ring Service: 

You may connect an external TAD to a 
separate wall jack only if you subscribe to 
your telephone companyā€™s Distinctive 
Ring service, have registered the 
distinctive ring pattern on your MFC, and 
use that number as a fax number. The 
recommended setting is at least four rings 
on the external TAD when you have the 
telephone companyā€™s Distinctive Ring 
Service. You cannot use the Toll Saver 
setting.

ā– 

If You Do Not Subscribe to Distinctive 
Ring Service:

You must plug your TAD into the EXT. 
jack of your MFC. If your TAD is plugged 
into a wall jack, both your MFC and the 
TAD will try to control the phone line. 
(See illustration below.)

Extension 
Telephone

External 
Telephone

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