ECM (Error Correction Mode); Connecting the machine; Connecting an external telephone- Page 30

Brother MFC-3320CN User's Guide

2014 Dodge Charger SRT Owner Manual

Table of Contents

USER'S GUIDE FAX-1920CN/MFC-3320CN
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INTRODUCTION   

1 - 9

ECM (Error Correction Mode)

The Error Correction Mode (ECM) is a way for the machine to check 
a fax transmission while it is in progress. If the machine detects 
errors during fax transmission, it resends the pages of the fax that 
had an error. ECM transmissions are only possible between fax 
machines that both have this feature. If they do, you may send and 
receive fax messages that are continuously being checked by the 
machine.

Your machine must have enough memory for this feature to work.

Connecting the machine

Connecting an external telephone

If your machine does not have a handset, you can connect a 
separate telephone (or telephone answering device) directly to your 
machine as shown in the diagram below.

Connect the modular plug on the telephone line cord to the jack 
labeled EXT. in the back of the machine.

When this phone (or TAD) is in use, the LCD shows 

Telephone

.

Extension 
Telephone

External 
Telephone

(MFC-3320CN)

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