Brother MFC-L5750DW Reference Manual - Page 17

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Fax

Before Faxing

Set Telephone Line

Compatibility for

Interference and VoIP

Systems

Related Models:

MFC-L5700DN/MFC-L5750DW/MFC-L6800DW/

MFC-L6900DW

Problems sending and receiving faxes due to

possible interference on the telephone line

may be solved by reducing the modem speed

to minimise errors in fax transmission. If you

are using a Voice over IP (VoIP) service,

Brother recommends changing the

compatibility to Basic (for VoIP).

• VoIP is a type of phone system that

uses an Internet connection, rather

than a traditional phone line.

• Telephone providers frequently bundle

VoIP together with Internet and cable

services.

Press

[Settings] > [All

Settings] > [Initial Setup] >

[Compatibility].

Press the option you want.

• Select [High] to set the modem

speed to 33600 bps.

• Select [Normal] to set the modem

speed to 14400 bps.

• Select [Basic(for VoIP)] to

reduce the modem speed to 9600

bps and turn off Error Correction

Mode (ECM). Unless interference is a

recurring problem on your telephone

line, you may prefer to use this option

only when needed.

Press