Brother 565 User Manual download pdf (Page 24)

INTRODUCTION 1 - 7

Fax tones and handshake

When someone is sending a fax, the fax machine sends fax calling tones (CNG

tones). These are quiet, intermittent beeps every 4-seconds. You’ll hear them after

you dial and press

Fax Start

and they will continue for about 60 seconds after

dialing. During that time, the sending machine must begin the “handshake” with the

receiving machine.

Each time you use automatic procedures to send a fax, you are sending CNG tones

over the phone line. You’ll soon learn to listen for these quiet beeps each time you

answer a phone on your fax line, so you will know if you are receiving a fax message.

The receiving fax responds with fax receiving tones, which are loud, chirping

sounds. A receiving fax chirps for about 40 seconds over the phone line, and the

LCD shows

RECEIVE

If the fax machine is set to the

FAX ONLY

mode, it will answer every call

automatically with fax receiving tones. If the other person hangs up, the fax machine

will continue to send the “chirps” for about 40 seconds, and the LCD continues to

show

RECEIVE

. To cancel the receiving, press

Stop/Exit

The fax ‘handshake’ is the time in which the sending machine’s CNG tones and the

receiving machines “chirps” overlap. This must be for at least 2 to 4 seconds, so the

fax machines can understand how each is sending and receiving the fax. The

handshake cannot begin until the call is answered, and the CNG tones only last for

about 60 seconds after the number is dialed. So it is important for the receiving

machine to answer the call in as few rings as possible.

ECM (Error Correction Mode)

The Error Correction Mode (ECM) is a way for the fax machine to check a fax

transmission while it is in progress. ECM transmissions are only possible between

machines that both have this feature. If they do, you may send and receive fax

messages that are continuously being checked by the machine.

The fax machine must have enough memory for this feature to work.

When you have an external Telephone Answering Device (TAD) on your fax

line, your TAD will decide the number of rings before the call is answered.

Pay special attention to the directions for connecting a TAD in this chapter.

(See Connecting an external telephone answering device (TAD) on page 1-9.)

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Brother 565 User Manual Page 24