AT&T MDC 9000 Specifications download pdf (Page 48)

Ringing Patterns

System phones have these ringing patterns:

■ An outside call will ring . . . ring . . . ring.

■ An intercom call will ring BEEP . . . ring BEEP . . . ring BEEP. If you have

a system display phone, the caller’s extension number (and name if

programmed) will show on the display.

■ A transferred call, or an unanswered transferred or parked call that is

ringing back at your extension, will ring BEEP BEEP . . .

ring BEEP BEEP . . . ring BEEP BEEP.

NOTE:

If you use the system with PBX or Centrex lines, the PBX/Centrex distinctive

ringing patterns are not passed to phones. Phones use the ringing patterns

described here instead.

Dial Tones

You will encounter two different dial tones when calling with a system phone:

■ Outside dial tone is generated by your local phone company to indicate

that you are connected with an outside line.

■ Intercom dial tone is generated by the system to indicate that you are

connected with an inside line. You hear this dial tone when you are

making an inside, or intercom, call.

To hear the difference between the two types of dial tones on a system phone,

press a line button. The dial tone you hear is an outside dial tone. To hear an

intercom dial tone, press [

Intercom

Using the Handset, Speaker, and Microphone

Every system phone (except the MDC 9000 and MDW 9000 phones) has a

speaker and a microphone, which you can turn on by pressing [

Spkr ]. In

addition, you can turn just the microphone on and off by pressing [

Mic/HFAI

When the green light next to [

Mic/HFAI

] is on, the microphone is on.

If you prefer to dial and conduct calls without lifting the handset, you can use

the speaker and the microphone instead. Use these techniques to make calls

with the speaker and the microphone:

■

To make a call without lifting the handset, press [

Spkr

] to get a dial tone;

then dial the number and you will hear the call ringing. When the other

party answers, you can talk without lifting the handset.

■ If you are already on a call, you can switch from the handset to the

speaker and microphone by pressing [

Spkr ] and hanging up the handset.

Conversely, if you are using the speaker and microphone and want to

switch to the handset, lift the handset and the speaker and microphone

will turn off.

Learning About Telephones 3-5

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AT&T MDC 9000 Specifications Page 48

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