Telephone Buttons and Indicators
Display
Line/Programmable
[MLS-34D™ and MLS-12D™ only]
Shows date, day, and time when phone is idle, number
dialed when placing a call, extension jack number calling
when receiving an intercom call, and duration while a call is in
progress. When programming, shows settings, options, and
prompts.
Programmable Buttons [without lights]
On these buttons, you can program equipment features or
dialing sequences (such as Centrex feature codes or telephone
numbers) for one-touch access. To program, see panel 4. Once
programmed, press the button to automatically dial the number
or use the feature.
Buttons [with lights]
Your primary Centrex line is on the bottom leftmost button.
Secondary lines may be assigned to other buttons with lights; press
the button to place and receive calls on secondary lines. When no
line is assigned to a button, use it to program features or dialing
sequences (see “Programmable Buttons” above).
NOTE: The MLS-6 (not shown) has 4 dual-purpose buttons. When
4 lines are assigned, it has no programmable buttons. With 2 lines
assigned, the remaining 2 buttons are programmable.
Speakerphone operation
[MLS-34D, MLS-12D and MLS-12]
Press to dial and speak on your phone without lifting the
handset. When you press [
Spkr
], both the speaker and the
micrphone come on (indicated by the lights next to the [
Spkr
]
and [
Mic
] buttons). When the party on the other end answers,
you can speak without lifting the handset. (On the MLS-6,
press to dial without lifting the handset; when the party you
are calling answers, lift the handset to speak.)
Volume Control Buttons.
Press to decrease (
▼
) or increase (
▲
) the volume of the ringer,
speaker, and handset:
■
To adjust ringer volume, while phone is idle and handset is on the phone, press
▼
or
▲
.
■
To adjust speaker volume, press
▼
or
▲
while listening through the speaker.
■
To adjust handset earpiece volume, while listening on a call lift the handset and press
▼
or
▲
.
Message Indicator.
Appears when someone else signals you using the Message Light On
feature. To turn off, press [ Feature ] [ 1 ] [ 0 ] and your extension jack number.
Mic (Microphone) Button.
[MLS-34D, MLS-12D, and MLS-12 only] Press [
Mic
] to turn your
microphone on and off. When the green light next to [
Mic
] is on, the microphone is on. If you prefer
to answer voice paging calls without lifting the handset, leave your [
Mic
] on—see “HFAI” on this
panel. (If you are on a speakerphone call, you can press [
Mic
] to mute your voice.)
MLS-34D, MLS-12D, MLS-12, and MLS-6 are trademarks of AT&T.
2
HFAI (Hands-Free Answer on Intercom).
To answer voice paging calls without lifting the
handset, leave the microphone on all the time (press [
Mic
] if the light next to the button is
off). When you receive a voice paging call (you hear a beep), the person calling can talk to
you over your phone’s speaker; simply begin speaking to have a hands-free, two-way
conversation.
Feature Button.
Use to change programmed settings or access equipment features.
Conf (Conference) Button.
Use to access your Centrex conference features.
Transfer Button.
Use to access your Centrex transfer features.
NOTE: You must subscribe to Centrex conference and transfer to use these features.
Hold Button.
Press to put a call on hold for later pickup.
Intercom Buttons.
Press either button to place an intercom call to another extension using
the extension jack number. (Intercom calls do not tie up primary lines.) Normally you just use
the Centrex extension number to dial an inside call.
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