System Speed Dial Numbers
Record System Speed Dial numbers—programmed only at extension 10—in the boxes below.
To dial a System Speed Dial number:
Dial Dial Dial
Code
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35 55 75
36
37
38
39
Name Code Name Code Name
40
41 61
42
43
44 64
45 65
46
47
48 68
49
50 70
51
52
53
54 74
56 76
57
58
59
Press [ Feature ] followed by the Dial Code.
60
62
63
66
67
69
71
72
73
77
78
79
System Extension Numbers
Use the boxes below to record the extension number assignments in your system.
To dial an extension number:
Example:
to call extension 11, press [
Ext Name Ext Name
10 16
11
12 18
13
14
15
518-455-152
Press [ Intercom ] followed by the extension number.
Intercom
] [ 1 ] [ 1 ] .
17
19
20
21
Copyright © 1993 AT&T
Telephone Buttons and Indicators
Display
[MLS-18D and MLS-12D only]
When making a call, shows the number dialed and
duration of call. When receiving an intercom call, shows
the number of the extension calling. When not using the
phone, displays today’s date and time. (You can adjust
the display contrast on the MLS-18D–see “Volume Control Buttons” below right.)
Calling Feature Buttons
MLS-18D, MLS-12D, and MLS-12 only]
These four buttons, from left to right are pressed to use
the following features: Privacy, Last Number Redial,
Recall, and Conference Drop. See p. 5.
Line Buttons
Press to make or answer outside calls. Green and red
Iights next to each button show what is happening on the
Iine. See “Lights,” p. 4.
Intercom Buttons
Press either button to make or answer an inside
(intercom) call to another extension.
Feature Button
[Labeled "Feat" on MLC-6]
Press to dial Speed Dial numbers (p. 1.); to store Auto Dial
numbers (p. 4); and (on MLS-6 phones only) to access
the Last Number Redial Recall, and Conference Drop
features (p. 5).
Conf (Conference) Button
Press to add other parties to your call (p. 6).
Transfer Button
(Labeled ”Trans” on MLC-6]
Press to transfer an outside call to another extension (p. 6).
Hold Button
Press to put a call on hold (p. 6).
Auto Dial Buttons
MLS-18D, MLS-12D, and MLS-12 only]
Stores outside or intercom Auto Dial numbers for dialing
with one touch. See p. 4.
Spkr (Speaker) Button
On MLS-18D, MLS-12D, and MLS-12 phones, press to
dial and speak on your phone without lifting the handset.
When you press [
phone come on (indicated by the lights next to the [
and [ Mic ] buttons). When the party on the other end
answers, you can speak without lifting the handset. (On
the MLS-6, press to did without lifting the handset; when
the party answers, lift the handset to speak.)
Speakerphone Hint: For more conveniet speakerphone
operation, leave the microphone on all the time (press
[ Mic ] if the light next to the button is off). When you receive
a voice-signaled 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.
Spkr ], both the speaker and the micro-
Spkr ]
Mic (Microphone) Button
MLS-18D, MLS-12D, and MLS-12 only]
Mic ] to turn your microphone on and off. When the
Press [
green light next to the button is on, the microphone is on
and the person on the other end of a call can hear you. To
answer calls without lifting the handset, leave the micro-
phone on (see “Speakerphone Hint” above). On a speakerphone call, press [
Mic ] to mute your voice.
Message Light
Flashes to show current settings while changing option
settings.
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 hand-
set is on the phone, press ▼ or ▲ .
To adjust speaker volume, press ▼ or ▲ while listen-
ing to a call through the speaker.
To adjust handset earpiece volume, press ▼ or ▲
while listening to a call through the handset.
To adjust display contrast on an MLS-18D phone,
when the phone is idle and the handset is on the
phone; press [ * ]
ness, or ▲ to increase the brightness.
; then press ▼ to decrease the bright-
2
3
Ringing Patterns
You can tell the type of call coming in by the way the phone rings:
Ring...Ring...Ring...Ring..Ring...Ring...
Ring-BEEP...Rlng-BEEP...Ring-BEEP...
Outside Call
Inside Call
Ring-BEEP-BEEP...Ring-BEEP-BEEP... Transferred Call
Lights
Red (top) Iight shows what is happening on the line at ANOTHER extension
Green (bottom) Iight shows what is happening on the line at YOUR extension.
Steady on:
Off (off continuously): Line is idle, available for use.
Flash [long on, long off): Call is ringing on the Iine.
Alternating Red/Green Flash: (red on, green on, red on, green on)
Appears at all extensions in a conference or joined call.
Wink (long on, short off): Call is on hold (anyone with line can pick up).
Flutter
Line is busy.
(short on, short offf): Conference call is on hold.
Help!
If you have problems with your phone, contact your System Manager.
If the problem is not solved, in the continental U.S. please call our toll-free
Heipline, available 24 hours a day, at 1 800 628-2888. Outside the continental
U.S., contact your local AT&T Authorized Dealer.
Auto Dial Numbers
To store an extension number or outside number for one-touch dialing:
1. Press [ Feature ] [ 0 ] [ 0 ] .
2. Press a programmable Auto Dial button (see p. 3).
3. Press left [ Intercom ] and dial the extension number, or dial the telephone
number up to 20 digits, including special functions, see box below. (To set up
an Auto Dial button for group paging, press [
To store additional Auto Dial numbers, repeat Steps 2 and 3.
Feature ] [ 0 ] [ 0 ] when you are done.
4. Press [
Intercom ] [ * ] [ 7 ] .)
To insert a...
Pause (1.5 seconds)
Recall
Stop
Touch-Tone Enable
Press...
Hold ]
[
[ Spkr ]
[ Mic ]
[ Transfer ]
4
[ Line ]
or
[ Intercom ]
[ Line ]
Answering a Call
1. Press the [ Line ] or [ Intercom ] button next to the flashing light.
2.
Lift the handset. (If you Iift the handset without first pressing a
line button, you are connected to the line that has been ringing
the longest time.)
To answer a voice-signaled call (your phone beeps):
1. If the microphone is on, begin speaking (if not press [ Mic ] or lift
the handset).
Joining a Call
To connect yourself to an outside call being conducted at
another extension:
1. Press the [ Line ] button next to the steady red light.
2. Lift the handset.
NOTE: you cannot join an outside call, a conference call, or a call at an
extension with Privacy turned on.
Calling Features
To use these features on an MLS-18D, MLS-12D, and MLS-12 phone, press the calling feature
button. To use on an MLS-6 and MLC-6 phone, press [
Feature
Privacy
Last Number
Redial
Recall
Conference
Drop
How to Use
on MLS-6
and MLC-6
Not Available
Press [ Feature ] [ 0 ] [ 5 ]
Press [ Feature ] [ 0 ] [ 3 ]
Press [ Feature ] [ 0 ] [ 6 ]
How to Use on
MLS-18D, MLS-12D,
and MLS-12
Press [ Privacy ]
Press again to turn off
Press [ Last Num ]
Press [ Recall ]
Press [ Drop ]
Feature ] plus the 2-digit code.
Description
Prevents other people with the
same line from joining your
calls. A steady green Iight next
to [
Privacy
] shows that Privacy
is on.
Redials the last outside num-
ber you dialed. Useful for
redialing a busy number.
"Recalls" a dial tone. If you are
not on a PBX or Centrex, use
Recall to end a call without
hanging – you will get a dial
tone and can then make
another call. Otherwise, use
Recall to get the PBX/Centrex
dial tone.
Drops the last party added to a
conference call.
5
Outside:
[ Line ] +
Phone Number
Inside—Ringing:
[
Intercom
] +
Extension Number
Inside—voice-signaling:
[
Intercom
] + [ * ] +
Extension Number
[
Intercom
] + [ * ] [ 7 ]
Telephone or Extension
Number + [
Conf
Telephone or Extension
Number + [
To Drop:
[
Drop
12D, and MLS-12) or
[
Feature
and MLC-6)
To Hold:
[
Hold
To Pick Up:
[
Line
[
Transfer
Extension Number
] +
Conf
]
] (MLS-18D, MLS-
] [ 0 ] [ 6 ] (MLS-6
]
]
] +
Making a Call
To call an outside party:
1. Press an idle (not lit) line button.
2. Lift the handset.
3. Dial the telephone number.
To call an inside party (another extension):
1. Press an idle (not lit) [ Intercom ] button.
2. Lift the handset.
3. To ring the extension, dial the two-digit extension number, (or to voice
signal an MLS-model phone’s speaker, dial [ * ] plus the extension
number).
NOTE: If you lift the handset without pressing a button, you get the first
available line or the intercom, depending on your phone’s automatic line
selection.
To page all extensions with MLS-model phones:
1. Press an idle (not lit) [ Intercom ] button.
* ] [ 7 ] . When you hear a beep, speak into the handset.
2. Dial [
Your voice is heard on all MLS phone speakers. If a user picks up, the
page becomes an intercom call to that user.
Making a Conference Call
To add parties to a call (max. 2 parties plus you):
1. Call the first party (can use Speed Dial or Auto Dial buttons).
2. After the first party answers, press [ Conf ] .
3. Press an idle line button and call the second party (or press
[ Intercom ] and dial an extension number to add an inside party).
4. After the second party answers, press [
Conf ] again.
You are connected with both parties. The lights at all extensions in the
conference flash red and green.
To drop the last party added to the call:
On MLS-18D, MLS-12D, and MLS-12 phones: Press [ Drop ] .
On MLS-6 and MLC-6 phones: Press [ Feature ] [ 0 ] [ 6 ] .
NOTE: You cannot add more than 2 other parties, transfer a conference
call, or join a conference call.
Putting a Call on Hold
To put an outside or intercom call on hold:
1. Press [ Hold ] .
To pick up a held call:
1. Press the held line button.
2. Lift the handset.
Transferring a Call
To pass a call to another extension:
1.
While active on the call, press [ Transfer ] .
The call is put on hold and you hear intercom dial tone.
2.
Dial the extension to which you want the call transferred.
3.
When someone answers, announce the call, then hang up.
If no one answers or the call is refused, to reconnect to the caller, press
the line button next to the winking green light.
6
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