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On an MLS- or MLC-Model
Phone*
On a Standard Phone
To make an outside call
on a secondary call
The secondary line may be
someone’s primary line; you
may not be allowed to make
outgoing calls.
To Auto Dial a number
You can use an Auto Dial
button to dial a number—for
example, an account
number for an automatic
banking service—while on
an outside call.
To dial a System or
Personal Speed Dial
Number
See pages 5-14 and 5-15 for
programming instructions for
MLS- and MLC-model
phones.
Ask your System Manager
for a copy of the form
showing your company’s
System Speed Dial numbers.
To ring another
extension on your system
To ring an extension using
the intercom on MLS- or
MLC-model phones, see
Appendix B.
To voice page another
extension on your system
You can voice page
MLS-model phones only
To use this feature if the
extension number is not
programmed on a button,
see Appendix B.
To ring all extensions in
a Calling Group
See page 5-13 for
instructions on setting up a
Calling Group. See page
5-16 for instructions on
programming Group Calling
onto a button on MLS- or
MLC-model phones.
1. Press an unlit line button.
2. Lift the handset.
3. Dial the number according to your
Centrex instructions.
1. Lift the handset or press [
Spkr
].
2. Press the Auto Dial button on which the
number is programmed.
The equipment controller selects your
primary line, turns on the speaker if the
handset is on hook, and dials. (The number
being dialed shows on MLS display phones.)
1. Lift the handset or press [
Spkr
].
2. Press [ Feature ].
3. Dial the two-digit Speed Dial code
(20–79 for a System Speed Dial number;
80–99 for a Personal Speed Dial
number.)
The system turns on the speaker if the hand-
set is on the hook, and dials the Speed Dial
number. (The dialed number shows on MLS
display phones unless it is Marked.)
1. Lift the handset or press [ Spkr ].
2. Dial the Centrex extension number.
1. Lift the handset.
2. Press the button programmed with the
Centrex extension number you want
to call.
3. After the beep, start talking.
Your voice is heard on the speaker at the
paged MLS-model phone.
Press the button programmed with this
feature or follow Steps 1 through 3 below:
1. Lift the handset.
2. Press [
Intercom
].
You hear the intercom dial tone.
3. Dial [ 7 ] and a group number (1-4).
All non-busy extensions in the group ring.
This equipment feature is not available
on a standard phone, but may be
available from Centrex.
This equipment feature is not available
on a standard phone. Some feature
phones have programmable buttons
that can store phone numbers for auto
dialing.
This equipment feature is not available
on a standard phone, but may be
available from Centrex. Some feature
phones can be programmed with
speed dial numbers.
1. Lift the handset.
You hear the Centrex dial tone.
2. Dial the Centrex extension number.
This equipment feature is not available
on a standard phone.
This equipment feature is not available
on a standard phone, but your Centrex
system may allow you to ring Centrex
calling groups.
* If you are using an MLC-6 cordless phone, make sure the handset is on before following these instructions. For more
information on using the MLC-6 phone, see AT&T MLC-6 Cordless Telephone Quick Reference: Display and Controls.
Using Telephones
6-13