5
6400 Series Multi-line Telephones
The 6400 Series multi-line telephones include the following:
•The 6408+ Telephone — has eight call appearance/feature buttons with
a two-way speakerphone.
•The 6408D+ Telephone — has eight call appearance/feature buttons, a
2-line by 24-character display, and a two-way speakerphone.
•The 6416D+ and 6416D+M Telephones — have 16 call appearance/
feature buttons, a 2-line by 24-character display, and a two-way
speakerphone.
•The 6424D+ and 6424D+M Telephones — have 24 call appearance/
feature buttons, a 2-line by 24-character display, and a two-way
speakerphone.
Note: Only the 6416D+M and 6424D+M have modular capabilities.
For more information on this feature, see “Modular Interface
Capabilities” on page 24.
Use Figure 1 below to familiarize yourself with your 6400 Series telephone.
(The 6408D+ is shown in Figure 1.)
FIGURE 1 The 6408D+ Telephone
7
PQRS
3
DEF
Spkr Mute Hold
Redial Trnsfr Conf
Test Ring
2
ABC
1
4
GHI

*

56
89
MNOJKL
TUV WXYZ
O#
8
12
11
13
14
2
4
Tel #
Menu Exit Prev Next
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