Avaya Communication Manager Administrator's Manual page 609

6408/6408D telephones
The 6408 is a multi-appearance digital telephone with eight call appearance/feature buttons.
The 6408 telephone is available in the following four models:
6408 telephone—includes a 1-way, listen-only speaker, and no display
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6408+ telephone—includes a 2-way speakerphone, and no display
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6408D telephone—includes a 1-way, listen-only speaker, and a 2-line by 24-character
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display
6408D+ telephone—includes a 2-way speakerphone, and a 2-line by 24-character display.
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With the 6408D and 6408D+ telephones, the end-user can access 12 features with the softkeys
and display control buttons. These 12 features can be used in addition to the features you
assign to the call appearance/feature buttons.
The 6408, 6408+, 6408D, and 6408D+ telephones can work only in 2-wire environments.
6416D+ telephone
The 6416D+ telephone is a multi-appearance digital telephone with 16 call appearance/feature
buttons.
With the 6416D+ telephone the end-user can access 12 features with the softkeys and display
control buttons. These 12 features can be used in addition to the features you assign to the call
appearance/feature buttons.
Note:
You can connect an XM24 expansion module to the 6416D+ telephone to expand
Note:
the number of buttons you can assign. However, when the expansion module is
connected, you must connect an auxiliary power supply to the telephone.
6416D+M telephone
The 6416D+M telephone is similar to the 6416D, but with modular capabilities. You can install a
module in the telephone's desktop stand for increased set functionality. Note that these
modules can only be used in the desktop position; they cannot be used if the telephone is
wall-mounted.
6400-series telephones
Issue 1 June 2005 609