Phone Reference
6400-series telephones
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Administrator’s Guide for Avaya Communication Manager
November 2003
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 the
number of buttons you can assign. However, when the expansion module is connected,
you must connect an auxiliary power supply to the telephone.
6424D+ telephone
The 6424D+ telephone is a multi-appearance digital telephone with 24 call appearance/feature buttons.
With the 6424D+ 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.
The 6424D+ telephone can work in both 4-wire and 2-wire environments.
NOTE:
You can connect an XM24 expansion module to a 6424D+ phone to expand the number of
buttons you can assign. However, when the expansion module is connected, you must
connect an auxiliary power supply to the telephone.