Specifications

Table Of Contents
The 6400 Series Telephones
7-14 Issue 11 December 1999
Those users who have a 6408D+ (the 6408 telephone with display) can access 12
features with the softkeys and display control buttons. These 12 features can be
used in addition to the features on the call appearance/feature buttons.
NOTE:
The 6408 telephones can work ONLY in a 2-wire environment. For more
information, see Wiring Information.
Applications
Both 6408 telephones have been developed to be used with the DEFINITY ECS
Release 6.1 and later. This type of telephone is especially suitable for managers,
executive secretaries, and other office support personnel who require access to
multiple lines for call handling, call coverage, bridging, conferencing, and
sophisticated voice communications. The 6408D+ display set can be used by
those who have a need for calling party display capabilities or who require a large
number of telephone features.
Physical Features
Dimensions
NOTE:
The dimensions described here for the 6408 telephones are approximate.
Width = 7.8 inches (20 cm)
Depth (front to back) = 8.5 inches (21.59 cm)
Height (with deskstand and handset in place) = 4.75 inches (12.07 cm)
Features
Six Fixed Feature Buttons
The 6408 telephones have the following six fixed feature buttons:
SPEAKER button
MUTE button
HOLD button
REDIAL button
TRANSFER/TEST button
CONFERENCE (labeled CONF)/RING button