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MERLIN LEGEND Communications System Release 5.0
System Manager’s Guide  
555-650-118  
Issue 1
June 1997
System Components 
Page 3-21
Telephones 
3
replaces an MLX-10 or MLX-10D telephone, all line and feature 
buttons must 
first
 be removed from the extension by centralized 
telephone programming, so that “phantom buttons” do not exist for the 
new telephone. Programming instructions come with the equipment.
MLX-5D telephones can be wall-mounted, but wall-mounting makes the display 
hard to read.
Figure 3–9. 
MLX-5D Telephone
MLX-5
3
The MLX-5 telephone provides the following features:
5 line buttons that can be programmed with features
4 fixed display buttons, 4 unlabeled display buttons for screen selection, 
and 8 fixed-feature buttons
NOTES:
1.
The MLX-5 telephone should not be an operator console.
2.
In Release 5.0 and later systems, the system recognizes the MLX-5D 
as a 5-button telephone. In releases prior to 5.0, the system recognizes 
the MLX-5 as an MLX-10. For this reason, when programming the 
telephone, be careful not to assign lines or features to buttons that do 
not actually exist on the telephone. When an MLX-5 telephone 
MLX-5D
Feature
Transfer
HFAI
Home
Menu
Inspct
More
Conf
Mute
Drop
Speaker
Hold
Volume
1
2
ABC
3
DEF
5
JKL
4
GHI
6
MNO
8
TUV
5
JKL
7
PQRS
9
WXYZ
Button Labeling Card
Handset
Volume Control
Fixed-Feature Buttons (8)
User Cards and Tray
Message Light
Dialpad
Line Buttons (5)
Fixed-Display Buttons (4)
Display Screen
Unlabeled Display Buttons (4)