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A Word about Extension Numbers
Avaya one-X Quick Edition Release 2.0.0 Telephone User Guide
July 2006
33
 
To share the Telephone LAN connection with a computer 
Two Ethernet jacks are located on the back of the Telephone (at the top of the housing). A LAN 
icon and a PC icon represent their correct use. Take care to plug your Cat5 (or better) cable into 
the PC port when you connect the Telephone to the computer. 
Note:
Note:
Do not connect a network server PC (for example, a web server, file server, or 
database server) or a network printer to the PC port on a Quick Edition IP 
Telephone.
1. Plug one end of your Cat5 (or better) modular line cord into the Ethernet jack on the 
computer, and the other end into the PC port on the Telephone.
2. Plug one end of the supplied Cat5 modular line cord into the LAN port on the Telephone, 
and connect the other end to the Ethernet LAN.
3. Complete the installation steps as described in one of these procedures (whichever one 
applies to your situation):
If you are installing the first Telephone, see 
.
If you are installing an additional Telephone, see 
A Word about Extension Numbers 
Extension numbers are assigned to one-X Quick Edition devices automatically when they are 
connected to the Ethernet LAN and powered on for the first time. Extension numbers are 
assigned automatically in the order that one-X Quick Edition devices register themselves on the 
network. These extension numbers are retained by the devices afterward, even through 
subsequent power cycles.
It is not usually necessary to change the extension number of a one-X Quick Edition device, but 
if you know the password needed to change system-wide settings, you can change any 
extension number to a different (unused) extension number manually at any time. 
The extension number of a one-X Quick Edition device is stored on the device, which 
communicates any changes to its extension number to all other one-X Quick Edition devices 
making up the network. Any changes are also communicated to the system-wide Auto 
Attendant, and to Quick Edition IP Telephone users through the Corporate directory. 
The system may assign any number in the 200 through 399 range to a new device when the 
device is added to the network. You can change an automatically assigned extension number to 
an unused extension number in the 201 through 299 range—extension numbers 300 through 
399 are reserved for system use and cannot be assigned manually. For information about how 
to change an extension number, see "Managing Extension Numbers" in the "System Options" 
chapter of the Avaya one-X Quick Edition System Administrator Guide.