3Com 3C10111C - NBX 100 - Modular Exp Base Installation Manual page 164

164 C 9: C
HAPTER ONFIGURING
IP T
ELEPHONY
from your home system to the NBX system network, the NBX system
must have a public IP address.
2 Use the NBX NetSet utility to enable Auto Discover Telephones (System
Configuration > System Settings > System-wide) and then connect the
NBX Telephone to the NBX system.
Auto discovering the telephone while it is connected locally to the NBX
network allows the system to configure the phone in the database and
assign an extension number. You could manually add the telephone to
the database instead of using the Auto Discover feature.
3 Move the telephone to its intended location. Connect it to power and
then use the telephone Local User Interface (LUI) utility to program these
settings:
NCP MAC address — Required only when the network has more than
■
one network call processor.
Telephone IP address — A private IP address matching the IP address
■
scheme on the LAN side of the NAPT device but outside of the DHCP
address range configured in the NAPT device. The telephone must
have a static IP address. For pcXset, this would be the IP address of the
computer.
NCP IP address — The IP address of the call processor that the phone
■
must communicate with. If you are not connecting to the network
through a VPN connection, the NBX system must have a public IP
address.
Subnet Mask — The address mask in use on the LAN side of the NAPT
■
device.
Default Gateway — The IP address of the NAPT device on the LAN.
■
For details on how to start the LUI utility, see
Telephone Key Pad"on
4 Configure the NAPT device:
Use the device's user interface to map UDP ports 2093-2096 to the NBX
telephone IP address. These UDP ports are registered ports for NBX
operations. This mapping feature, known as virtual server, port mapping,
port range forwarding, or rules, is required to allow traffic to pass to and
from the NBX Telephone.
page 158.
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