Creating And Managing Bridged Extensions - 3Com NBX 100 Administrator's Manual

Creating and
Managing Bridged
Extensions
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 use the LUI utility, see
User Interface (LUI) Utility"
4 Configure the NAPT device:
Use the device's virtual server feature to map UDP ports 2093-2096 to
■
the NBX telephone. These are registered ports for NBX operations.
This device 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.
Bridged extensions allow you to have the extension of a primary
telephone appear on one or more secondary telephones. Most activities
associated with the extension can be performed on both the primary
telephone and any of the secondary telephones. However, you cannot
use a bridged extension on a secondary telephone to place a call.
On any NBX system, you can configure a maximum number of primary
telephones and a maximum number of bridged extension on primary
telephones. See Table
Table 25 Maximum Bridged Extensions
System
NBX 100
SuperStack 3 NBX
SuperStack 3 NBX
There are no restrictions on the number of secondary telephones or the
number of bridged extensions on secondary telephones.

Creating and Managing Bridged Extensions

on page 352.
25.
Device Limit Maximum
Number of
Primary
Telephones
200 100
250 250
More than 250 400
"Using the Telephone Local
Maximum Number
of Bridged
Extensions on
Primary Phones
300
1200
1200
135