3Com NBX 100 Installation Manual page 273

Table 41 Troubleshooting Procedures (continued)
Symptom Possible Cause
No more
extensions
available
You are installing a
telephone on a
different subnet
from the network
call processor.
Network The LAN does not
congestion have enough
capacity. (See
"What Impact
Does an NBX 100
Have on a LAN?"
on page 43 for a
summary of how
the NBX 100
affects network
traffic.
Lose date and Problem with the
time when battery on the
rebooting the network call
system processor.
NetSet is very The network uses a
slow in proxy server for
responding. Internet access.
Troubleshooting
Suggested Action
If the system has already allocated all
available extensions, the Auto Discovery
process will not complete. Use NetSet to
set a new starting number, or manually
configure the telephone.
Enable LLC bridging on the gateway
(router) to the subnet.
By default the routers might be configured
to pass certain types of packets, such as IP
packets, and discard anything else. By
enabling LLC bridging, you let the router
pass the NBX 100 Ethernet frames.
Network congestion probably means that
you need to upgrade the network.
However, there are a few short-term
actions you can take to help limit the
problem:
Enable Silence Suppression system-wide
and disable Music-on-Hold audio. See
"Configuring System-Level Settings" on
page 173 for details.
See "Servicing the Network Call Processor
Battery" in the NBX 100 Administrator's
Guide for more information.
A common networking practice is to
employ a proxy server to shield the
network from intrusion by unauthorized
users. However, communications with
NetSet do not need to pass through the
proxy server. To speed access to NetSet,
configure the browser to access the NBX
100 without going through the proxy
server.
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