User guide
Equipment connected to your telephone line
Other equipment connected to your telephone line should function
normally with the BT Hub.
Microfilters
You’ll need one to plug in the modem and one for every phone socket
where you have any telephony equipment plugged in.
These phone adaptors split your phone line into two channels:
one for your existing voice, fax, etc (analogue) calls, and one for your
high-speed (digital) connection.
Without microfilters, you may experience interference on your voice
calls and/or problems with your broadband connection, including low
speeds and disconnections.
If you want to order more microfilters from us, go to
www.businessshop.bt.com > Modems and Routers >
Modems and Microfilters
If you choose to buy them elsewhere, ensure that they are designed to
work on ADSL broadband lines in the UK. Incorrect microfilters may
cause problems with your phone devices or affect the speed
of broadband.
Firewalls and security
Your BT Hub contains a built in NAT firewall for added security.
As default the firewall is switched on with medium protection,
which is suitable for most small businesses.
It may be necessary to open certain ports to allow for particular
applications that you use on your computer. The default level of
security covers popular applications such as Instant Messenger.
To open a port for a particular application
• Go to your Internet browser
• Type in
bthub.config
• Click on Configuration pages access
• Select Firewall
You can run existing software firewalls including the Windows
®
XP
firewall with the BT Hub firewall for added application level
protection. If you are using a 3rd party dedicated hardware
firewall with the BT Hub, switch off the BT Hub firewall in the
BT Hub Manager to avoid conflicts.
• On your computer click the Start menu from the bottom left corner,
then
Control Panel
• Click on Internet Options, then click on the Connections tab
• Select ‘Dial whenever a network connection is not present’
• Restart your browser before accessing the Internet
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Configuring other existing equipment Configure your Internet browser