Polycom V500, Руководство администратора, Страница: 21 / 146

Configuring Network Use
3 - 5
Calling Within an Intranet
An intranet is a private network within a company or organization. Calls
within an intranet do not access the Internet, so security is not an issue. Even
if your company has a firewall, intranet calls remain within the firewall, so you
can easily communicate with anyone within your office network.
If you do not need to make calls outside your intranet, you do not need to do
anything more to set up the network connection for your V500 system. Go to
Configuring IP Network Support on page 3-15 .
Calling Through a Cable or DSL Modem
You can access the network and make video calls by connecting your
V500 system directly to a cable modem or DSL modem, without using a
network router. If you connect your V500 system in this way, there is no
security barrier between your home or business network and the Internet;
however, it is an easy way to set up your network connection.
If your V500 system is directly connected to a cable or DSL modem, you do not
need to do anything more to set up the network connection for your
V500 system. Go to Configuring IP Network Support on page 3-15 .
Visit the Polycom Security Center at www.polycom.com/support for timely security
information. Systems deployed outside a firewall are potentially vulnerable to
unauthorized access. You can also register to receive periodic email updates and
advisories.
If you have a DSL connection and you are in a home environment or your DSL
modem does not maintain a connection state automatically, Polycom recommends
that you use a network router.