Configuring Isdn Support - Polycom VSX Series Administrator's Manual

Configuring ISDN Support

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Setting
NAT Configuration
NAT Public (WAN)
Address
NAT is H.323
Compatible
Address Displayed
in Global Directory
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You can add one optional network interface module to the VSX 7000 and VSX 8000
systems. This lets you extend the functionality of the systems so that you can:
❑
Make ISDN calls over a BRI network.
❑
Make ISDN calls over a PRI/T1 network (in North America) or PRI/E1
(outside of North America).
❑
Connect encryption or other third-party network equipment using a Serial
V.35/RS-449/RS-530 interface.
The VSX 3000 (IP with ISDN model) systems support the Quad BRI network
interface for ISDN calling.
Description
Lets you specify whether the system should determine the
NAT Public WAN Address automatically.
• If the system is behind a NAT that allows HTTP traffic, select
Auto.
• If the system is behind a NAT that does not allow HTTP
traffic, select Manual.
• If the system is not behind a NAT or is connected to the IP
network through a Virtual Private Network (VPN), select Off.
• If the system is behind a firewalled NAT router that is UPnP
(Universal Plug and Play) certified, select UPnP.
Many routers used in homes and small businesses support
UPnP NAT traversal. If this is your situation, try selecting
UPnP first. If this selection does not work for your router,
select Auto or Manual.
Displays the address that callers from outside the LAN use to
call your system. If you chose to configure the NAT manually,
enter the NAT Public Address here.
Specifies that the system is behind a NAT that is capable of
translating H.323 traffic.
Lets you choose whether to display this system's public or
private address in the Global Directory.
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Chapter 3 - Configuring Network Use
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