ZyXEL Communications 480 - Manual (Page 26)

Prestige 480 ISDN Router
1-4 Getting to know your Prestige
Call Back
The Callback feature allows the Prestige to disconnect a call and then call back when an authorized
remote user dials into the system. This prevents intruders from accessing your network and makes
accounting easier when you use the Prestige as a dial-in server.
Packet Filtering
The Prestige supports packet filtering that stops leakage of private data to the outside world and
controls access to undesirable locations.
Call Control
Your Prestige provides budget management for outgoing calls and maintains a blacklist for
unreachable phone numbers, thus saving you the expense of unnecessary charges.
Data Compression
Your Prestige incorporates Stac data compression to speed up data transfer. Stac is the de facto
standard of data compression over PPP links.
Networking Compatibility
Your Prestige is compatible with remote access products from other manufacturers such as Ascend,
Cisco, and 3Com. Furthermore, it supports Microsoft Windows 95 and Windows NT dial-up
networking (DUN) capability.
Upgrade Firmware via LAN
In addition to the direct console port connection, the Prestige supports the up/downloading of
firmware and the configuration file using TFTP (Trivial File Transfer Protocol) over the LAN.
Even though TFTP should work over the WAN as well, it is not recommended because of potential
data corruption problems.
Backup and Restore Configuration File
You can backup the configuration of the Prestige to your workstation and also restore the
configuration from your workstation.
1.3 Applications for Prestige 480
The following sections show you the possible applications for your Prestige.