Introduction; Chapter 1 Introduction; Overview; Applications For The Device - ZyXEL Communications P-2812HNU-51c User Manual

1.1 Overview

The Device is a VDSL, ADSL and Ethernet WAN router, which also includes Voice over IP (VoIP)
communication capabilities to allow you to use a traditional analog telephone to make Internet
calls. By integrating all of these features, you are provided with ease of installation and high-speed,
shared Internet access. The Device is also a complete security solution with a robust firewall based
on Stateful Packet Inspection (SPI) technology and Denial of Service (DoS).
Please refer to the following description of the product name format.
• "H" denotes an integrated 4-port hub (switch).
• "N" denotes wireless functionality, including 802.11n mode. There is an embedded mini-PCI
module for IEEE 802.11 b/g/n wireless LAN connectivity.
• "U" denotes a USB port used to set up a 3G WAN connection via a 3G wireless card or share files
via a USB memory stick or a USB hard drive. The Device can function as a print server with an
USB printer connected.
• "L" denotes the PSTN (Public Switched Telephone Network) line feature. The PSTN line lets you
have VoIP phone service and PSTN phone service at the same time. All PSTN line features
documented in this user's guide refer to the "L" models only.
When the Device does not have power, only the phone connected to the
PHONE port 1 can be used for making calls. Ensure you know which
phone this is, so that in case of emergency you can make outgoing calls.
• Models ending in "1", for example P-2812HNU(L)-F1, denote a device that works over the analog
telephone system, POTS (Plain Old Telephone Service). Models ending in "3", for example P-
2812HNU(L)-F3, denote a device that works over ISDN (Integrated Services Digital Network) or
T-ISDN (UR-2).
See the chapter on product specifications for a full list of features.

1.2 Applications for the Device

Here are some example uses for which the Device is well suited.

1.2.1 Internet Access

Your Device provides shared Internet access by connecting the DSL port to the DSL or MODEM
jack on a splitter or your telephone jack. If you prefer not to use a DSL line and you have another
broadband modem or router (such as ADSL) available, you can set the WAN mode to EtherWAN in
P-2812HNU(L)-Fx Series User's Guide
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H A P T E R

Introduction

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