ZyXEL Communications P-2601HN(L)-F1 Series, Руководство пользователя

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P-2601HN(L)-F1 Series User’s Guide
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H A P T E R
1
Introducing the ZyXEL Device
1.1 Overview
The ZyXEL Device is an ADSL2+ Integrated Access Device (IAD) that combines an
ADSL2+ router with Voice over IP (VoIP) communication capabilities to allow you
to use a traditional analog telephone to make Internet calls. By integrating DSL
and NAT, you are provided with ease of installation and high-speed, shared
Internet access. The ZyXEL Device is also a complete security solution with a
robust firewall and content filtering.
You can use Quality of Service (QoS) to efficiently manage traffic on your network
by giving priority to certain types of traffic and/or to particular computers.
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 USB module for IEEE 802.11b/g/n wireless LAN connectivity.
Only use firmware for your ZyXEL Device’s specific model. Refer
to the label on the bottom of your ZyXEL Device.
• “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 ZyXEL Device does not have power, only the phone with
lifeline connected to the FXO port can be used for making calls.
• Models ending in “1” denote a device that works over the analog telephone
system, POTS (Plain Old Telephone Service).
See the chapter on product specifications for a full list of features.