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P-2302HWUDL-P1 Series User’s Guide
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CHAPTER 1
Introducing the ZyXEL Device
This chapter introduces the main applications and features of the ZyXEL Device.
1.1 Overview
This user’s guide explains how to configure the following ZyXEL devices:
• The P-2302HWUD-P1 is a 4-port wireless router with Voice over IP (VoIP)
communication capabilities that allow you to use a traditional analog telephone to make
Internet calls. The P-2302HWUD-P1 is also a complete security solution with a robust
firewall and content filtering.
• The P-2302HWUDL-P1 adds a Public Switched Telephone Network (PSTN) line feature
which allows you to use your regular phone services and internet telephone services at the
same time.
This user’s guide refers to these models simply as the “ZyXEL Device”. Please refer to
Appendix A on page 287 for a complete list of features for your model.
1.1.1 VoIP Features
You can use the ZyXEL Device to make and receive VoIP telephone calls:
Figure 1 ZyXEL Device’s VoIP Features
• Peer-to-Peer calls (A) - Use the ZyXEL Device to make a call to the recipient’s IP address
without using a SIP proxy server.
• Calls via a VoIP service provider (B) - The ZyXEL Device sends your call to a VoIP
service provider’s SIP server which forwards your calls to either VoIP or PSTN phones.