ZyXEL V630 User Guide - Page 29
Introducing the V630, 1.1 Overview, 1.1.1 Making Calls via Internet Telephony Service Provider
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CHAPTER 1 Introducing the V630 This chapter introduces the main applications and features of the V630. It also introduces the ways you can manage the V630. 1.1 Overview The V630 is a wireless IP phone that allows you to use a wireless network connection to make and receive phone calls over the Internet. Sending voice signals over the Internet is called Voice over IP (VoIP). VoIP allows you to call other IP phones, mobile phones or landlines all over the world. The V630 allows you to make and receive VoIP calls as long you are within range of an IEEE 802.11b or IEEE 802.11g enabled wireless network. The V630 uses WMM (Wi-Fi MultiMedia) QoS (Quality of Service) to help ensure the sound quality of your calls. The V630 is packed with features - including multiple SIP accounts, phonebook, conference calls, call transfer, call hold, and others. You can configure and manage the V630 directly, using its multi-function keypad and LCD screen. Access the internal web configurator using a computer connected to the network to upgrade firmware. 1.1.1 Making Calls via Internet Telephony Service Provider When you have a (IEEE 802.11b) wireless connection to the Internet, you can use the Prestige to make and receive VoIP telephone calls through an Internet Telephony Service Provider's (ITSP) call server. You don't need to know if the recipient's connection type is an IP, cellular or land line based service. Your Prestige can call any land line or mobile telephone that a traditional PSTN telephone can connect to as well the IP telephone network. Calls received from IP telephones works exactly as you would expect from the traditional telephone service. The following figure shows a basic example of how you make a VoIP call through an ITSP. In this example, you make a call from your V630, which sends the call through your Internet connection to the ITSP's SIP server (A). The VoIP call server forwards calls to IP phones (B) through the Internet. The VoIP call server also forwards calls to PSTN (Public Switched Telephone Network) phones through a trunking gateway (C) to phones on the PSTN network (D). V630 User's Guide 29