ZyXEL Communications EMG5324-D10A ユーザーズマニュアル

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EMG5324-D10A User’s Guide
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VoIP
18.1  Overview
Use this chapter to:
• Connect an analog phone to the Device.
• Make phone calls over the Internet, as well as the regular phone network.
• Configure settings such as speed dial.
• Configure network settings to optimize the voice quality of your phone calls.
18.1.1  What You Can Do in this Chapter
These screens allow you to configure your Device to make phone calls over the Internet and your 
regular phone line, and to set up the phones you connect to the Device.
• Use  the  SIP Service Provider screen to configure the SIP server information, QoS for VoIP 
calls, the numbers for certain phone functions (
). 
• Use  the  SIP Account screen to set up information about your SIP account, control which SIP 
accounts the phones connected to the Device use and configure audio settings such as volume 
levels for the phones connected to the ZyXEL Device (
• Use  the  Phone Device screen to control which SIP accounts the phones connected to the Device 
• Use  the  Region screen to change settings that depend on the country you are in (
).
• Use  the  Call Rule screen to set up shortcuts for dialing frequently-used (VoIP) phone numbers 
(
You don’t necessarily need to use all these screens to set up your account. In fact, if your service 
provider did not supply information on a particular field in a screen, it is usually best to leave it at 
its default setting.
18.1.2  What You Need to Know
The following terms and concepts may help as you read this chapter.
VoIP
VoIP stands for Voice over IP. IP is the Internet Protocol, which is the message-carrying standard 
the Internet runs on. So, Voice over IP is the sending of voice signals (speech) over the Internet (or 
another network that uses the Internet Protocol).