Chapter 19 Voice
NR/FWA Indoor Series User’s Guide
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19.2 Voice Mode
Use this screen to enable VoIP or VoLTE services on the Zyxel Device. To access this screen, click Voice >
Voice Mode.
Figure 151 Voice > Voice Mode
The following table describes the labels in this screen.
19.2.1 What You Need to Know About VoIP
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).
SIP
SIP stands for Session Initiation Protocol. SIP is a signaling standard that lets one network device (like a
computer or the Zyxel Device) send messages to another. In VoIP, these messages are about phone
calls over the network. For example, when you dial a number on your Zyxel Device, it sends a SIP
message over the network asking the other device (the number you dialed) to take part in the call. To
access this screen, click VoiceVoIP > SIP.
SIP Accounts
A SIP account is a type of VoIP account. It is an arrangement with a service provider that lets you make
phone calls over the Internet. When you set the Zyxel Device to use your SIP account to make calls, the
Zyxel Device is able to send all the information about the phone call to your service provider on the
Internet.
Table 94 Voice > Voice Mode
LABEL DESCRIPTION
Configuration
Voice Service Select Enable to activate VoIP or VoLTE on the Zyxel Device.
Apply Click Apply to save the settings.
Cancel Click Cancel to start configuring this screen again.
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