Sip; Sip Account - ZyXEL Communications LTE Series User Manual

Figure 157 Voice > Voice Mode
The following table describes the labels in this screen.
Table 82 Voice > Voice Mode
LABEL
Configuration
Voice Service
Apply
Cancel

17.3 SIP

SIP stands for Session Initiation Protocol. SIP is a signalling 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 Voice > SIP.

17.3.1 SIP Account

You can make calls over the Internet using VoIP technology. For this, you first need to set up a SIP
account with a SIP service provider. The Zyxel Device uses a SIP account to make outgoing VoIP calls,
and to check if an incoming call's destination number matches your SIP account's VoIP number. In
order to make and receive VoIP calls, you need to enable and configure a SIP account, and then map
it to a phone port. The SIP account contains information that allows your Zyxel Device to connect to your
VoIP service provider.
To access this screen, click Voice > SIP > SIP Account.
Chapter 17 Voice
DESCRIPTION
Select Enable to activate VoIP or VoLTE on the Zyxel Device.
Click Apply to save the settings.
Click Cancel to start configuring this screen again.
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