What You Need To Know - Huawei B2368 User Manual

LTE CPE B2368
User Guide

15.1.1 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).
SIP
SIP stands for Session Initiation Protocol. SIP is a signaling standard that lets one network
device (like a computer or the LTE 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 LTE
Device, it sends a SIP message over the network asking the other device (the number you
dialed) to take part in the call.
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 LTE Device to use your SIP
account to make calls, the LTE Device is able to send all the information about the phone call
to your service provider on the Internet.
Strictly speaking, you don't need a SIP account. It is possible for one SIP device (like the LTE
Device) to call another without involving a SIP service provider. However, the networking
difficulties involved in doing this make it impractical under normal circumstances. Your SIP
account provider removes these difficulties by taking care of the call routing and setup -
figuring out how to get your call to the right place in a way that you and the other person can
talk to one another.
Issue 03 (2019-01-31)
Figure 15-1 Static Route for Voice Example
Copyright © Huawei Technologies Co., Ltd.
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