Before You Begin; Voip General Screen - ZyXEL Communications LTE3311 series User Manual

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 LTE3311 to use your SIP account to make
calls, the LTE3311 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 LTE3311)
to call another without involving a SIP service provider. However, the networking difficulties
involved in doing this make it tremendously 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.
How to Find Out More
See Section 17.8 on page 127

17.2 Before You Begin

• Before you can use these screens, you need to have a VoIP account already set up. If you don't
have one yet, you can sign up with a VoIP service provider over the Internet.
• You should have the information your VoIP service provider gave you ready, before you start to
configure the LTE3311.

17.3 VoIP General Screen

Use this screen to enable VoIP and configure general VoIP settings on the LTE3311. To access this
screen, click Application > Voice over IP > General.
Figure 75 Application > Voice over IP > General
Chapter 17 Voice over IP
for advanced technical information on SIP.
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