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Chapter 20 Voice
calls over the network. For example, when you dial a number on your VMG, 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 VMG to use your SIP account to make calls,
the VMG 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 VMG) 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
Chapter 4 on page 33
scenario.
See
Section 20.7 on page 211
20.2 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 VMG.
20.3 The SIP Account Screen
The VMG uses a SIP account to make outgoing VoIP calls and check if an incoming call's destination
number matches your SIP account's SIP number. In order to make or receive a VoIP call, you need
to enable and configure a SIP account, and map it to a phone port. The SIP account contains
information that allows your VMG to connect to your VoIP service provider.
See
Section 20.3.1 on page 203
Use this screen to view SIP account information. You can also enable and disable each SIP account.
To access this screen, click VoIP > SIP > SIP Account.
Figure 98 VoIP > SIP > SIP Account
202
for a tutorial showing how to set up these screens in an example
for advanced technical information on SIP.
for how to map a SIP account to a phone port.
VMG5313-B10A/-B30A Series User's Guide
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