Zyxel VMG8324-B10A Router Manual PDF (Setup & Configuration Guide)

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Chapter 21 Voice

VMG8324-B10A / VMG8324-B30A Series User’s Guide

236

21.1.2

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 signalling standard that lets one network device

(like a computer or the 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 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 Device to use your SIP account to make

calls, the 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 Device) 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 37

for a tutorial showing how to set up these screens in an example

scenario.

See

Section 21.10 on page 252

for advanced technical information on SIP.

21.2

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 Device.

21.3

The SIP Account Screen

The Device 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

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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 Device to connect to your VoIP service provider.

See

Section 21.3.1 on page 237

for how to map a SIP account to a phone port.

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 143

VoIP > SIP > SIP Account

Each field is described in the following table.

21.3.1

The SIP Account Add/Edit Screen

Use this screen to configure a SIP account and map it to a phone port. To access this screen, click

the

Add new account

button or click the

Edit

icon of an entry in the

VoIP > SIP > SIP Account

screen.

Table 111

VoIP > SIP > SIP Account

LABEL

DESCRIPTION

Add new account

Click this to configure a SIP account.

This is the index number of the entry.

Active

This shows whether the SIP account is activated or not.

A yellow bulb signifies that this SIP account is activated. A gray bulb signifies that this SIP

account is not activated.

SIP Account

This shows the name of the SIP account.

Service Provider

This shows the name of the SIP service provider.

Account No.

This shows the SIP number.

Modify

Click the

Edit

icon to configure the SIP account.

Click the

Delete

icon to delete this SIP account from the Device.

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Note: Click

to see all the fields in the screen. You don’t necessarily need to use all

these fields to set up your account. Click

less

to see and configure only the fields

needed for this feature.

Figure 144

VoIP > SIP > SIP Account > Add new accoun/Edit

Each field is described in the following table.

Table 112

VoIP > SIP > SIP Account > Add new accoun/Edit

LABEL

DESCRIPTION

SIP Account

Selection

This field displays

ADD_NEW

if you are creating a new SIP account or the SIP

account you are modifying.

SIP Service

Provider

Association

Select the SIP service provider profile to use for the SIP account you are

configuring in this screen. This field is read-only when you are modifying a SIP

account.

General

Enable SIP

Account

Select this if you want the Device to use this account. Clear it if you do not want

the Device to use this account.

SIP Account

Number

Enter your SIP number. In the full SIP URI, this is the part before the @ symbol.

You can use up to 127 printable ASCII characters.

Authentication

Username

Enter the user name for registering this SIP account, exactly as it was given to

you. You can use up to 95 printable ASCII characters.

Password

Enter the user name for registering this SIP account, exactly as it was given to

you. You can use up to 95 printable ASCII Extended set characters.

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Apply To Phone

Select a phone port on which you want to make or receive phone calls for this

SIP account.

If you map a phone port to more than one SIP account, there is no way to

distinguish between the SIP accounts when you receive phone calls. The Device

uses the most recently registered SIP account first when you make an outgoing

call.

If a phone port is not mapped to a SIP account, you cannot receive or make any

calls on the phone connected to this phone port.

more/less

Click

to display and edit more information for the SIP account. Click

less

to display and configure the basic SIP account settings.

URI Type

Select whether or not to include the SIP service domain name when the Device

sends the SIP number.

SIP

- include the SIP service domain name.

TEL

- do not include the SIP service domain name.

Voice Features

Primary

Compression Type

Secondary

Compression Type

Third

Compression Type

Select the type of voice coder/decoder (codec) that you want the Device to use.

G.711 provides high voice quality but requires more bandwidth (64 kbps). G.711

is the default codec used by phone companies and digital handsets.

•

G.711a

is typically used in Europe.

•

G.711u

is typically used in North America and Japan.

G.726-24

operates at

kbps.

G.726-32

operates at

kbps.

G.722

is a 7 KHz wideband voice codec that operates at 48, 56 and 64 kbps. By

using a sample rate of 16 kHz, G.722 can provide higher fidelity and better audio

quality than narrowband codecs like G.711, in which the voice signal is sampled

at 8 KHz.

The Device must use the same codec as the peer. When two SIP devices start a

SIP session, they must agree on a codec.

Select the Device’s first choice for voice coder/decoder.

Select the Device’s second choice for voice coder/decoder. Select

None

if you

only want the Device to accept the first choice.

Select the Device’s third choice for voice coder/decoder. Select

None

if you only

want the Device to accept the first or second choice.

Speaking Volume

Control

Select the loudness that the Device uses for speech that it sends to the peer

device.

-12

is the quietest, and

is the loudest.

Listening Volume

Control

Select the loudness that the Device uses for speech that it receives from the

peer device.

-12

is the quietest, and

is the loudest.

Enable G.168

(Echo

Cancellation)

Select this if you want to eliminate the echo caused by the sound of your voice

reverberating in the telephone receiver while you talk.

Enable VAD

(Voice Active

Detector)

Select this if the Device should stop transmitting when you are not speaking.

This reduces the bandwidth the Device uses.

Call Features

Table 112

VoIP > SIP > SIP Account > Add new accoun/Edit (continued)

LABEL

DESCRIPTION

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Send Caller ID

Select this if you want to send identification when you make VoIP phone calls.

Clear this if you do not want to send identification.

Enable Call

Transfer

Select this to enable call transfer on the Device. This allows you to transfer an

incoming call (that you have answered) to another phone.

Enable Call

Waiting

Select this to enable call waiting on the Device. This allows you to place a call on

hold while you answer another incoming call on the same telephone number.

Call Waiting

Reject Timer

Specify a time of seconds that the Device waits before rejecting the second call if

you do not answer it.

Enable

Unconditional

Forward

Select this if you want the Device to forward all incoming calls to the specified

phone number.

Specify the phone number in the

To Number

field on the right.

Enable Busy

Forward

Select this if you want the Device to forward incoming calls to the specified

phone number if the phone port is busy.

Specify the phone number in the

To Number

field on the right.

If you have call waiting, the incoming call is forwarded to the specified phone

number if you reject or ignore the second incoming call.

Enable No Answer

Forward

Select this if you want the Device to forward incoming calls to the specified

phone number if the call is unanswered. (See

No Answer Time

Specify the phone number in the

To Number

field on the right.

No Answer Time

This field is used by the

Active No Answer Forward

feature.

Enter the number of seconds the Device should wait for you to answer an

incoming call before it considers the call is unanswered.

Enable Do Not

Disturb

Select this to set your phone to not ring when someone calls you.

Enable

Anonymous Call

Block

Select this if you do not want the phone to ring when someone tries to call you

with caller ID deactivated.

Enable Call

Completion on

Busy Subscriber

(CCBS)

When you make a phone call but hear a busy tone, Call Completion on Busy

Subscriber (CCBS) allows you to enable auto-callback by pressing 5 and hanging

up the phone. The Device then tries to call that phone number every minute

since after you hang up the phone. When the called party becomes available

within the CCBS timeout period (60 minutes by default), both phones ring.

•

If the called party’s phone rings because of CCBS but no one answers the

phone after 180 seconds, you will hear a busy tone.

You can enable CCBS on

the called number again.

•

If you manually call the number on which you have enabled CCBS before the

CCBS timeout period expires, the Device disables CCBS on the called

number.

•

If you call a second number before the first called number’s CCBS timeout

period expires, the Device stops calling the first number until you finish the

second call.

Select this option to activate CCBS on the Device.

MWI (Message

Waiting

Indication)

Select this if you want to hear a waiting (beeping) dial tone on your phone when

you have at least one voice message. Your VoIP service provider must support

this feature.

Expiration Time

Keep the default value for this field, unless your VoIP service provider tells you to

change it. Enter the number of seconds the SIP server should provide the

message waiting service each time the Device subscribes to the service. Before

this time passes, the Device automatically subscribes again.

Hot Line / Warm

Line Enable

Select this to enable the hot line or warm line feature on the Device.

Table 112

VoIP > SIP > SIP Account > Add new accoun/Edit (continued)

LABEL

DESCRIPTION

Rate

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