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Page 231 / 424 Scroll up to view Page 226 - 230
Chapter 16 VoIP
P-2612HNU-Fx User’s Guide
231
Echo Cancellation
G.168 is an ITU-T standard for eliminating the echo caused by the sound of your
voice reverberating in the telephone receiver while you talk.
Use this screen to maintain basic information about each SIP account. You can
also enable and disable each SIP account, configure the volume, echo cancellation
and VAD (Voice Activity Detection) settings for each individual phone port on the
ZyXEL Device.
How to Find Out More
See
Chapter 3 on page 37
for a tutorial showing how to set up these screens in an
example scenario.
See
Section 16.9 on page 247
for advanced technical information on SIP.
16.1.3
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 ZyXEL Device.
16.2
The SIP Service Provider Screen
Use this screen to configure the SIP server information, QoS for VoIP calls, the
numbers for certain phone functions and dialing plan. Click
VoIP > SIP
to open
the
SIP Service Provider
screen.
Note: Click
more...
to see all the fields in the screen. You don’t necessarily need to
use all these fields to set up your account. Click
hide more
to see and
configure only the fields needed for this feature.
Page 232 / 424
Chapter 16 VoIP
P-2612HNU-Fx User’s Guide
232
Figure 92
VoIP > SIP > SIP Service Provider
Page 233 / 424
Chapter 16 VoIP
P-2612HNU-Fx User’s Guide
233
The following table describes the labels in this screen.
Table 57
VoIP > SIP > SIP Service Provider
LABEL
DESCRIPTION
SIP Service Provider Selection
Service
Provider
Selection
Select the SIP service provider profile you want to use for the SIP
account you configure in this screen. If you change this field, the screen
automatically refreshes. If you want to configure a new service
provider, select
Add New
.
General
SIP Service
Provider
Select this if you want the ZyXEL Device to use this SIP provider. Clear
it if you do not want the ZyXEL Device to use this SIP provider.
SIP Service
Provider Name
Enter the name of your SIP service provider.
SIP Local Port
Enter the ZyXEL Device’s listening port number, if your VoIP service
provider gave you one. Otherwise, keep the default value.
SIP Server
Address
Enter the IP address or domain name of the SIP server provided by
your VoIP service provider. You can use up to 95 printable ASCII
characters. It does not matter whether the SIP server is a proxy,
redirect or register server.
SIP Server Port
Enter the SIP server’s listening port number, if your VoIP service
provider gave you one. Otherwise, keep the default value.
REGISTER
Server Address
Enter the IP address or domain name of the SIP register server, if your
VoIP service provider gave you one. Otherwise, enter the same address
you entered in the
SIP Server Address
field. You can use up to 95
printable ASCII characters.
REGISTER
Server Port
Enter the SIP register server’s listening port number, if your VoIP
service provider gave you one. Otherwise, enter the same port number
you entered in the
SIP Server Port
field.
SIP Service
Domain
Enter the SIP service domain name. In the full SIP URI, this is the part
after the @ symbol.
You can use up to 127 printable ASCII Extended
set characters.
RTP Port Range
Start Port
End Port
Enter the listening port number(s) for RTP traffic, if your VoIP service
provider gave you this information. Otherwise, keep the default values.
To enter one port number, enter the port number in the
Start Port
and
End Port
fields.
To enter a range of ports,
•
enter the port number at the beginning of the range in the
Start
Port
field.
•
enter the port number at the end of the range in the
End Port
field.
Page 234 / 424
Chapter 16 VoIP
P-2612HNU-Fx User’s Guide
234
DTMF Mode
Control how the ZyXEL Device handles the tones that your telephone
makes when you push its buttons. You should use the same mode your
VoIP service provider uses.
RFC2833
- send the DTMF tones in RTP packets.
PCM
- send the DTMF tones in the voice data stream. This method
works best when you are using a codec that does not use compression
(like G.711). Codecs that use compression (like G.729 and G.726) can
distort the tones.
SIP INFO
- send the DTMF tones in SIP messages.
Transport Type
Transport Type
Select the transport layer protocol (
TCP
,
UDP
or
TCP
) used for SIP.
FAX Option
This field controls how the ZyXEL Device handles fax messages.
G711 Fax
Passthrough
Select this if the ZyXEL Device should use G.711 to send fax messages.
The peer devices must also use G.711.
T38 Fax Relay
Select this if the ZyXEL Device should send fax messages as UDP or
TCP/IP packets through IP networks. This provides better quality, but it
may have inter-operability problems. The peer devices must also use
T.38.
Outbound Proxy
Enable
Select this if your VoIP service provider has a SIP outbound server to
handle voice calls. This allows the ZyXEL Device to work with any type
of NAT router and eliminates the need for STUN or a SIP ALG. Turn off
any SIP ALG on a NAT router in front of the ZyXEL Device to keep it
from re-translating the IP address (since this is already handled by the
outbound proxy server).
Server Address
Enter the IP address or domain name of the SIP outbound proxy server.
Server Port
Enter the SIP outbound proxy server’s listening port, if your VoIP
service provider gave you one. Otherwise, keep the default value.
QoS Tag
SIP TOS Priority
Setting
Enter the DSCP (DiffServ Code Point) number for SIP message
transmissions. The ZyXEL Device creates Class of Service (CoS) priority
tags with this number to SIP traffic that it transmits.
RTP TOS
Priority Setting
Enter the DSCP (DiffServ Code Point) number for RTP voice
transmissions. The ZyXEL Device creates Class of Service (CoS) priority
tags with this number to RTP traffic that it transmits.
Timer Setting
Expiration
Duration
Enter the number of seconds your SIP account is registered with the
SIP register server before it is deleted. The ZyXEL Device automatically
tries to re-register your SIP account when one-half of this time has
passed. (The SIP register server might have a different expiration.)
Register Re-
send timer
Enter the number of seconds the ZyXEL Device waits before it tries
again to register the SIP account, if the first try failed or if there is no
response.
Session Expires
Enter the number of seconds the ZyXEL Device lets a SIP session
remain idle (without traffic) before it automatically disconnects the
session.
Table 57
VoIP > SIP > SIP Service Provider (continued)
LABEL
DESCRIPTION
Page 235 / 424
Chapter 16 VoIP
P-2612HNU-Fx User’s Guide
235
16.3
The SIP Account Screen
The ZyXEL 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 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 ZyXEL Device to connect to your VoIP service provider.
See
Section 16.6 on page 243
for how to map a SIP account to a phone port.
To access the following screen, click
VoIP > SIP > SIP Account
.
Figure 93
VoIP > SIP > SIP Account
Min-SE
Enter the minimum number of seconds the ZyXEL Device lets a SIP
session remain idle (without traffic) before it automatically disconnects
the session. When two SIP devices start a SIP session, they must agree
on an expiration time for idle sessions. This field is the shortest
expiration time that the ZyXEL Device accepts.
Dialing Interval Selection
Dialing Interval
Selection
Enter the number of seconds the ZyXEL Device should wait after you
stop dialing numbers before it makes the phone call. The value depends
on how quickly you dial phone numbers.
Bound Interface Name
Bound Interface
Name
If you select
LAN
or
AnyWAN
, the ZyXEL Device automatically
activates the VoIP service when any LAN or WAN connection is up.
If you select
MultiWAN
, you also need to select the pre-configured
WAN connections. The VoIP service is activated only when the selected
WAN connection is up.
Apply
Click
Apply
to save your changes.
Cancel
Click
Cancel
to restore your previously saved settings.
Table 57
VoIP > SIP > SIP Service Provider (continued)
LABEL
DESCRIPTION

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