D-Link DVG-5112S User manual

DVG-5112S
VoIP Gateway
User’s Manual
Version 0.0
(31 Aug 2007)

© 2007 D-Link Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of D-Link Corporation is strictly
forbidden.
Trademarks used in this text: D-Link and the D-Link logo are trademarks of D-Link Corporation/D-Link
Systems Inc.; Other trademarks and trade names may be used in this document to refer to either the entities
claiming the marks and names or their products. D-Link Corporation disclaims any proprietary interest in
trademarks and trade names other than its own.
Warranty: please contact your D-Link Authorized Reseller or the D-Link Branch Office nearest your place of
purchase for information about the warranty offered on your D-Link product.
Information in this document is subject to change without notice.
FCC Warning
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to
Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communication. However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
‧Reorient or relocate the receiving antenna.
‧Increase the separation between the equipment and receiver.
‧Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
‧Consult the dealer or an experienced radio/TV technician for help.
CE Mark Warning
This is a Class B product. In a domestic environment, this product may cause radio interference in which case
the user may be required to take adequate measures.
Warnung!
Dies ist ein Produkt der Klasse B. Im Wohnbereich kann dieses Produkt Funkstoerungen verursachen. In
diesem Fall kann vom Benutzer verlangt werden, angemessene Massnahmen zu ergreifen.
Precaución!
Este es un producto de Clase B. En un entorno doméstico, puede causar interferencias de radio, en cuyo
case, puede requerirse al usuario para que adopte las medidas adecuadas.
Attention!
Ceci est un produit de classe B. Dans un environnement domestique, ce produit pourrait causer des
interférences radio, auquel cas l`utilisateur devrait prendre les mesures adéquates.
Attenzione!
Il presente prodotto appartiene alla classe B. Se utilizzato in ambiente domestico il prodotto può causare
interferenze radio, nel cui caso è possibile che l`utente debba assumere provvedimenti adeguati.

Contents
1. Introduction....................................................................................................5
Product Overview..........................................................................................................................................5
Hardware Connections and Description .......................................................................................................6
DVG-5112S ........................................................................................................................................6
2. Installation and Applications........................................................................8
DVG-5112S Assigned with a Public IP Address............................................................................................8
DVG-5112S in a NAT network.......................................................................................................................9
DVG-5112S assigned with a Public IPAddress and serving as a Bridge...................................................10
3. Setting a DVG-5112S with WEB Browser ..................................................11
Basic Network Settings ...............................................................................................................................12
WAN .................................................................................................................................................12
SIP....................................................................................................................................................16
Phone Book......................................................................................................................................21
Basic Voice Services...................................................................................................................................23
Caller ID............................................................................................................................................23
Hot Line............................................................................................................................................24
Calling Features...............................................................................................................................25
Calling Features - Advanced Setting................................................................................................27
Advanced Network Settings........................................................................................................................28
LAN...................................................................................................................................................28
NAT Traversal...................................................................................................................................31
DDNS ...............................................................................................................................................32
Caller Filter.......................................................................................................................................33
PPTP Client......................................................................................................................................33
SIPAdvanced...................................................................................................................................34
Virtual Server....................................................................................................................................38
DMZ..................................................................................................................................................38
Port Filtering.....................................................................................................................................39
IP Filtering ........................................................................................................................................40
Advanced Voice Services............................................................................................................................41
Line Settings.....................................................................................................................................41
Codec Settings.................................................................................................................................44
FAX Settings.....................................................................................................................................45
Other Settings .............................................................................................................................................46
Digit Map ..........................................................................................................................................46
DTMF & Pulse..................................................................................................................................51
CPT/Cadence Settings.....................................................................................................................53
Provision Settings.............................................................................................................................54
Status and Tools..........................................................................................................................................56
Current Status...................................................................................................................................56
RTP Packet Summary......................................................................................................................56
System Information ..........................................................................................................................57
Ping Test...........................................................................................................................................58
STUN Inquiry....................................................................................................................................58
System Settings ..........................................................................................................................................59
NTP ..................................................................................................................................................59
Login Account...................................................................................................................................59
Backup/Restore................................................................................................................................60
System Operations...........................................................................................................................61
Software Upgrade.............................................................................................................................62
Logout...............................................................................................................................................62

4. Setting the DVG-5112S through IVR ..........................................................63
IVR (Interactive Voice Response)...............................................................................................................63
IP Configuration Settings—Setting IP Configuration of WAN Port...................................................66
PPPoE Character Conversion Table...........................................................................................................68
5. TCP/IP Setting..............................................................................................69

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1. Introduction
Product Overview
The DVG-5112S VoIP Gateway carries both voice and facsimile over the IP network. It uses the industry standard
SIP call control protocol so as to be compatible with free registration services or VoIP service providers’ systems.
As a standard user agent, it is compatible with all common Soft Switches and SIP proxy servers. While running
optional server software, the gateway can be configured to establish a private VoIP network over the Internet
without a third-party SIP Proxy Server.
The gateway can be seamlessly integrated into an existing network by connecting to a phone set and fax
machine. With only a broadband connection such as an ADSL bridge/router, a Cable Modem or a leased-line
router, the gateway allows you to use voice and fax services over IP in order to reduce the cost of all long
distance calls.
DDNS support makes the gateway reachable via its domain name where an ISP dynamically assigns an IP
address. By enabling the CDR function, administrators are allowed to log-in and view all call records, for example
call duration, time and date of calls, and latency.
The gateway can be assigned a fixed IP address or it can have one dynamically assigned by DHCP over PPPoE.
It adopts either the G.711, G.726, G.729A or G.723.1 voice compression format to save network bandwidth while
providing real-time, toll quality voice transmission and reception.

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Hardware Connections and Description
DVG-5112S
1. DC+12V: Connect to the bundled power adaptor. Plug power adapter to a proper power source.
2. Phone: Connect to your analog telephone. These are FXS (Foreign Exchange Station) ports.
3. LAN: Connect to a PC for later DVG-5112S configuration.
4. WAN: Connect to your broadband device with RJ-45 cable.

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Front Panel
yPower/Alarm Indicator: Green light indicates a normal power supply. Red
light indicates when performing a self-test/booting up or the DVG-5112S’s
abnormal operation.
yVoIP Indicator: Blinking green light indicates normal operation. It will light
on green when DVG-5112S is registered with the service provider.
yPhone1/Line, Phone2 Indicator: Phone LED should be in orange while
Phone in use.
Note: When starting up DVG-5112S, the Alarm and VoIP will light up. After about 40 seconds, the VoIP
indicator will blink in green. If the Alarm indicator continues to blink, it means DVG-5112S is
currently communicating with ISP and has yet to obtain an IP address or fail to register to Voice
Service Provider.
Left Side
yRST: Use to Restore to factory default: (IP address, Administrator's Name and Password)
(1) Disconnect the power plug.
(2) Press and hold the reset button for 6 seconds.
(3) Reconnect the power plug while pressing down on the reset button.
(4) Release the reset button after 6 seconds. Factory settings will be restored.

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2. Installation and Applications
The network interface is divided into three basic modes as described below:
yDVG-5112S can be assigned with a Public IP Address
yDVG-5112S can be built under the existing NAT
yDVG-5112S can be assigned with a Public IP address and serves as a Bridge device
DVG-5112S Assigned with a Public IP Address
DVG-5112S will have a Public IP address for Internet connection regardless of whether it is a static IP
address, DHCP (using a Cable Modem), or PPPoE (Dialup / ADSL).
DVG-5112S IP Settings Need to be set up as static IP,
DHCP, or PPPoE
NAT/STUN Settings Unnecessary (Disabled)
DDNS Settings Unnecessary (Disabled)
Leased Line/ ADSL
/Cable Modem
VSP
(Voice Service Provider)

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DVG-5112S in a NAT network
Under this mode, the gateway uses a virtual IP address and the IP sharing function of other systems to
connect to the Internet.
LAN IP address for IP sharing Please avoid IP addresses in the following range:
192.168.8.1-192.168.8.254 (You may need to change the settings of
IP sharing or change SIP series gateway LAN Port IP addressing)
DVG-5112S IP Settings Set as static IP address, and assign the LAN IP address of the IP
sharing to the Default Gateway.
If the WAN of the IP sharing device has a static IP address,
then the NAT IP address is set as the Public IP address for
IP sharing.
NAT /STUN Settings
(Please refer to page 14 for
information on using NAT.)
Enable
If the WAN of the IP sharing device uses a dynamic IP
address, then the gateway has to comply with the DDNS
settings. When using NAT, you must enter the URL
(Uniform Resource Locator) that is registered to the DDNS
server.
The WAN of the IP
sharing device has a
static IP address. Disabled
DDNS Settings
(Please refer to page 14 for
information on DDNS settings.) The WAN of the IP
sharing device has a
dynamic IP address.
Enabled: enter the registered URL (Uniform
Resource Locator) into the network settings
under NAT
Leased Line/ ADSL
/Cable Modem
VSP
Router/
IP Sharing

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DVG-5112S assigned with a Public IP Address and serving
as a Bridge
DVG-5112S will have a public IP address regardless of whether it is a static IP application, DHCP (using a
Cable Modem), or PPPoE (to connect to your ADSL account), which can then use the functions of built-in IP
sharing to allow other PCs to be on-line at the same time.
DVG-5112S IP Settings Need to be set up as static IP, DHCP, or PPPoE
NAT/STUN Settings Unnecessary (Disabled)
DDNS Settings Unnecessary (Disabled)
PC IP Address Settings
(for IP sharing through the
gateway)
PCs should use a static IP address in the
following range : 192.168.8.1-192.168.8.253
Subnet Mask : 255.255.255.0
Default Gateway : 192.168.8.254
Leased Line/ ADSL
/Cable Modem
VSP
61.23.45.67 61.23.45.69

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3. Setting a DVG-5112S with WEB Browser
DVG-5112S allows users to configure its settings using a web interface (Web UI). You can access the
Configuration Menu by opening a web-browser (e.g., Internet Explorer or Netscape Navigator) and entering the
factory default LAN IP address: 192.168.8.254. The IP address of the Web UI is same as the default LAN IP
noted elsewhere in this user’s manual.
You can also use an ordinary telephone, connect it to the gateway, and dial ”101” to inquire about the current
WAN Port IP address and then use the WAN port to log-in.
Instructions
yOpen a Web-Browser (e.g., Explorer, Navigator, Opera, Firefox).
yEnter the LAN port IP address. The default LAN port IP address is: 192.168.8.254.
yThe log-in screen below will appear after you connect. (The factory default settings for Login ID and
Password are blank (i.e., no login ID, no password).)
DVG-5112S does not allow multiple people to configure the gateway simultaneously. Please remember to
logout or restart the system if you are not using the web configuration function.

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Basic Network Settings
WAN
WAN Configuration includes the method of obtaining IP, the setting of DNS (Domain Name Server), etc.
yCurrent WAN IP Address: The IP address of the WAN port.
yListen Port UDP: It is not necessary to change the protocol of the communication port used by the
gateway, unless it conflicts with ports used by another device in your network.
yRTP Starting Port UDP: The initial value of the port number for transmitting voice data among
gateway(s). Each line requires 2 ports. For the DVG-5112S gateway 4 UDP ports are required. It is not
necessary to change the setting, unless it conflicts with ports used by another network device.
For example, if the starting port is 9000, then Line 1 is using ports 9000 and 9001, and Line 2 is using
ports 9002 and 9003.

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IP Configuration
There are five methods of obtaining a WAN port IP address:
1. Static IP
2. DHCP, which means a Dynamic IP (Cable Modem)
3. PPPoE (dial-up ADSL)
4. PPTP
5. BigPond (for Australia only)
Methods for using DHCP and PPPoE for obtaining an IP address may vary. If you are not familiar with
creating a network connection, please contact your local ISP.
Setting Dynamic IP (DHCP)
Click “DHCP” to obtain a Dynamic IP address, and then click the “Accept” button at the bottom of the screen.
Saving the settings: Click System Operation to select “Save Settings”, “Restart”, and then click the ”Accept”
button. Wait for about 40 seconds, and the system will obtain the rquired IP value from the DHCP Server.
NOTE: After the system has obtained a new IP address, if you are using a WAN port to enter the
Web Configuration Screen, the new IP address has to be used. The same principle applies to the
next two settings.
Setting Static IP
Select “Static IP” and enter the IP address, Subnet Mask and Default Gateway values. Then click the
“Accept” button at the bottom of the screen. Save the settings, and then restart the system. Wait for about
40 seconds for the system to restart.
ADSL PPPoE Settings
Select “PPPoE” and enter the Account Number, Password and Reenter Password to confirm. Then click the
“Accept” button at the bottom of the screen. Save the settings, and then restart the system. The system will
take about 49 seconds to restart.

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PPTP
Select “PPTP” and enter the IP Address, Subnet mask, PPTP Server, PPTP ID and Password. Then click
the “Accept” button at the bottom of the screen.
BigPond (for Australia only)
Click “BigPond Cable” and enter the User Name and Password. Then click the “Accept” button at the
bottom of the screen.
(DNS) Settings
Domain Name Server (DNS): While a gateway is accessing another gateway or a computer with a
hostname, it will look up the IP address from the DNS provided by your ISP. Normally, the ISP assigns DNS
information while negotiating with PPPoE or DHCP. If the DNS is not assigned automatically or the WAN
port is assigned a static IP address, the DNS settings must be assigned manually.
Auto: the gateway learns primary and secondary addresses from the ISP’s DHCP server or PPPoE server.
Manual: enter the primary and secondary addresses manually. Please be sure that the IP addresses are
correct otherwise the gateway will not be able to access hosts using hostnames instead of IPs.
VLAN
It is optional. It works with the Router or Switch that supports VLAN.
Note: Please do not change anything here unless requested by your ISP.

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Item Description
Enable VLAN Tagging It is to tag the packets for VLAN Router or Switch identifying.
VLAN ID It is to assign uniquely a user-defined ID to each packet.
Priority It is the proprietary to VLAN Router or Switch.
WAN QoS
yQoS (Quality of Service): Sets true bandwidth of your Internet connection to ensure sound quality
during transmission. (When this function is enabled, voice packets have the highest priority to ensure
telecommunication quality while less bandwidth is assigned for data transmission.) Some models of
the VoIP gateway without this function will adjust bandwidth automatically.
yToS/DiffServ (Type of Service/DSCP): Voice packets have the highest priority to ensure
telecommunication quality; the larger the value you set, the higher the priority.
NOTE: Please contact your ISP when you configure these values.
Clone MAC
Some Internet Service Providers (ISPs) assign bandwidth via MAC (Media Access Control) addresses. You
can click the "Clone" button to type in a MAC address which will be recognized by your ISP. It is only
necessary to fill in the field if it is required by your ISP.
The “Your MAC Address” field will be blank as you log-in via the WAN port.

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SIP
In this section, you should have one or more VoIP service accounts from VoIP service provider and enter the
related parameters of VoIP service provider.
Accounts Settings
Assuming that your registered ID and password are individual, the settings should be as above.
yFXS Representative Number: Register all FXS ports as a hunting group.
yRegister: Register to proxy if selected.
yInvite with ID / Account: The DVG-5112S can be invited to a VoIP trunk gateway without registering
to a proxy. Please contact your VoIP service provider.
NOTE: Please contact your VoIP provider about whether they can provide representative numbers to
allow you to use them for more than one FXS ports. FXS representative numbers should be different.
yNumber: VoIP phone number
yUser ID/Account: VoIP account Authentication ID or account name
yPassword: password for VoIP account authentication
yInvite with ID / Account: VoIP gateway can be invited to a VoIP trunk gateway without registering with
a proxy. Please contact your VoIP service provider.
As there are various Proxy Server providers, the gateway has been designed to be compatible with as many
SIP VoIP networks as possible using RFC standards. If any kind of registration problem occurs, please
consult your VoIP service provider.
NOTE: When you register with a Proxy Server, dialing principles may vary with different Proxy Servers.
Please consult your VoIP service provider for details.

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zRegistration by each line: If your VoIP account and password are individual, the settings should be as
below.
zRegistration by FXS Representative Number: If you have one VoIP account and password, the
settings should be as below.
DNS SRV Settings
yUse DNS SRV: The gateway asks for the related IP address of SIP Server from the records of DNS
SRV. DNS SRV uses several servers for a single domain for SIP proxy, to move services from host to
host and design some hosts as primary servers (the highest priority) for a service and others as
backups. If the primary server is not reachable, the gateway will go for backup server, and so forth…
yDNS SRV Auto Prefix: This option tells the gateway to send packet with service type when using
DNS SRV.
yProxy Fallback Interval: Set the preferred Proxy Fallback Interval. After the time expires, the
gateway gets back for registration with the primary server.

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Enable Support of SIP Proxy Server / Soft Switch
yEnable Support of SIP Proxy Server / Soft Switch: Enable the functions to inter-work with Proxy
Server / Soft Switch. When SIP Proxy 1 and 2 are enabled, the system will register to SIP Proxy 2
after all lines have failed to register to SIP Proxy 1. SIP Proxy 2 is a backup system.
yProxy Server IP/Domain: Enter the Proxy Server IP address or URL (Uniform Resource Locator).
You can set three redundant Proxy IPs separated by semicolons.
Example: 61.123.231.1;12.34.56.78;proxy.sip.sip
yProxy Server Port: Enter the Proxy Server listen port number. (The default value is 5060)
yProxy Server Realm: This variable is used for gateway SIP account authentication in a SIP server.
In most cases, the gateway can automatically detect your SIP server realm. So you can leave this
option blank. However, if your SIP server requires you to use a specific realm you can manually enter
it here. If you fail to make a call, please contact your VoIP service provider.
yTTL (Registration interval) [10-7200 s]: Enter the desired time interval at which the gateway will
report to your Proxy Server.
ySIP Domain/Use Domain to Register: Enter the correct SIP domain to avoid registration failure (it is
not necessary to set this with some Proxy Servers). If you enable “Uses Domain to Register” the VoIP
gateway will register to the proxy with the domain name you filed. Otherwise the VoIP Gateway will
register to a Proxy with the IP it resolves. If you fail to make a call, please contact your VoIP
service provider.

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Outbound Proxy
yAll Call through OutBound Proxy：An outbound proxy server handles SIP call signaling as a
standard SIP proxy server would. Further, it receives and transmits phone conversation traffic (media)
between two communication parties. This option tells the gateway to send and receive all SIP
packets to the destined outbound proxy server rather than the remote gateway. This helps VoIP calls
to pass through any NAT protected network without additional settings or techniques. Please make
sure your VoIP service provider supports outbound proxy services before you enable it.
E.164
yInternational Call Prefix Digit: Enter the International call prefix.
yCountry Code: Users please select the desired country code.
yLong Distance Call Prefix Digit: The long-distance prefix digit for making a long-distance call.
yArea Code: Please enter the area code.
yE.164 Numbering: This variable invites the proxy to follow the E.164 rule, but it depends on the proxy.
If you fail to make a call, please contact your ITSP.
NOTE: All settings in this section are specific to your VoIP network. Please ask your VoIP service
provider whether or not they require these settings.

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Example of To Invite Proxy:
International Call Prefix Digit: 00
Country Code: 1
Long Distance Call Prefix Digit: 0
Area Code: 567
ENUM Head Exception: 070
Phone Number Dialed By
The User The True Phone Number Dialed By Gateway Description
23456789 1 567 23456789 Exclude International Call Prefix Digit and Long Distance Call Prefix Digit.
Add Country Code(1) and Area Code(567).
0 223 98765432 1 223 98765432 Include Long Distance Call Prefix Digit.
Delete Long Distance Call Prefix Digit(0) and
add Country Code(1).
00 852 987654321 852 987654321 Include International Call Prefix Digit.
Delete International Call Prefix Digit(00).
070 12345678 070 12345678 Include ENUM Head Exception(070).
Do not change the number.