Davolink DV-302 User manual

Internet Telephony Gateway System
Operation Manual

DV-302 OPERATION MANUAL
I
Conventions
For product safety and correct operation, certain information contained within the text must be
read and understood by the operator/user before installing and operating the product. This
information may be set-off from the surrounding text, but is always preceded by a bold title in
capital letters.
WARNING
Indicates a potentially hazardous situation which if not avoided, could
result in death or serious injury to humans and animals.
CAUTION
Indicates a potentially hazardous situation which if not avoided, may result
in minor or moderate injury to humans and animals. It may also be used to
alert against unsafe practicesand give a general caution.
NOTE
Indicates additional information as a reference.
Instruction
Indicates a specific action is required.

DV-302 OPERATION MANUAL
II
Important Safety Information
Please retain this safety
guide for future reference
Install the ATA and attach the phone according to
this manual to avoid damage to the devices or
difficulty in operation.
Do not install in direct sunlight or in an area
where heat can build up such as on carpet,
cushion or blanket. This may cause the device
to fail and is also a fire hazard.
Do not install in a poorly ventilated area. This
may cause the device to fail and is also a fire
hazard.
Do not install in areas of high humidity such as a
bathroom or kitchen.
Do not install in areas subject to wind and rain.
Damp areas can cause electric shock and is also
a fire hazard.
Do not place liquids near the device.
Accidental spills of liquids onto the device may
cause the device to fail, is also an electric shock
and fire hazard.
User Environment

DV-302 OPERATION MANUAL
III
Important Safety Information
Install the device in a stable location. Slanted
shelves or areas subject to vibration may cause
the device to fall and break
Install the device away from sources of
interference such as the TV, sound system,
refrigerator or appliances with electric motors.
This may cause the phone line to be noisy.
Do not install in a dusty area.
This is an electric shock and fire hazard.
Do not install in an area subject to frequent
vibration. This may shorten lifetime of the device.
Do not install in a dusty area.
This is an electric shock and fire hazard.
Do not overload power outlets.
This is an electric shock and fire hazard.
To avoid electric shock, always disconnect the
power before handling the device.
Unplug the power cord by pulling on the plug,
not the cord.
Do not handle power with wet hands.

DV-302 OPERATION MANUAL
IV
Important Safety Information
Do not cover the device with carpet, cushions and
the like as this is a fire hazard.
Do not install power adapter near a heat source as
this is a fire and electric shock hazard.
Do not place heavy objects on the power cord. Do
not put tight bends or knots in the power cord as
this is a fire and electric shock hazard.
Do not modify or attempt to repair the power cord.
It must be replaced.
To avoid a potential fire hazard, make sure the
power plug contacts are clean and the power plug
is firmly plugged into the power outlet.
When moving the device to a new location, be
sure to unplug the power and later recheck all the
connections.
Before connecting the power adapter, ensure it
has the correct voltage setting. Incorrect voltage
settings are a fire hazard.

DV-302 OPERATION MANUAL
V
Important Safety Information
Only qualified service personnel can repair
phone equipment.
Consult your authorized supplier for assistance.
Phone Equipment
Do not clean the device with solvents such as
acetone as this may cause deformation or
discoloration.
Do not insert metallic objects or foreign matter
into the device. If something has been inserted,
do not touch it, disconnect the device from power
and call the service center for assistance.
If there has been a gas leak in the room, do not
operate the phone equipment as sparks may
cause explosion.
Ensure the room is well ventilated before
operating the phone equipment.
Do not touch the phone equipment or power pack
during an electrical storm.
This is an electric shock hazard.
If there is the smell of something burning or
smoke coming from the device, disconnect the
power and call the service center for assistance.
If left unattended this may cause fire or become
an electric shock hazard.

DV-302 OPERATION MANUAL
VI
Contents
Important Safety Information........................................................................................................II
Important Safety Information...................................................................................................... III
Important Safety Information......................................................................................................IV
Important Safety Information....................................................................................................... V
1. System Overview................................................................................................................... 1
1.1 System Features ...........................................................................................1
1.1.1 IP function............................................................................1
1.1.2 Voice Functions ...................................................................1
1.1.3 Security Functions ...............................................................2
1.1.4 Management Function .........................................................2
1.2 QoS enhancement functions .........................................................................2
1.3 Operation and maintenance ..........................................................................2
1.4 Service Configuration....................................................................................3
2. System Specifications............................................................................................................ 4
2.1 Basic Specifications.......................................................................................4
2.2 Operation Environment Conditions................................................................4
3. System Functions................................................................................................................... 5
3.1 Call Processing Functions.............................................................................5
3.2 Analog FXS Control Functions ......................................................................5
3.3 Emergency Call Switchover Function ............................................................5
3.4 DTMF/Call Progress Tone Detection & Generation Function.........................5
3.5 Voice Compression & Decompression Function............................................5
3.6 VoIP Function................................................................................................6
3.7 TCP/UDP/IP Protocol Processing Function ...................................................6
3.8 Ethernet Control Function..............................................................................6
3.9 FAX Relay Function.......................................................................................6
3.10 STUN Function..........................................................................................6
3.11 Telnet Remote Control Function................................................................6
3.12 Diagnostic Function...................................................................................7
3.13 DHCP Function..........................................................................................7
3.14 Web-based Management Function............................................................7
3.15 Operation Authentication Function.............................................................7

DV-302 OPERATION MANUAL
VII
3.16 On-Phone IP Address Configuration Function ...........................................7
3.17 Remote Upgrade Function.........................................................................7
3.18 TFTP/ FTP Processing Function................................................................7
4. Installation and Maintenance................................................................................................. 8
4.1 Hardware Installation.....................................................................................8
4.1.1 Pre-Installation.....................................................................8
4.1.2 Package Contents................................................................8
4.1.3 Safety Recommendations....................................................9
4.2 Hardware Installation Procedure....................................................................9
4.2.1 DV-302 Installation Steps.....................................................9
4.2.2 Cable connection...............................................................11
4.2.3 Connecting Ethernet Cable................................................11
4.2.4 FXS port ............................................................................12
4.2.5 Backup port........................................................................13
4.2.6 Cable Length .....................................................................13
4.2.7 Connection to Network.......................................................13
4.2.8 LED Status.........................................................................14
5. Configuration....................................................................................................................... 15
5.1 IP Configuration on PC................................................................................15
5.2 Web Manager..............................................................................................19
6. Status ................................................................................................................................... 20
6.1 Software......................................................................................................20
6.2 Connection..................................................................................................21
6.3 Security.......................................................................................................22
7. Basic Configuration............................................................................................................. 23
7.1 Setup...........................................................................................................23
7.2 DHCP..........................................................................................................25
7.3 DDNS..........................................................................................................26
7.4 Time............................................................................................................26
8. Netword Address Translation (NAT).................................................................................. 27
8.1 Advanced Set Up ........................................................................................27
8.1.1 Options..............................................................................27
8.1.2 IP Filtering..........................................................................27
8.1.3 MAC Filtering.....................................................................28
8.1.4 Port Filtering ......................................................................29
8.1.5 Forwarding.........................................................................30

DV-302 OPERATION MANUAL
VIII
8.1.6 Port Triggers......................................................................30
8.1.7 DMZ Host...........................................................................32
8.2 Firewall........................................................................................................33
8.2.1 Web Filter ..........................................................................33
8.3 Parental Control ..........................................................................................34
8.3.1 User Setup.........................................................................34
8.3.2 Basic Parental Control .......................................................35
8.3.3 ToD Filter...........................................................................36
8.3.4 Local Log...........................................................................37
9. Voice.................................................................................................................................... 38
9.1 Basic ...........................................................................................................38
9.2 Configuration...............................................................................................39
9.3 Service........................................................................................................40
9.4 Speed Dial...................................................................................................42
9.5 Dial plan......................................................................................................43
10. Reset ............................................................................................................................ 44
11. Upgrade........................................................................................................................ 45
11.1 Auto Upgrade..........................................................................................45
11.2 Manual Upgrade......................................................................................45
Appendix A. IVR Configuration................................................................................................. 50

DV-302 OPERATION MANUAL
1
1. System Overview
DV-302 is a residential VoIP gateway with two FXS ports for voice interfacing that can be easily
connected to conventional telephones and/or PBXs. Using a proprietary QoS management
system, the DV-302 has the capability of transmitting optimal voice quality under high data
traffic conditions.
1.1System Features
1.1.1 IP function
PPPoE (LLC/SNAP)
DHCP (Client, Server)
IPCP
Half/Full Bridge Mode
Port Triggering / Forwarding
Port Filtering
IP Filtering
MAC address Filtering
ICMP
Proxy DNS
UPnP
DMZ
1.1.2 Voice Functions
SIP (RFC3261)
Call Transfer
Call Hold / Call Waiting
Call Forwarding
CID Type Ⅰ& Ⅱ
Local mixed 3-way conference
Emergency call
Hot Line
Speed Dial
G.711a/u-law, G.729A, G.723.1
Echo cancellation –G.165, G.168

DV-302 OPERATION MANUAL
2
Fax Relay –Bypass fax, T.38
DTMF Relay –Bypass, RFC2833, SIP INFO
Call Progress Tone Generation
VoIP/PSTN selective or Prefix Dialing, Emergency call routing etc.
Fault tolerant call switch (Power fail, CA connection fail etc. - optional)
1.1.3 Security Functions
PAP/CHAP, PPTP/L2TP, IPSec/VPN pass-through
DIGEST authentication and encryption(MD5)
Firewall (IP packet filtering, MAC filtering, DMZ)
Parental Control
HTTPS
1.1.4 Management Function
Web based GUI management
SNMP, SNTP, Telnet, FTP/TFTP, UPnP
Traffic statistics, tracing, debugging
Configuration backup and restore
Telephone based management (IVR)
1.2QoS enhancement functions
G.168 echo cancellation
Voice Activity Detection (VAD)
Comfort Noise Generation (CNG)
Dynamic jitter buffer control
1.3Operation and maintenance
Supports command-line interface through telnet client
Supports system management interface through Web browser
Auto-configuration
Auto-Upgrade

DV-302 OPERATION MANUAL
3
1.4Service Configuration
Below figure shows general service configuration of the DV-302, which act as a Home Router
to connect analog phones and PC.
FIGURE 1. INTERNET TELEPHONY NETWORK CONFIGURATION

DV-302 OPERATION MANUAL
4
2. System Specifications
2.1Basic Specifications
TABLE1. DV-302 BASIC SPECIFICATIONS
SERVICE
SPECIFICATION
REMARKS
Interface
Analog
FXS
2 port
FXO
1 (back-up port)
Wan
Auto MDI-X, Auto Speed & Duplex
10/100 Base-T
LAN
Auto MDI-X, Auto Speed & Duplex
10/100 Base-T
Protocol
Data
IP protocol
DHCP, NAT, PPPoE, Filtering
VOIP
SIP, RFC2833, T.38, etc
Optional H.323
Voice Capability
G.729°, G.711U, G723.1
Echo Cancellation (G.165), VAD/CNG
Fax Capabilities
Fax/Modem pass-through, T.38
Power
60Hz, DC +12V/1.2A
External Adaptor
(Input voltage: 220VAC)
2.2Operation Environment Conditions
TABLE 2. OPERATING CONDITIONS
ITEMS
REQUIREMENTS
Temperature
Normal Operation
Optimal Operation
Limited Operation
5 - 40º
18 - 26º
2 - 50℃º
Humidity
Normal Operation
Optimal Operation
Limited Operation
20 - 65%
45 - 55%
20 - 80%
NOTE
Minimal environmental conditions may not exceed three consecutive days
or 15 total days per year.

DV-302 OPERATION MANUAL
5
3. System Functions
3.1Call Processing Functions
Call Processing Functions deliver voice to the call destination via the packetized. Basic
Functions include:
- Inter-extension connection
- Monitoring/Error Management
3.2Analog FXS Control Functions
Analog FXS Control Functions are used for SLT connection. It packetizes analog voice and
transmits through digital network to call destination. (i.e.: Call routing function).
3.3Emergency Call Switchover Function
The Emergency Call Switchover feature allows the device to switch over to a PSTN backup
line when:
- Internet Connectivity is unavailable
- Carrier Network Failure
- Power failure
- Device Malfunction
By default, the DV-302 is set to play an error message instructing the user on how to switch to
the PSTN backup line.
3.4DTMF/Call Progress Tone Detection & Generation Function
DTMF/Call Progress Tone Detection and Tone Generation Function detect and generate an in-
band-tone transmitted over an analog line.
3.5Voice Compression & Decompression Function
Voice Compression is the packetizing of PCM-coded voice data. Decompression is the
conversion of packetized voice data back into PCM-code. Support G.729A and G.711U for
Voice Coding mode. The actual voice compression/decompression is processed inside of
Digital Signal Processor and the functional unit controls DSP H/W.

DV-302 OPERATION MANUAL
6
3.6VoIP Function
SIP is a text-based protocol that is based on HTTP and MIME, which makes it suitable and
very flexible for integrated voice-data applications. SIP is designed for real-time transmission,
uses fewer resources and is considerably less complex than H.323. Its addressing scheme
uses URLs and is human readable. DV-302 support SIP protocol defined in RFC 3261.
3.7TCP/UDP/IP Protocol Processing Function
TCP/UDP/IP Protocol Processing Function processes various Protocols like TCP complying
with RFC793, UDP with RFC768 and IP Protocol with RFC791.
3.8Ethernet Control Function
Ethernet Control Function is used to process MAC, Ethernet protocol or IEEE 802.3 Protocol
and perform ARP for TCP/IP communications with CSMA/CD data network.
3.9FAX Relay Function
The DV-302 FAX Relay function enables you to place and receive fax calls over a VoIP
network in addition to voice calls.
3.10 STUN Function
STUN is an abbreviated word of Simple Traversal of User Datagram Protocol (UDP) through
Network Address Translators (NATs). It is a lightweight protocol that allows applications to
discover the presence and types of NATs and firewalls between them and the public Internet. It
also provides the ability for applications to determine the public Internet Protocol (IP)
addresses allocated to them by the NAT. It is defined in RFC 3489.
The DV-302 enables an enhanced mechanism to overcome NAT/FW network configuration.
By default, this feature is enabled so the customer doesn‟t need to set other NAT transparent
features like STUN for VOIP calls.
3.11 Telnet Remote Control Function
Telnet Remote Control Function is used for an operator to access the equipment using the
RFC 854 Telnet Protocol in a remote system for operation and management. The operator
may see and maintain the system via access through a Telnet from a remote location.

DV-302 OPERATION MANUAL
7
3.12 Diagnostic Function
The Diagnostic Function is used when there is a need for customers or operators to test the
device. Test results give limited information to customer/operator and serves as a vital tool to
provide optimal customer service.
3.13 DHCP Function
The DHCP Function is used to dynamically assign IP addresses, net-masks, and default
gateways. The AX gateway has a DHCP server in it that automatically performs this function.
3.14 Web-based Management Function
The Web-based management function is used to set DV-302 configuration parameters
remotely through web browser.
3.15 Operation Authentication Function
Operation authentication function is used to authenticate an operator by prompting the user ID
and password when the operator accesses the DV-302.
3.16 On-Phone IP Address Configuration Function
On-phone IP Address Configuration function enables users to set the DV-302 IP Address or
change the current IP Address and net-mask using a touch-tone phone.
3.17 Remote Upgrade Function
For remote maintenance and upgrading the system software remotely using FTP service.
3.18 TFTP/ FTP Processing Function
TFTP processing function is for remote maintenance and performs functions defined in
RFC1350. FTP processing function is for remote maintenance and performs the functions
defined in RFC1986.

DV-302 OPERATION MANUAL
8
4. Installation and Maintenance
4.1Hardware Installation
4.1.1 Pre-Installation
This section describes the hardware features and installation of the DV-302. It is handset-to-
Internet adaptors that allow regular analog telephones to operate on IP-based telephony
networks. DV-302 supports two FXS (Foreign Exchange Station) port and two Ethernet
interfaces as integration of voice and data effectively fills up the data communication channels
efficiently.
4.1.2 Package Contents
DV-302 is packaged with the following accessories. Please check packaging to verify complete
contents have been received.
1. DV-302 2. AC/DC Power Adaptor 3. Tel-line (RJ-11 to RJ-11)
4. LAN cable (RJ-45 to RJ-45) 5. Manual CD
FIGURE 2. PACKAGE CONTENTS

DV-302 OPERATION MANUAL
9
4.1.3 Safety Recommendations
When installing and operating the DV-302 system, please follow the safety guidelines
listed to help prevent serious injury to yourself or others, and/or damage to the DV-302
system.
Do not open or disassemble this product. This system does not contain any user
serviceable parts. Maintenance should only be performed by a qualified technician.
Do not get this product wet or pour liquids into this device.
Do not perform any action that will create a potential hazard to people or render the
equipment unsafe.
Use only the power supply that comes with the DV-302.
Maintain a well-ventilated space for the DV-302, where the temperature is kept in
the range of 0-40℃.
When removing or connecting cables, always unplug the DV-302 power.
Check the electricity quality, especially when the device is located adjacent to a large
motor.
Make sure all ventilation chambers on the system are not obstructed at any time.
Do not put heavy equipment or machinery on the system.
Instruction
Completely read this manual before connecting the system to any power
source.
4.2Hardware Installation Procedure
4.2.1 DV-302 Installation Steps
The following details how to install the DV-302 in your location. Subsequent sections
will show how to connect cables, etc.
1) Connect one end of a telephone line cord to the TEL input on the rear panel of
the DV-302. Connect the other end to an analog telephone set.
CAUTION
Connect the TEL port to a telephone only, never to a telephone wall jack

DV-302 OPERATION MANUAL
10
NOTE
The telephone must be switched to tone setting (not pulse) for the DV-302
to operate property.
2) Connect a straight-through Ethernet cable from your PC to the 10/100 PC RJ-
45 LAN port.
3) Connect a straight-through Ethernet cable from your ADSL modem‟s LAN port
to the DV-302 Network (WAN) port.
4) Insert the power plug of adaptor into the power jack of the DV-302.
WARNING
Use only the power adaptor supplied with the product.
5) Connect the plug end of the 12V DC power adaptor cord into a functional
electrical outlet.
6) When the DV-302 is properly connected and powered up, the green power
(PWD) illuminates and the green status (STS) LED flashes to indicate that the
DV-302 is working as it should.
CAUTION
Do not cover or block the air vents on either the left or the right surface of
DV-302. Overheating can cause permanent damage to the DV-302