Huawei EGW1520A Users Manual

eSpace EGW1520 Enterprise Gateway V100R001C01

Product Documentation

Issue

01

Date

2012-05-15

HUAWEI TECHNOLOGIES CO., LTD.

Issue 01 (2012-05-15)

Huawei Proprietary and Confidential

i

No part of this document may be reproduced or transmitted in any form or by any means without prior written consent of Huawei Technologies Co., Ltd.

Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.

All other trademarks and trade names mentioned in this document are the property of their respective holders.

Notice

The purchased products, services and features are stipulated by the contract made between Huawei and the customer. All or part of the products, services and features described in this document may not be within the purchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information, and recommendations in this document are provided "AS IS" without warranties, guarantees or representations of any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in the preparation of this document to ensure accuracy of the contents, but all statements, information, and recommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.

Address:

Huawei Industrial Base Bantian, Longgang Shenzhen 518129 People's Republic of China

Website:

http://www.huawei.com

Email:

support@huawei.com

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About This Chapter

Topic

Description

Safety Precautions

The precautions for using and maintaining products.

Overview

This section describes the product position, networking, appearance, functions, technical parameters, and Regulatory Compliance Information.

Installation

This section describes how to install EGW1520.

This topic describes the basic information about the EGW1520 document package, including the reader information and change history.

1.1 Library Overview

This topic describes the main contents of each document in the library and the intended audience and defines each type of audience.

1 Library Information

1.2 Conventions

This topic describes the conventions in the document.

1.3 Change History

Updates between document issues are cumulative. Therefore, the latest document issue contains all updates made in previous issues.

1.1 Library Overview

This topic describes the main contents of each document in the library and the intended audience and defines each type of audience.

Library Structure

Table 1-1 describes all documents in the package.

Table 1-1 Library Structure

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Topic

Description

Features and Implementation

This section describes EGW1520 features and how to implement them.

Quick Configuration

This topic describes how to quickly configure the EGW1520. After the EGW1520 is configured, it provides Internet access and basic voice services.

Diagnosis modes

This section describes diagnosis modes for the EGW1520.

System Management

This section describes how to manage and maintain EGW1520 in different modes.

Security Maintenance

This section describes the concept and methods for maintaining the EGW1520.

Troubleshooting

The troubleshooting processes of common faults and provides typical troubleshooting cases of EGW1520.

Reference

This section describes Web parameter reference, TR-069 parameter reference and how to Customizing Voice Prompts for the Switchboard.

Glossary

All terms in the product documentation.

Intended Audience

Definition

Maintenance Engineer

Maintenance engineers have veteran experience in telecommunications and databases, and are responsible for adjusting service data configurations, rectifying faults, and upgrading services.

Technical support Engineer

Technical support engineers provide detailed technical support for the equipment.

Intended Audience

Table 1-2 describes the engineers that the documents are intended for.

Table 1-2 Definition of the intended audience

1.2 Conventions

This topic describes the conventions in the document.

Symbol Conventions

The following symbols may be found in this document. They are defined as follows.

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Symbol

Description

Indicates a hazard with a high level of risk which, if not avoided, will result in death or serious injury.

Indicates a hazard with a medium or low level of risk which, if not avoided, could result in minor or moderate injury.

Indicates a potentially hazardous situation that, if not avoided, could cause device damage, data loss, and performance degradation, or unexpected results.

Indicates a tip that may help you solve a problem or save your time.

Provides additional information to emphasize or supplement important points of the main text.

Convention

Description

Times New Roman

Normal paragraphs are in Times New Roman.

Boldface

Names of files, directories, folders, and users are in boldface. For example, log in as user root.

Italic

Book titles are in italics.

Courier New

Terminal display is in Courier New.

Convention

Description

Boldface

The keywords of a command line are in boldface.

Italic

Command arguments are in italic.

[ ]

Items (keywords or arguments) in square brackets [ ] are optional.

{ x | y | ... }

Alternative items are grouped in braces and separated by vertical bars. One is selected.

[ x | y | ... ]

Optional alternative items are grouped in square brackets and separated by vertical bars. One or none is selected.

{ x | y | ... } *

Alternative items are grouped in braces and separated by vertical bars. A minimum of one or a maximum of all can be selected.

General Conventions

Command Conventions

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Convention

Description

[ x | y | ... ] *

Alternative items are grouped in braces and separated by vertical bars. Several or none can be selected.

Convention

Description

Boldface

Buttons, menus, parameters, tabs, window, and dialog titles are in boldface. For example, click OK.

>

Multi-level menus are in boldface and separated by the ">" signs. For example, choose File > Create > Folder.

Format

Description

Key

Press the key. For example, press Enter and press Tab.

Key 1+Key 2

Press the keys concurrently. For example, pressing Ctrl+Alt+A means the three keys should be pressed concurrently.

Key 1, Key 2

Press the keys in turn. For example, pressing Alt, A means the two keys should be pressed in turn.

Action

Description

Click

Select and release the primary mouse button without moving the pointer.

Double-click

Press the primary mouse button twice continuously and quickly without moving the pointer.

Drag

Press and hold the primary mouse button and move the pointer to a certain position.

GUI Conventions

Keyboard Operation

Mouse Operation

1.3 Change History

Updates between document issues are cumulative. Therefore, the latest document issue contains all updates made in previous issues.

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Updates in draft Issue 01 (2012-03-14)

First commercial release.

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Pay attention to the following precautions when installing and using the device.

Basic Requirements



Keep the device dry when storing, transporting, and using the device.



Take care to avoid collision when storing, transporting, and using the device.



The installation instructions provided should be followed.



In the event of a fault, contact the maintenance personnel. Do not open the device.



Any company or person cannot change the design of the structure or security without permission.



Any changes to the device must be carried out by an authorized and suitably qualified person with the permission of manufacturer.



This device must be used in compliance with the legal and regulatory requirements of the country in which it is being used. Please respect the legal rights of others when using this device.

2 Safety Precautions

Usage Notice



This device should be installed by a suitably qualified person.



The device must be far away from heat sources. Do not place any objects on the device. Ensure that the heat dissipation vents on are not blocked.



DO NOT Drop the device from a height of 80 cm or greater; this may damage the device.



In the event of an electrical storm / lightning, turn off the power to the device and remove cables to avoid damage to the device.



All the phone cables are only used indoors, or the lightning may damage the device.



Keep the power plug clean and dry to avoid risk of electric shock and other potential risk.



Use the power supply adapter provided with this product.



When using this device with mains power, the power socket should be located close to the device and should be easily accessible.



Keep your hands dry when plugging in or out the device cable.



When the device is not in use, the power should be turned off and the mains power cable should be disconnected from the mains supply.

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

 



 



Cleaning Notice



Keep water and other liquids away from the device. In the event of liquid coming into contact with the device, disconnect from the power immediately. Remove all cables, including network connections and power cables and contact your maintenance personnel.

Never use damaged or old cables. In the event of unusual behavior, such as smoke emitting from the device, unusual noises

or smells, disconnect from the mains power supply immediately, remove all the cables connected to the device and contact an authorized maintenance personnel.

Care should be taken to prevent foreign objects from entering the device, with particular attention being paid to the heat dissipation hole.

Please keep this device and accessories away from children. The antennas and 3G USB label used for this device must be installed to provide a safety

distance of at least 20 cm from all persons. Do not use the device where use of wireless devices is prohibited or may cause

interference or danger such as hospitals. The radio waves generated by the device may interfere with the operation of electronic

medical devices. Use electrical medical device under the guidance of the professionals or contact its manufacturer for the restrictions on the use of the device.

Before cleaning, the device should be shut down and disconnected from the mains power supply, removing all power and network cables.

Clean using a soft, dry cloth. Do not use liquid or aerosol cleaners on this device.

Environment Protection

Please comply to all legal and environmental requirements when disposing of obsolete devices and packaging.

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About This Chapter

This section describes the product position, networking, appearance, functions, technical parameters, and Regulatory Compliance Information.

3.1 Product Positioning and Features

This topic describes the product positioning and features of the eSpace EGW1520.

3 Overview

3.2 Application Scenarios

3.3 Architecture

This topic describes the appearanceports, and indicators of the EGW1520.

3.4 Functions and Features

The EGW1520 provides rich functions and features to support voice services and data services.

3.5 Operation and Maintenance

Users can manage the EGW1520 in the web management system and use the eSpace element management system (EMS) to operate and maintain the EGW1520.

3.6 Technical Specifications, Standards, and Authentications

This topic describes the technical specifications, standards, and authentications of the EGW1520.

3.1 Product Positioning and Features

This topic describes the product positioning and features of the eSpace EGW1520.

3.1.1 Product Positioning

eSpace EGW1500 is a multi-service access gateway that integrates applications such as voice, data, and broadband connections and provides a complete access solution. It is an optimal choice for Small Office Home Office (SOHO) users and small enterprises to establish an integrated office network.

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The eSpace EGW1500 provides multiple uplink ports for networks in different uplink modes. It also provides user ports to establish flexible office networks.

3.1.2 Highlights

This topic describes the product highlights of the EGW1520. With various services and ports, the EGW1520 features cost-effectiveness, high reliability and security, easy deployment, and simplified maintenance.

High Reliability and Security

The EGW1520's reliability reaches 99.99%, the mean time between failures (MTBF) is over 50 years, and the mean time to restore (MTTR) is less than 3 minutes.

The EGW1520 provides various mechanism such as dual-homing, power-off survival, local survival, 3G access backup, and QoS to ensure the device reliability, and uses advanced technologies such as VPN, URL filtering, NAT, and DMZ to improve network security.

Integration of Multiple Services

The EGW1520 integrates various functions such as broadband access, voice, routing, security, wireless, firewall, and VPN. Multiple services can be deployed on the same node, which significantly reduces the initial investment and long-term maintenance costs of the enterprise network. The EGW1520 uses an advanced hardware platform and software architecture to provide users with the integrated network solution with a minimum investment.

Various Ports

The EGW1520 provides various uplink ports for different networking scenarios, including WAN, ADSL, USB, and FXO ports. The EGW1520 also provides diversified user ports such as Wi-Fi, LAN, FXS port to set up flexible office networks.

Easy Installation and Maintenance

The EGW1520 is a relatively small box that can be placed on a desk or mounted on a wall. The EGW1520 provides standard external ports that are clearly marked to facilitate installation and cable connection. The EGW1520 uses standard connection parts and does not require a dedicated installation tool.

Users can view and configure devices on Web pages. The web management system provides step-by-step configuration guide for qiuck installation.

Efficient Remote Maintenance

The EGW1520 ensures the security of remote access. Users can access the EGW1520 through an uplink port (WAN, ADSL, or 3G) to perform remote configuration and maintenance.

The EGW1520, complying with the TR-069 protocol, connects to the network management server (such as the eSpace EMS) to enable management functions such as the software version upgrade, configuration file backup and recovery, and device status monitoring.

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3.2 Application Scenarios

EGW1520 supports two application scenarios.



The EGW1520 provides a small-capacity solution integrating voice and broadband services for small enterprises or SOHO users.



The EGW1520 provides a comprehensive access solution for small branches by integrating with the eSpace UC solution.

3.2.1 Application of EGW1520 in SOHOs

The EGW1520 provides a small-capacity solution integrating voice and broadband services for small enterprises or SOHO users.

Figure 3-1 shows the networking mode for the application of the EGW1520 in SOHOs.

Figure 3-1 Application of the EGW1520 in SOHOs

Uplink Mode

The EGW1520 supports three uplink access modes, namely, Asymmetric Digital Subscriber Line (ADSL), Wide Area Network (WAN), and 3G, as shown in Figure 3-1.

The EGW1520 usually connects to an IP network through ADSL or WAN ports. When neither ADSL or WAN port is available, users can use USB-based 3G data cards to connect to a 3G network, to transmit voice and data streams (excluding fax data).

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Voice Application

The EGW1520 supports the IP PBX function. Users can use different terminals (such as analog phones, fax machines, and IP phones) to connect to the EGW1520 for internal communication. In addition, the EGW1520 acts as an agent to register users with the IMS or NGN to implement outgoing calls and provide voice services.

The FXO/LINE port supports the power-off survival function. When the EGW1520 encounters a power failure, the analog phone can be connected to the PSTN through the FXO/LINE port. In this way, the call function is still available even when the EGW1520 is powered off.

Data Application

The EGW1520 can be used to set up an enterprise network in LAN or WLAN mode. LAN users use the EGW1520 to connect to the Internet to use various services. The EGW1520 also supports various data functions, such as WLAN, DNS, VLAN, DHCP, static routing, QoS, NAT, VPN, URL filtering, DMZ, analog server, and MAC address filtering.

The ADSL and WAN connections are two parallel modes, which cannot be used together or back up each other.

3.2.2 Enterprise Branch

The EGW1520 integrates various eSpace UC solutions and is deployed in small-sized enterprise branches. As the network ingress, the EGW1520 provides a comprehensive access solution for enterprise branches.

Figure 3-2 shows the networking mode for the application of the EGW1520 in enterprise

branches.

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Figure 3-2 Application of the EGW1520 in enterprise branches

Uplink Mode

The EGW1520 supports three uplink access modes, namely, ADSL, WAN, and 3G, as shown in Figure 3-2.

The EGW1520 usually connects to an IP network through ADSL or WAN ports. When neither ADSL or WAN port is available, users can use USB-based 3G data cards to connect to a 3G network, to transmit voice and data streams (excluding fax data).

Voice Application

Users within the enterprise branches are registered with the SIP server on the central node of the headquarters. The user numbers are allocated and synchronized to the EGW1520 by the data synchronization server. In the eSpace UC solution, the SIP server on the central node of the headquarters controls incoming and outgoing calls of enterprise branch users and provides voice services for these users.

The EGW1520 supports the trunking gateway function to process incoming and outgoing calls for the local PSTN. This function helps reduce enterprises' toll call costs.

The ADSL and WAN connections are two parallel modes, which cannot be used together or back up each other.

The FXO1/LINE port supports the power-off survival function. When the EGW1520 encounters a power failure, the analog phone can be connected to the PSTN through the FXO1/LINE port. In this way, the call function is still available even when the EGW1520 is powered off.

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Local Survival

The EGW1520 registers with the active and standby servers at the same time. If the active and standby SIP servers are both faulty, the EGW1520 switches to the local survival mode to process intra-office calls as a local server. When the active or standby SIP server is restored, the EGW1520 exits the local survival mode.

Data Application

The EGW1520 can be used to set up an enterprise network in LAN or WLAN mode. LAN users use the EGW1520 to connect to the Internet to use various services. The EGW1520 also supports various data functions, such as WLAN, DNS, VLAN, DHCP, static routing, QoS, NAT, VPN, URL filtering, DMZ, analog server, and MAC address filtering.

3.3 Architecture

This topic describes the appearanceports, and indicators of the EGW1520.

3.3.1 Appearance

EGW1520 is a box-shaped device that can be placed on a desk or mounted on the wall. Its dimensions (H x W x D) are 35 mm x 305 mm x 175 mm, as shown in Figure 3-3.

Figure 3-3 EGW1520 appearance

3.3.2 Ports and Buttons

This topic describes the EGW1520 ports and buttons.

Figure 3-4 shows the EGW1520 ports and buttons.

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Figure 3-4 EGW1520 ports

SN

Label

Quan tity

Physical Port and Attribute

Function

1

ADSL

1

ADSL port RJ-11

Connects to the peer Digital Subscriber Line Access Multiplexer (DSLAM) through a telephone line to access the broadband network.

2

FXO1–4

4

FXO port RJ-11

Enables phones connected to the EGW1520 to make calls.

Enables the phone connected to PHONE1 to access the PSTN when the EGW1520 is powered off.

3

PHONE

1

POTS port RJ-11



Connects to analog phones and fax machines.



PHONE1 supports power-off survival.



One PHONE port can connect only one analog phone.



User line length (diameter is 0.4 mm) is equal to or less than 1 km.



PHONE ports are only used indoors.

Ports specifications

Figure 3-5 EGW1520 buttons

Table 3-1 describes the EGW1520 ports.

Table 3-1 EGW1520 ports and buttons

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SN

Label

Quan tity

Physical Port and Attribute

Function



The feed voltage is -48 V DC when an analog phone is in the on-hook state.



The supply current is 25 mA when an analog phone is in the off-hook state.



The value of EGW1520's ringing power is 50Vrms.

4

USB

1

USB port USB 2.0

Uses a 3G data card to connect to the 3G network.

5

WAN

1

WAN port RJ-45 MDI-X 10/100/1000

Base-TX Outdoor

network port

Connects to the broadband network in WAN mode.

6

LAN1-4

4

LAN port RJ-45 MDI-X 10/100Base-

TX Indoor

network port

Connects to Ethernet devices such as local computers and IP phones to establish a LAN.

When LAN ports connect to IP phones, they are only used indoors. 7

12 V/2 A

1

Power supply port

Connects to the power supply adapter to provide power for the EGW1520. Requirement: 12 V DC, 2 A.

8

ON/OFF

1

Power switch

Switch for powering on and powering off the EGW1520.

9

RESET

1

Reset button

Restores the factory settings if this button is held down for more than six seconds.

Restarts the EGW1520 if this button is held down less than six seconds.

10

WLAN

1

Wi-Fi control button

Enables the WiFi Protected Setup (WPS) function if this button is held down for more than six seconds.

NOTE

With the WPS function, the Wi-Fi terminal starts to authenticate the WPS. If the authentication exceeds two minutes, the function is not enabled.

Enables or disables the WLAN function if this button is held down for less than six seconds.

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Indicato r

Indication

Description

POWER

Indicates the power status.

Steady on: The EGW1520 is powered on. Off: The EGW1520 is powered off.

ADSL

Indicates the ADSL connection status.

Steady on: The ADSL connection has been established and activated.

Blinking: The ADSL connection is being activated. Off: The EGW1520 is powered off or the ADSL

connection has not been established.

INTERN ET

Indicates the WAN or 3G connection status.

Steady on: The EGW1520 works in routing mode and is connected to the WAN, but no data is transmitted.

Blinking: The EGW1520 works in routing mode and is connected to the WAN, and data is being transmitted.

Off: The EGW1520 works in bridge mode, works in routing mode and is not connected to the WAN, or is not powered on.

WLAN

Indicates the WLAN power or communication status.

Steady on: The WLAN has been enabled but no data is transmitted.

Blinking: The WLAN is enabled and data is being transmitted.

Off: The EGW1520 is powered off or the Wi-Fi function is disabled.

VOIP

Indicates the VoIP status.

Steady on: At least one VoIP user is registered with the SIP server and is in idle status.

Blinking: At least one VoIP user is working. Off: The EGW1520 is powered off or the VoIP user

failed to be registered with the SIP server.

3.3.3 Indicators

This topic describes the EGW1520 indicators.

Figure 3-6 shows the names of EGW1520 indicators.

Figure 3-6 Names of the EGW1520 indicators

Table 3-2 describes the indicators on the EGW1520 front panel.

Table 3-2 Indicators on the EGW1520 front panel

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Indicato r

Indication

Description

PHONE

Indicates the phone status.

Steady on: The analog phone is picked up. Off: The EGW1520 is powered off or the analog phone is

hung up.

Indicator

Description

Network port indicator

Steady on: The network port is properly connected. Off: The network port is disconnected. Blinking: Data is being transmitted.

In addition to the indicators on the front panel, there is an indicator on each network port, as shown in Table 3-3.

Table 3-3 EGW1520 indicators on the network port

3.4 Functions and Features

The EGW1520 provides rich functions and features to support voice services and data services.

3.4.1 Voice Features

Voice Access

SIP Trunk

The SIP trunk supports the registration mode and static mode. The EGW1520 supports only the SIP trunk in the registration mode. The SIP trunk sends a

registration message to the SIP server to set up a dynamic link. After being registered to the IMS or NGN network using the SIP trunk, the EGW1520

processes internal calls and the SIP signaling for outer-office calls.

Common Mode

When functioning as a device on the access layer, the EGW1520 can register with the IMS or NGN network using the SIP trunk and process SIP signalings. When functioning as the a small IP-PBX device, the EGW1520 accepts registration of IP phones and supports call control and protocol processing.



A maximum of 20 SIP users can be registered.



The EGW1520 provides four foreign exchange station (FXS) ports, connecting to a maximum of four POTS users.

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UC Mode

Type

Service

Voice service Calling line identification presentation (CLIP)

Switchboard service



The EGW1520 supports a maximum of eight concurrent voice calls made by SIP users and POTS users. The maximum number of POTS users varies according to codec standard:

− Four concurrent POTS calls for G.711 and G.729.

− Two concurrent POTS calls for G.726 and G.722.

The EGW1520 voice services comply with the following standards:



G.711A, G.711u, G.729, G.726, and G.722



SIP (RFC 3261-3265)



SIP Session Timers (RFC 4028)



SDP (RFC 2327)



RTP/RTCP



RFC2833

The EGW1520 is used together with the eSpace UC solution. In UC mode, the EGW1520 can be registered with multiple SIP servers at the same time. Phones connecting to the EGW1520 are registered with the SIP server on the central node at the headquarters. All calls are processed by the SIP server at the headquarters.

When the EGW1520 is disconnected from the active and standby SIP servers, the EGW1520 automatically enters the local survival mode and functions as the local SIP server to accept registration of internal users. The EGW1520 processes all calls.

The EGW1520 can function as the local PSTN landing gateway, implementing local incoming and outgoing calls and helping reduce toll call fees.

Connecting to the PSTN Network

The EGW1520 provides one FXO port used to connect to the PSTN network. An intra-office user dials the outgoing prefix and an outer-office user's number to make an outgoing call through the FXO port. An outer-office user dials the number that the PSTN carrier allocates to the FXO port to make an incoming call. The EGW1520 supports the switchboard and dedicated line functions. By default, the switchboard function is enabled.



The EGW1520 supports one FXO port.



The FXO port supports only the one-stage dialing mode.



Only one call can be made through the FXO port at a time.

Voice Services

This topic describes the voice services supported by the EGW1520. Table 3-4 lists these voice services.

Table 3-4 Voice services

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Type

Service

Private line service

Call pickup

Call waiting

Three-way calling

Call forwarding unconditional (CFU)

Call forwarding busy (CFB)

Call forwarding on no reply (CFNR)

Anonymous call

Called number presentation

Called number presentation restriction

Do not disturb (DND)

Night service

Call hold

Malicious caller identification

Call history

Call transfer

Outgoing call barring

Call back on busy (CBB)

Voice message

Message notification

Message retrieval

CLIR rejection

Automatic call rejection

Fax service

T.30 and T.38 fax services

Fixed mobile convergence (FMC) service

Simultaneous ringing

Sequential ringing

Call switch

Voice message

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Voice QoS

VAD

CNG

EC

This topic describes the voice QoS policies supported by the EGW1520.

Voice activity detection (VAD) is a technology used in speech coding and speech recognition where the presence or absence of human speech is detected. The VAD avoids unnecessary coding and transmission of silence packets in Voice over Internet Protocol (VoIP) applications, saving computation and network bandwidth.

Comfort noise generator (CNG) is used with VAD. When the VAD function is enabled and no packets are sent during the silent period, the listener may think that the call has disconnected. To avoid this, the EGW1520 enables the CNG function on the receiver end. The EGW1520 CNG technology complies with RFC3389.

Echo cancellation (EC) is a process of removing echo from a voice communication to improve voice quality on a telephone call. In addition to improving subjective quality, this process increases the capacity achieved through silence suppression by preventing echo from traveling across a network. The EGW1520 EC technology complies with ITU-T G.168.

PLC

Packets are often lost on the connectionless IP network as a result of network congestion, buffer area spillover, or error codes. A packet loss compensation (PLC) algorithm is used to minimize the effects of packet loss. Lost frames can be reconstructed during decoding based on the voice context, which ensures the quality of the received voice.

Jitter Buffer

With the jitter buffer function enabled, received packets can be buffered and then retrieved and processed to remove jitter.

Reliability

The EGW1520 provides various technologies to ensure voice communication reliability.

Multi-SIP Registration–DR Mechanism in a Small Branch

Multi-SIP registration is a disaster recovery (DR) mechanism for emergencies, which is used to avoid SIP server breakdown. Functioning as a voice access device in small branches, the EGW1520 can register with two SIP servers at the same time. When the active SIP server is faulty, the EGW1520 switches services to the standby SIP server. When the active SIP server is recovered, the EGW1520 switches services to the active SIP server.

Power-off Survival

The EGW1520 provides an FXO port for power-off survival. When the EGW1520 is powered off, the POTS phone connected to the PHONE port is automatically connected to the FXO

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Local Survival

3.4.2 Data Features

ADSL

port to access the PSTN, which allows the EGW1520 to still support basic voice services during power-off.

Functioning as a voice access device in small branches, the EGW1520 supports local survival. When the EGW1520 detects that the central node in the headquarters is disconnected from the

SIP server, the EGW1520 processes local calls.

The EGW1520 provides rich data services to meet requirements of different users.

The EGW1520 can connect to an upstream network through the ADSL port. ADSL is an asymmetric transmission technology. It uses high frequencies that are not used by voice phone calls and several modulation methods to achieve high-speed data transmission.



The routing and bridging connection types are supported.



The EGW1520 can use a static IP address or use DHCP or Point-to-Point Protocol over Ethernet (PPPoE) to obtain a dynamic IP address.



Two Point-to-Point Protocol (PPP) authentication modes are supported, including Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP).



The ADSL Seamless Rate Adaptation (SRA) technology is supported.



The voice service and the data service must use the same ADSL Permanent Virtual Circuits (PVC) channel.



The EGW1520 can connect to an IP network through the ADSL or WAN port. The ADSL and WAN ports cannot be used at the same time or back each other up.

WAN Port

3G

The EGW1520 can connect to an IP network through the WAN port. The ADSL and WAN ports cannot be used at the same time or back each other up.



The EGW1520 provides a 10/100/1000 Mbit/s self-adaptive WAN port.



The EGW1520 can use a static IP address or use DHCP or PPPoE to obtain a dynamic IP address.



The WAN port automatically chooses a work mode between the full-duplex and half-duplex modes. The duplex mode cannot be manually configured.



The EGW1520 can connect to an IP network through the ADSL or WAN port. The ADSL and WAN ports cannot be used at the same time or back each other up.

Generally, the EGW1520 connects to an IP network through the ADSL or WAN port. If a 3G data card is inserted into the USB port, the EGW1520 can also connect to a 3G network using the 3G data card. The 3G network connection supports voice (except the fax service) and data services.



The EGW1520 supports the following 3G data cards:

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Static Routes

LAN Ports

Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) data cards:

− Huawei ET302 (software version: 11.100.05.00.00)

− Huawei ET127 (software version: 11.101.01.36.00)

Wideband Code Division Multiple Access (WCDMA) data cards:

− Huawei K3765 (software version: 11.126.03.06.00)

− Huawei E176G (software version: 11.126.03.02.00)



The 3G network connection can be used as a backup network connection when no ADSL or WAN connection is available, and does not support fax, DMZ host, and virtual server functions.

Users can manually configure static routes on the EGW1520. Proper static routes improve the network performance and ensure that important network application obtain required bandwidth.

Terminals such as PCs and IP phones can connect to the EGW1520 through LAN ports to establish a small LAN. Functions such as file management, application sharing, printer sharing, scheduling in a work group, email, and fax can be implemented in the LAN.

WLAN

DNS



The EGW1520 provides eight 10/100Mbit/s self-adaptive LAN ports.



The default IP address for accessing the EGW1520 through LAN ports is 192.168.1.1 and the default the subnet mask is 255.255.255.0.



The EGW1520 can function as a DHCP server and assign IP addresses to data terminals such as PCs and IP phones connected to the EGW1520 through LAN ports.

The EGW1520 supports Wi-Fi services and wireless networking. It provides an integrated network solution that covers both wired and wireless networking for small enterprises.



IEEE 802.11b/g/n is supported.



A maximum of 16 Wi-Fi terminals can connect to the EGW1520 at the same time.



Four Service Set Identifiers (SSIDs) can be configured and the EGW1520 supports SSID broadcasting or hiding.



The MAC address filtering function is supported. A maximum of 16 MAC addresses can be added to the list of MAC addresses that are allowed to connect to the EGW1520.



The Wi-Fi bridging function is not supported.

DNS allows users to specify meaningful domain names for network devices. The EGW1520 can function as a DNS client and use DNS servers to resolve domain names.

VLAN

The VLAN technology is used to divide a LAN into multiple logical LANs, that is, multiple VLANs. Each VLAN is a broadcast domain. Hosts in the same VLAN communicate with each other the same as they are in the same LAN. Hosts in different VLANs cannot

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DHCP

communicate with each other directly. The EGW1520 supports port-based VLANs. LAN ports are added to different VLANs so that users are separated and virtual work groups are created.

 

DHCP is a protocol for dynamically managing and configuring users in a centralized manner. It uses the Client/Server structure. A DHCP client sends the DHCP server a request to apply for parameter settings, including the IP address, subnet mask, and default gateway. The EGW1520 can function as a DHCP server, DHCP relay, or DHCP client.



 

3.4.3 QoS

The EGW1520 provides a complete QoS mechanism to ensure that core services are allocated with sufficient bandwidth resources.

A maximum of eight VLANs can be created. Only port-based VLANs are supported.

As a DHCP server, the EGW1520 provides a configurable address pool. In the default address pool, IP addresses ranges from 192.168.1.2 to 192.168.1.254.

As a DHCP relay, the EGW1520 complies with RFC3361. As a DHCP client, the EGW1520 supports Option42/43/60/61/66/67/120/125/150.

NAT

QoS policies can be customized to ensure precedence of core services. In addition, the EGW1520 limits bandwidth for common services (such as web-based upload) and saves it for core services (such as voice streams). The EGW1520 supports the following Diff-Serv-based QoS technologies: priority mark, congestion management, and traffic policing.



802.1p/q priority can be marked in VLAN tags.



The Differentiated Services Code Point (DSCP) priority can be marked.



The bandwidth control can be performed on upstream data streams.



Voice packets can be listed in the queue of high priorities and be transferred in a higher priority.

3.4.4 Security

The EGW1520 provides rich security functions to ensure the security of calls and transferred data.

NAT is the process of converting a private IP address in an IP packet header to a public IP address. This function enables computers with private IP addresses to connect to a public network. NAT solves the problem of insufficient public IP addresses and prevents attacks from other networks, hiding and protecting computers on the private network.

A maximum of 1024 NAT entries are supported.

SIP ALG

NAT is the technology for converting private IP addresses to public IP addresses, and allows one or more hosts on the private network to use the same the public IP address to access a public network. NAT works in the transport layer, and is transparent to the application layer.

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This brings a great challenge SIP applications. The EGW1520 supports SIP Application Layer Gateway (ALG) that solves the SIP NAT traversal problem.

Incoming Packet Filtering

If the firewall is enabled on the LAN or WAN side, all packets sent to the EGW1520 through LAN ports or the WAN port are blocked. The incoming packet filtering function allows specific packets to access the EGW1520. For example, if the firewall is enabled on the LAN side, voice and data packets cannot access the EGW1520 through LAN ports. Users can configure the incoming packet filtering function to allow voice packets to access the EGW1520.

Outgoing Packet Filtering

By default, the EGW1520 does not block any outgoing packets sent from LAN ports. Users can configure the outgoing packet filtering function to prevent specific packets from being sent from LAN ports.

MAC Address Filtering

If the ADSL service type is set to Bridge, users can configure the MAC address filtering function to prevent the ADSL port from sending certain data frames.

URL Filtering

Virtual Server

DMZ

The EGW1520 supports URL filtering, controlling the access to URLs effectively.



A maximum of 100 URLs can be filtered.



The maximum length of a URL is 128 bytes.



Partial match and full match are supported.



Filtering rules that use wildcard characters are not supported. For example, users cannot use the asterisk (*) to represent full match.

The virtual server function allows external networks to access servers on private networks. These servers can provide services such as web access and FTP download, which allows public servers to be established on private networks.

This function is not supported when the 3G access mode is used.

The virtual server function allows external networks to access servers on private networks. If there are many services running on private network servers, multiple virtual servers must be configured. The configuration process is complicated. The DMZ function simplifies the configuration process. Only IP addresses of the DMZ servers must be configured.



One DMZ host is supported.



This function is not supported when the 3G access mode is used.

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IPSec VPN

The EGW1520 can function as the access gateway for a small branch, and connect to the headquarters through the IPSec VPN channel, implementing secure access.

The EGW1520 uses IPSec to establish a VPN channel to the headquarters in Site-to-Site tunnel encapsulation mode. As the initiator of the VPN channel, the EGW1520 can use the IP address of the peer device as the ID.

Configuration File Encryption

The EGW1520 encrypts the configuration file and sensitive data such as user names and passwords in the file.

The EGW1520 encrypts the following items:



User name and password for logging in to the web management page.



PPPoE user name and password



PPPoA user name and password



Password for connecting to the WLAN



User name and password for connecting to the 3G network



TR-069 ACS user name and password



SIP user name and password



Password for connecting to the NTP server



Password in the VPN shared key mode

The configuration file cannot be modified manually.

HTTPS

Users can safely transmit information between the web browser and EGW1520 using HTTPS protocol.

3.5 Operation and Maintenance

Users can manage the EGW1520 in the web management system and use the eSpace element management system (EMS) to operate and maintain the EGW1520.

3.5.1 Web-based Management

Users can configure, diagnose, and upgrade the EGW1520 in the web management system. The HTTPS and HTTP protocols are supported.

Figure 3-7 shows the main page of the EGW1520 web management system.

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Figure 3-7 Main page of the EGW1520 web management system

3.5.2 Unified Network Management

TR-069 is a DSL forum technical specification entitled CPE WAN Management Protocol (CWMP). It defines an application layer protocol for remote management of end-user devices. Huawei eSpace EMS uses TR-069 to manage and maintain the EGW1520 remotely.

TR-069 is used to upgrade versions, back up files, and restore configurations. Huawei eSpace EMS supports the following data models:



TR-98 data model



TR-104 data model

For details about Huawei eSpace EMS, see the eSpace EMS Documentation.

3.6 Technical Specifications, Standards, and Authentications

This topic describes the technical specifications, standards, and authentications of the EGW1520.

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3.6.1 Technical Specifications

Item

Specification

Dimensions (L x W x H)

305 mm x 175 mm x 35 mm

Weight

1 kg (device weight, without the power adapter and other accessories)

Maximum power

24 W

Power supply

12 V DC, 2 A

Power supply adapter

Input: 100–240 V AC, 1.0 A, 50 or 60 Hz Output: +12 V DC, 2 A

Maximum transmit power of Wi-Fi

802.11b/g/n (SISO): 16±2 dBm

802.11n (MIMO): 18±2 dBm

Long-term operating temperature

0°C-40°C

Long-term operating humidity

5%-95% (non-condensing) Altitude

≤ 4 km

Atmospheric pressure

70 -106 kPa

Service Name

Standard Name

Standard Version

ADSL/ADSL2/ ADSL2+/Anne x M

ITU-T G.992.1 Annex A

ITU-T G.992.1 (06/1999)

ITU-T G.992.3 (ADSL 2) Annex A, L and M

ITU-T G.992.3 (01/2005)

ITU-T G.992.5 (ADSL 2+) Annex A,M

ITU-T G.992.5 (01/2005) Seamless Rate Adaption

ITU-T G.992.3 (01/2005)

Encapsulation: PPPoE and PPPoA

PPPoE-RFC 2516 (February

1999)

This topic describes EGW1520 technical specifications such as dimensions, weight, power supply, consumption, and running environment.

EGW1520 parameter table show in Table 3-5 is displayed.

Table 3-5 EGW1520 parameters

3.6.2 Standards

This topic describes the standards that the EGW1520 complies with.

Table 3-6 Standards compliance

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Service Name

Standard Name

Standard Version

PPPoA-RFC 2364 (July 1998)

WiFi

IEEE 802.11 b/g/n

IEEE 802.11b-1999 IEEE 802.11g-2003 IEEE 802.11n-2009

IP Requirements

MAC Address (IEEE 802.3)

IEEE 802.3-2002

IPv4 Internet Protocol v4 (RFC

791)

IP Version 4-RFC 791 (September 1981)

ARP Address Resolution Protocol (RFC 826)

RFC 826 (November 1982)

ICMP Internet Control Message Protocol (RFC792)

RFC 792 (September 1981)

TCP Transmission Control Protocol (RFC793)

RFC 792 (September 1981)

UDP User Datagram Protocol (RFC768)

RFC 768 (August 1980)

RTP Real-Time Protocol (RFC

3550) (RFC 3551)

RTP Version 2-RFC 3550 (July

2003) RFC 3551 (July 2003)

RTCP Real Time Control Protocol (RFC 3550)

RTCP-RFC 3550 (July 2003)

An Ethernet Address Resolution Protocol (RFC 826)

RFC 826 (November 1982)

A Standard for the Transmission of IP Datagrams over Ethernet Networks (RFC 894)

RFC 894 (April 1984)

A Standard for the Transmission of IP Datagrams over IEEE 802 Networks (RFC 1042)

RFC 1042 (February 1988)

DHCP (RFC 2131)

RFC 2131 (March 1997)

VLAN tagging 802.1 p/q

IEEE802.1 Q-2003

Timing

NTP (RFC 1305)

NTP Version 3-RFC1305 (March

1992)

SIP Protocol

RFC 3323

RFC 3323 (November 2002)

RFC 3325

RFC 3325 (November 2002)

RFC 3515 – Refer method

RFC 3515 (April 2003)

RFC 3891 – Replaces header

RFC 3891 (September 2004)

RFC 3261

SIP Version 2.0-RFC 3261 (June

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Service Name

Standard Name

Standard Version

2002)

RFC 3262

RFC 3262 (June 2002)

RFC 3264

RFC 3264 (June 2002)

RFC 3455

RFC 3455 (January 2003)

SIP Session Timers

RFC 4028

RFC 4028 (April 2005)

SIP locating Servers

RFC 3263 for SIP over UDP

RFC 3263 (June 2002)

P-CSCF Discovery

DHCP method – RFC 3361

RFC 3361 (August 2002)

DNS Client

DNS for IPv4

CLIP/CLIR RFC 3323

RFC 3323 (November 2002)

RFC 3325

RFC 3325 (November 2002)

Message Waiting Indication

RFC 3842

RFC 3842 (August 2004)

RFC 3265

RFC 3265 (June 2002)

Event Notification

RFC 3265

RFC 3265 (June 2002)

NAT Traversal

NAT Traversal (RFC 3947)

NAT for IPv4-RFC 3947 (January 2005)

Codec

G.711 A-Law

None

G.711 μ-Law

None

G.729 Annex A (must include annexb=no)

None G.729 Annex B

None

G.726 (optional)

None

G.722

None

Fax T.38

ITU-T T.38 (09/2005)

T.30 over G.711

ITU-T T.30 (09/2005)

Comfort Noise Generation

RFC 3389

RFC 3389 (September 2002)

Echo Cancellation

G.168

ITU T G.168 (08/2004) DTMF

RFC 2833

RFC 2833 (May 2000)

CPE Provisioning

TR-069

TR-069 v1.1, Amendment 2 (December 2007)

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Service Name

Standard Name

Standard Version

TR-104

TR-104 (September 2005)

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About This Chapter

Item

Requirement

Damppr

Working humidity: 5%-95% relative humidity (RH), no condensing. The

EGW1520 is a box-shaped device. This topic describes how to install EGW1520.

4.1 Checking the Installation Environment

Before installation, check the installation environment.

4 Installation

4.2 Unpacking Check

You need to check the received equipment according to the packing list and check whether all the materials (such as hosts, cables, and CD-ROMs) are complete and undamaged.

4.3 Preparing Installation Tools

This topic describes the tools for installing the EGW1520 on the wall. If you want to install the EGW1520 on a horizontal surface, place it on the surface.

4.4 Installing EGW1520

Install EGW1520 on a horizontal surface or on the wall.

4.5 Connecting Cables

This topic describes how to connect cables for the EGW1520.

4.6 Powering On the EGW1520

After cables are connected, press the power button to power on the EGW1520. View the indicators and verify that the EGW1520 is working properly.

4.1 Checking the Installation Environment

Before installation, check the installation environment.

Table 4-1 lists the major check items in the installation environment.

Table 4-1 Major check items in the installation environment

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Item

Requirement

oof

dehumidifier devices such as air conditioners with the dehumidifier function and special dehumidifiers must be installed in the equipment room where the relative humidity is higher than 95%. Water seepage, dripping, and dew condensation are forbidden in the room.

Dustpro of

If the equipment room is close to a dust source, such as a coal mine, a country road or a farmland, install aluminum alloy windows and fireproofing doors.

Lightpr oof

Place the device in an environment without direct and strong sunlight.

Interven tion-pro of

Prevent interference caused by other radio devices such as WLAN APs within 50 m. Place the device at the center of the working area by considering the WLAN coverage range. Install the antennas vertically to get the best WLAN performance.

AC power

Stable AC power supply (220 V) must be provided indoors and meets power supply requirements (600 W).

Heat dissipati on

Place the device in an environment with good ventilation and without heat sources. Leave more than 10 cm space for heat dissipation at the top and all four sides of the device.

Item

Qu ant ity

Remarks

eSpace EGW1520 including antennas

1

Power supply adapter

1

12V,2A

Asymmetric digital subscriber line (ADSL) splitter

1

Analog phone line

3

-

Straight-through network cable

1

A straight-through network cable is 2 meters long.

Swell fixtures

2

Swell fixtures are used to install the EGW1520 on the wall.

Document and CD-ROM

1

eSpace EGW1520 Enterprise Gateway Product Documentation and Copyright Notice

4.2 Unpacking Check

You need to check the received equipment according to the packing list and check whether all the materials (such as hosts, cables, and CD-ROMs) are complete and undamaged.

Table 4-2 Packing list

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Item

Qu ant ity

Remarks

& Warranty Disclaimer and Written Offer.

eSpace EGW1520 Enterprise Gateway Quick Start

1

Qualification Card and Declaration on Hazardous Substances in Electronic Information Products.

Phillips screwdriver

Claw hammer

Hammer drill

Level ruler

If any material is damaged or lost, contact the local merchant.

4.3 Preparing Installation Tools

This topic describes the tools for installing the EGW1520 on the wall. If you want to install the EGW1520 on a horizontal surface, place it on the surface.

Table 4-3 Installation tools

4.4 Installing EGW1520

Install EGW1520 on a horizontal surface or on the wall.

Context

Installing EGW1520 on a horizontal surface is easy. You only need to place it on the surface and leave 10 cm space around for heat dissipation. This topic describes how to install EGW1520 on the wall.

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Procedure

Step 1 Mark installation holes on the wall.

Step 2 Drill holes.

Step 3 Fix the swell fixtures.

Step 4 Mount EGW1520 on the wall.

When installing EGW1520 on the wall, do not drop it to prevent damage.

Mark an installation hole, and use a level ruler to measure a distance of 150 mm and mark the second hole.

Choose a drill bit (diameter 4mm) on EGW1520's rear panel. Drill two holes on the marked positions.

Use a claw hammer to strike the two M4 swell fixtures to the holes, and use a Phillips screwdriver to tighten them. Ensure that 5 mm of the swell fixtures is exposed for mounting EGW1520.

Mount EGW1520 to the exposed swell fixtures.

Figure 4-1 shows how to mount EGW1520 on the wall.

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Figure 4-1 Mounting EGW1520 on the wall

----End

4.5 Connecting Cables

This topic describes how to connect cables for the EGW1520. Select a cable connection mode based on the site requirements. Figure 4-2 and Figure 4-3

show the cable connection modes.

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Figure 4-2 ADSL access

The ADSL splitter separates voice and data signals. You can connect the splitter to ADSL and FXO ports of the EGW1520 or connect ADSL ports on user devices to the ADSL port of the EGW1520.

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Figure 4-3 WAN access



The EGW1520 provides four LAN interfaces, which can connect to terminals such as computers and IP phones. To use more than four LAN interfaces, connect the EGW1520 to an Ethernet switch or hub.



The EGW1520 provides one POTS interfaces (PHONE ), which can connect to analog phones or fax machines. To use more than one POTS interfaces, connect the EGW1520 to an IAD.

4.6 Powering On the EGW1520

After cables are connected, press the power button to power on the EGW1520. View the indicators and verify that the EGW1520 is working properly.

Before pressing the power button, ensure that all cables are connected correctly to the ports.

Figure 4-4 shows the location of the power button. If the POWER indicator is on, the

EGW1520 works properly.

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Figure 4-4 Power button

Indicato r

Indication

Description

POWER

Indicates the power status.

Steady on: The EGW1520 is powered on. Off: The EGW1520 is powered off.

ADSL

Indicates the ADSL connection status.

Steady on: The ADSL connection has been established and activated.

Blinking: The ADSL connection is being activated. Off: The EGW1520 is powered off or the ADSL

connection has not been established.

INTERN ET

Indicates the WAN or 3G connection status.

Steady on: The EGW1520 works in routing mode and is connected to the WAN, but no data is transmitted.

Blinking: The EGW1520 works in routing mode and is connected to the WAN, and data is being transmitted.

Off: The EGW1520 works in bridge mode, works in routing mode and is not connected to the WAN, or is not powered on.

WLAN

Indicates the WLAN power or communication status.

Steady on: The WLAN has been enabled but no data is transmitted.

Blinking: The WLAN is enabled and data is being transmitted.

Off: The EGW1520 is powered off or the Wi-Fi function is disabled.

VOIP

Indicates the VoIP status.

Steady on: At least one VoIP user is registered with the SIP server and is in idle status.

Blinking: At least one VoIP user is working. Off: The EGW1520 is powered off or the VoIP user

failed to be registered with the SIP server.

PHONE

Indicates the phone status.

Steady on: The analog phone is picked up. Off: The EGW1520 is powered off or the analog phone is

hung up.

Check the indicator status after the device is powered on. Table 4-4 and Table 4-5 describe the indicators and what they mean.

Table 4-4 Indicators on the EGW1520 front panel

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Table 4-5 EGW1520 indicators on the network port

Indicator

Description

Network port indicator

Steady on: The network port is properly connected. Off: The network port is disconnected. Blinking: Data is being transmitted.

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5 Quick Configuration (UC Mode)

Configuration Item

Description

Country



China



Ireland



New Zealand



Other

Select the country where you are.

Internet access

Internet access mode

ADSL or WAN. WLAN function

Configure the WLAN function and set a password to access the WLAN.

Voice configurati on

Data synchroniz ation server

Set data synchronization server parameters, such as the IP address, port number, and synchronization key. SIP server

Set parameters of the SIP server at the headquarters. The parameters include the address and port number.

FXO

Set an outgoing prefix and determine whether to delete the outgoing prefix for outgoing calls.

This topic describes how to quickly configure the EGW1520 in UC mode. After the EGW1520 is configured, it provides Internet access and basic voice services.

Table 5-1 describes the EGW1520 configuration items.

Table 5-1 Quick configuration (UC mode)

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Prerequisites

Procedure

Step 1 On the web management system, choose Quick Setup from the navigation tree.

You have logged in to the web management system. For the login operations, see 7.7.1 Web

Management.

The page shown in Figure 5-1 is displayed.

Figure 5-2 Selecting a country

Step 2 Select the country where you are, and click .

The page shown in Figure 5-2 is displayed.

Figure 5-3 Configuring the network

Step 3 Configure the network.

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After you click one of the following links, the corresponding configuration procedure is

Parameter

Description

PVC Identifier (VPI)

Virtual path identifier (VPI). The value is provided by the network carrier.

PVC Identifier (VCI)

Virtual channel identifier (VCI). The value is provided by the network carrier.

PPPoE user name

User name used to access the network. The value is provided by the network carrier.

PPPoE Password

Password used to access the network. The value is provided by the network carrier.

WLAN

Whether to enable the WLAN function. This function is enabled by default.

SSID

ID of the EGW1520. The ID is displayed on a Wi-Fi terminal after the terminal finds the EGW1520.

WPA-PSK/WPA2

-PSK Key

Password used to access the WLAN. The password is encrypted through Wi-Fi protected access II-pre-shared key (WPA2-PSK) and WPA-PSK. The EGW1520 uses the PSK to encrypt all communication, which prevents unauthorized listening and access.

displayed.



ADSL



WAN

If ADSL is selected, the configuration procedure is as follows:

1. Set parameters according to Table 5-2.

Table 5-2 Network parameters

2. Click .

The page shown in Figure 5-3 is displayed.

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Figure 5-4 Network configuration complete

Parameter

Description

PPPoE

Indicates that Point-to-Point Protocol over Ethernet (PPPoE) is used.



PPPoE User Name: user name used to access the network. The value is provided by the network carrier.



PPPoE Password: password used to access the network. The value is provided by the network carrier.

Static IP

Indicates that the static IP address of the EGW1520 is used. The setting must be the same as that on the Broadband Remote Access Server (BRAS) of the network carrier.



WAN IP Address: IP address used to access the network. The value is provided by the network carrier.



WAN Subnet mask: subnet mask. The value is provided by the network carrier.The default value is 255.255.255.0.



WAN gateway IP Address: IP address of the gateway. The value is provided by the network carrier.



Primary DNS server: IP address of the primary DNS server. The value is provided by the network carrier.



Secondary DNS server: IP address of the secondary DNS

3. Click .

To save the configuration and exit, click .

If WAN is selected, the configuration procedure is as follows:

1. Click WAN on the page shown in Figure 5-2. Set parameters according to Table 5-3.

Table 5-3 Network parameters

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Parameter

Description

server. The value is provided by the network carrier.

DHCP

As a DHCP client, the EGW1520 obtains the IP address from the DHCP server. The IP address must be the same as that on the BRAS of the network carrier.

WLAN

Indicates whether to enable the WLAN function. This function is enabled by default.

SSID

Indicates the ID of the EGW1520. The ID is displayed on a Wi-Fi terminal after the terminal finds the EGW1520.

WPA-PSK/WPA2-PSK Key

Indicates the password to access the WLAN. The password is encrypted through Wi-Fi protected access II-pre-shared key (WPA2-PSK) and WPA-PSK. The EGW1520 uses the PSK to encrypt all communication, which prevents unauthorized listening and access.

2. Click .

The page shown in Figure 5-4 is displayed.

Figure 5-5 Configuration result

3. Click .

To save the configuration and exit, click .

Step 4 Configure the voice.

1. Click Enable for UC Mode, and click .

The page shown in Figure 5-5 is displayed.

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Figure 5-6 Configuring the SIP server when the UC mode is enabled

Parameter

Description

IP

IP address of the data synchronization server. The value is provided by the enterprise IT administrator.

Port

Port number of the data synchronization server. The value is provided by the enterprise IT administrator. If it is not provided, use the default value 8098.

DataSync Key

Data synchronization key. When the EGW1520 synchronizes data with the data synchronization server, the synchronization keys of the EGW1520 and the data synchronization server must be the same. Otherwise, the EGW1520 denies data synchronization. The value is a string of 1 to 32 characters that can be digits, letters, and special characters. For the detailed configuration rule, contact the enterprise IT administrator.

Working Mode



Master: active server. The server that is added first is the active server.



Slave: standby server.

OptionInterval

Interval for sending heartbeat detection messages to the active and standby server. The value ranges from 30 to 150, in seconds. The default value 90 is recommended.

UC Mode is set to Disable before the device is delivered. The synchronized user data is cleared when the system changes from the UC mode to the common mode.

2. Set parameters according to Table 5-4.

Table 5-4 SIP server parameters

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Parameter

Description

Address Type

IP address or DNS mode. The value is provided by the enterprise IT administrator.

IP/Domain

IP address or DNS domain name of the SIP server. The value is provided by the enterprise IT administrator.

DNS Type

IP address parsing mode of the DNS. This parameter is valid when Address Type is set to Domain.



SRV: A domain name can be mapped to multiple IP addresses. The two IP addresses of the highest priority are used as the IP addresses of the active and standby SIP servers.

NOTE

If you set DNS Type to SRV, you do not need to configure the standby SIP server.



HOST: One domain name corresponds to one IP address. To perform switchover between the active and standby servers, two SIP servers need to be configured.

Server Type

SIP network type inside the enterprise. Generally, set the network type to NGN if the eSpace U1900 is used or IMS if the eSpace U2900 is used. For details, contact the enterprise IT administrator.

Port

Port number of the SIP server. The value is provided by the enterprise IT administrator. If it is not provided, use the default value 5060.

Expiration Time

Interval for the registration group to register POTS users in the group with the SIP server. The value ranges from 0 to 14400, in seconds. The default value 360 is recommended.

3. Click .

The page shown in Figure 5-6 is displayed.

Figure 5-7 Setting an outgoing prefix

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4. Click , and set parameters according to Table 5-5.

Parameter

Description

Prefix

Outgoing prefix for the FXO port. The value is a number of 1 to 30 digits. An intra-office user can dial the outgoing prefix to make an outgoing call through the FXO port. For details, see Description. The outgoing prefix must be the same as that set on the SIP server at the headquarters.

Property



Remove: The outgoing prefix is deleted for outgoing calls. Assume that the outgoing prefix is 0 and the number of an outer-office

user is 12345678. To call this user, an intra-office user dials

012345678.



Retain: The outgoing prefix is not deleted for outgoing calls. This mode is applicable to the situation where the outgoing prefix is the same as the first digit in the outer-office number.

Assume that the outgoing prefix is 1 and the number of an outer-office user is 12345678. To call this user, an intra-office user dials

12345678.

NOTE

The number that the PSTN carrier allocates to the FXO port is displayed to the called party.

Table 5-5 FXO prefix parameters

To reset the outgoing prefix parameters after the configuration, select the configuration items and click

to delete the original settings.

5. Click .

The page shown in Figure 5-7 is displayed.

Figure 5-8 Configuration complete

6. Click to finish the settings.

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6 Quick Configuration (Common Mode)

Configuration Item

Description

Country



China



Ireland



New Zealand



Other

Select the country where you are.

Internet access

Internet access mode

ADSL or WAN. WLAN function

Configure the WLAN function and set a password to access the WLAN.

Voice

SIP server

Set SIP server parameters, such as the address and port number.

FXO

Set an outgoing prefix and determine whether to delete the outgoing prefix for outgoing calls.

Registratio n group

Set phone registration group parameters, such as the registration type and mode.

Analog phone

Set analog phone parameters, such as the internal number and external number.

IP phone

Set IP phone parameters, such as the internal number and external number.

This topic describes how to quickly configure the EGW1520 in common mode. After the EGW1520 is configured, it provides Internet access and basic voice services.

Table 6-1 describes the EGW1520 configuration items.

Table 6-1 Quick configuration (common mode)

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Prerequisites

Procedure

Step 1 On the web management system, choose Quick Setup from the navigation tree.

You have logged in to the web management system. For the login operations, see 7.7.1 Web

Management.

The page shown in Figure 6-1 is displayed.

Figure 6-2 Selecting a country

Step 2 Select the country where you are, and click .

The page shown in Figure 6-2 is displayed.

Figure 6-3 Configuring the network

Step 3 Configure the network.

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After you click one of the following links, the corresponding configuration procedure is

Parameter

Description

PVC Identifier (VPI)

Virtual path identifier (VPI). The value is provided by the network carrier.

PVC Identifier (VCI)

Virtual channel identifier (VCI). The value is provided by the network carrier.

PPPoE user name

User name used to access the network. The value is provided by the network carrier.

PPPoE Password

Password used to access the network. The value is provided by the network carrier.

WLAN

Whether to enable the WLAN function. This function is enabled by default.

SSID

ID of the EGW1520. The ID is displayed on a Wi-Fi terminal after the terminal finds the EGW1520.

WPA-PSK/WPA2

-PSK Key

Password used to access the WLAN. The password is encrypted through Wi-Fi protected access II-pre-shared key (WPA2-PSK) and WPA-PSK. The EGW1520 uses the PSK to encrypt all communication, which prevents unauthorized listening and access.

displayed.



ADSL



WAN

If ADSL is selected, the configuration procedure is as follows:

1. Set parameters according to Table 6-2.

Table 6-2 Network parameters

2. Click .

The page shown in Figure 6-3 is displayed.

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Figure 6-4 Network configuration complete

Parameter

Description

PPPoE

Indicates that Point-to-Point Protocol over Ethernet (PPPoE) is used.



PPPoE User Name: user name used to access the network. The value is provided by the network carrier.



PPPoE Password: password used to access the network. The value is provided by the network carrier.

Static IP

Indicates that the static IP address of the EGW1520 is used. The setting must be the same as that on the Broadband Remote Access Server (BRAS) of the network carrier.



WAN IP Address: IP address used to access the network. The value is provided by the network carrier.



WAN Subnet mask: subnet mask. The value is provided by the network carrier.The default value is 255.255.255.0.



WAN gateway IP Address: IP address of the gateway. The value is provided by the network carrier.



Primary DNS server: IP address of the primary domain name server (DNS) server. The value is provided by the network carrier.



Secondary DNS server: IP address of the secondary DNS

3. Click .

To save the configuration and exit, click .

If WAN is selected, the configuration procedure is as follows:

1. Click WAN on the page shown in Figure 6-2. Set parameters according to Table 6-3.

Table 6-3 Network parameters

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Parameter

Description

server. The value is provided by the network carrier.

DHCP

As a DHCP client, the EGW1520 obtains the IP address from the DHCP server. The IP address must be the same as that on the BRAS of the network carrier.

WLAN

Indicates whether to enable the WLAN function. This function is enabled by default.

SSID

Indicates the ID of the EGW1520. The ID is displayed on a Wi-Fi terminal after the terminal finds the EGW1520.

WPA-PSK/WPA2-PSK Key

Indicates the password used to access the WLAN. The password is encrypted through Wi-Fi protected access II-pre-shared key (WPA2-PSK) and WPA-PSK. The EGW1520 uses the PSK to encrypt all communication, which prevents unauthorized listening and access.

2. Click .

The page shown in Figure 6-4 is displayed.

Figure 6-5 Configuration result

3. Click .

To save the configuration and exit, click .

Step 4 Configure the voice.

1. Click .

The page shown in Figure 6-5 is displayed.

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Figure 6-6 Adding an SIP server

Parameter

Description

Working Mode



Master: active server. The server that is added first is the active server.



Slave: standby server.

Recovery

Whether to enable the failback function. When the active server fails, resources and services will be automatically switched to the standby server. If this function is enabled, resources and services will be automatically switched back to the original active server after the original active server has been recovered.

OptionInterval

Interval for sending the option messages to the active server. The value ranges from 10 to 900, in seconds. The default value 60 is recommended.

NOTE

The option messages are sent to the active server only, and therefore this parameter is valid only for the active server.

Address Type

IP address or DNS mode. The value is provided by the network carrier.

IP/Domain

IP address or DNS domain name of the SIP server. The value is provided by the network carrier.

DNS Type

IP address parsing mode of the DNS. This parameter is valid when Address Type is set to Domain.



SRV: A domain name can be mapped to multiple IP addresses. The two IP addresses of the highest priority are used as the IP addresses of the active and standby SIP servers.

NOTE

If you set DNS Type to SRV, you do not need to configure the standby SIP server.



HOST: One domain name corresponds to one IP address. To

UC Mode is set to Disable before the device is delivered. The synchronized user data is cleared when the system changes from the UC mode to the common mode.

2. Set parameters according to Table 6-4.

Table 6-4 SIP server parameters

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Parameter

Description

perform switchover between the active and standby servers, two SIP servers need to be configured.

Server Type

SIP network type. The value is provided by the network carrier.

Port

Port number of the SIP server. The value is provided by the network carrier. The default value 5060 is recommended.

Expiration Time

Timeout interval for the registration group to register with the SIP server. The value ranges from 0 to 14400, in seconds. The default value 360 is recommended.

Parameter

Description

Prefix

Outgoing prefix for the FXO port. The value is a number of 1 to 30 digits. An intra-office user can dial the outgoing prefix to make an outgoing call through the FXO port.

NOTE



A maximum of 16 outgoing prefixes can be configured for the FXO port on the EGW1520. An intra-office user can use any one of the outgoing prefixes to make an outgoing call through the FXO port.



The outgoing prefix cannot conflict with internal numbers and emergency numbers. If an internal number is the same as the outgoing prefix plus an outer-office number, the internal user is connected.

Property



Remove: The outgoing prefix is deleted for outgoing calls. Assume that the outgoing prefix is 0 and the number of an outer-office

user is 12345678. To call this user, an intra-office user dials

012345678.



Retain: The outgoing prefix is not deleted for outgoing calls. This

3. Click .

The page shown in Figure 6-6 is displayed.

Figure 6-7 Setting an outgoing prefix

4. Click , and set parameters according to Table 6-5.

Table 6-5 FXO parameters

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Parameter

Description

mode is applicable to the situation where the outgoing prefix is the same as the first digit in the outer-office number.

Assume that the outgoing prefix is 1 and the number of an outer-office user is 12345678. To call this user, an intra-office user dials

12345678.

NOTE

The number that the PSTN carrier allocates to the FXO port is displayed to the called party.

Parameter

Description

Register Type

Registration type. The value is provided by the network carrier.



Single: Only one user can exist in the registration group. The value of Register Type is Single for the NGN network.



Group: Multiple users can exist in the registration group.



Wildcard: Wildcard registration group. This registration group registers with the IMS or NGN based on certain wildcard rules, which are provided by the network carrier.

Authentication

Authentication mode used when a registration group registers with the IMS or NGN. The value is provided by the network carrier.

To reset the outgoing prefix parameters after the configuration, select the configuration items and click

to delete the original settings.

5. Click .

The page shown in Figure 6-7 is displayed.

Figure 6-8 Configuring a registration group

Configure a registration group when the softswitch is required for intra-office users to make outgoing calls.

6. Click , and set parameters according to Table 6-6.

Table 6-6 Registration group parameters

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Parameter

Description

Password

Authentication password used when a registration group registers with the IMS or NGN. The value is provided by the network carrier.

Sip Trunk ID

SIP trunk ID used when a registration group registers with the IMS or NGN. The value is provided by the network carrier.

Sip Trunk Name

User name used when a registration group registers with the IMS or NGN. The value is provided by the network carrier.

IMS Domain

IMS domain name used when a registration group registers with the IMS. The value is provided by the network carrier.

Parameter

Description

Port

Port number used by the analog phone to access the EGW1520. Value 1 indicates the PHONE1 port on the EGW1520, value 2 indicates the PHONE2 port, and the rest can be deducted by analogy.

NOTE

You are advised to use the PHONE1 port because it supports the power-off survival function.

Internal No

The internal number is used for the calls between intra-office subscribers. The value is a number of 1 to 30 digits, which can be user-defined. It cannot conflict with any service prefixes, emergency numbers, outer-office numbers, or other intra-office numbers.

Registration Group

Registration group ID that is used when a POTS phone registers with the IMS/NGN network.

External No

External number for outgoing and incoming calls. The value is provided by the network carrier. This parameter is valid after you set

7. Click .

The page shown in Figure 6-8 is displayed.

Figure 6-9 Configuring an analog phone

8. Click , and set parameters according to Table 6-7.

Table 6-7 Analog phone parameters

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Parameter

Description

the SIP Group parameter. The external number cannot conflict with any service prefixes, emergency numbers, outer-office numbers, or other intra-office numbers.

NOTE

The external number must correspond to Sip Trunk ID. Registration Group bound to External No must correspond to Sip Trunk ID. If Sip Trunk ID starts with +, change + to 00 when you configure External No.

Parameter

Description

Internal No

The internal number is used for the calls between intra-office subscribers. The value is a number of 1 to 30 digits, which can be user-defined. It cannot conflict with any service prefixes, emergency numbers, outer-office numbers, or other intra-office numbers.

Authentication

Authentication mode used when a SIP user registers with the EGW1520. The value must be the same as that configured on the IP phone.

Password

Authentication password used when a SIP user registers with the EGW1520. The value must be the same as that configured on the IP phone.

Registration Group

Registration group ID that is used when an IP phone registers with the IMS/NGN network.

NOTE

If the required registration group does not exist, choose Voice > SIP Server,

9. Click .

The page shown in Figure 6-9 is displayed.

Figure 6-10 Configuring an IP Phone

10. Click , and set parameters according to Table 6-8.

Table 6-8 IP phone parameters

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Parameter

Description

and click the Registration Group tab to add it.

External No

External number for outgoing and incoming calls. The value is provided by the network carrier. This parameter is valid after you set the Registration Group parameter. The external number cannot conflict with any service prefixes, emergency numbers, outer-office numbers, or other intra-office numbers.

NOTE

The external number must correspond to Sip Trunk ID. Registration Group bound to External No must correspond to Sip Trunk ID. If Sip Trunk ID starts with +, change + to 00 when you configure External No.



To add IP phones in batches, click and proceed as prompted.



To change the configuration of a saved IP phone, select the IP phone and reset it.

11. Click .

The page shown in Figure 6-10 is displayed.

Figure 6-11 Configuration complete

12. Click to finish the configuration.

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7 Feature Description and Implementation

About This Chapter

This topic describes EGW1520 features and feature implementation.

7.1 Feature List

This topic describes EGW1520 features.

7.2 Connection Modes

The EGW1520 connects to the IP network using an ADSL or a WAN port. The ADSL and WAN ports cannot be used at the same time or back each other up. If the ADSL and WAN ports are unavailable, you can insert a 3G data card to the universal serial bus (USB) port to access the 3G network.

7.3 Voice (UC Mode)

In the eSpace UC solution, the EGW1520 is deployed at a small branch of an enterprise to provide network access functions for the small branch. Phones at the branch are registered with the SIP server on the central node at the headquarters. Numbers of the branch users are allocated by the SIP server at the headquarters and synchronized by the EGW1520 with the data synchronization server. The EGW1520 can also function as a trunking gateway to implement incoming and outgoing call functions through the FXO port for the local PSTN.

7.4 Voice(Common Mode)

EGW1520 can function as a SIP trunk access device or a small-scale Internet protocol-private branch exchange (IP-PBX). It provides basic voice services and supplementary services.

7.5 Data

This topic describes EGW1520 data features and how to configure the features.

7.6 Security

This topic describes EGW1520 security features.

7.7 Operations and Maintenance

The EGW1520 can be managed on web pages or in TR-069 mode.

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7.1 Feature List

ADSL

Descriptio n

The EGW1520 uses an Asymmetric Digital Subscriber Line (ADSL) port to connect to the upstream network. ADSL is an asymmetric transmission technology. It enables high-speed data transmission over analog telephone lines by using idle high frequencies and several modulation methods.

Specificati on



Modes for connecting to Internet: route and bridge.



Support for the static IP address and obtaining IP addresses by means of DHCP, PPPoE, PPPoA, and IPoA.



Point-to-Point Protocol (PPP) authentication modes: Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP).



ADSL Seamless Rate Adaptation (SRA).

Standards supported by ADSL:



ITU-T G.992.1 Annex A



ITU-T G.992.3 (ADSL 2) Annex Annex A, L and M



ITU-T G.992.5 (ADSL 2+) Annex A



ITU-T G.992.5 (ADSL 2+) Annex M

Limitation



The voice service and the data service must use the same ADSL Permanent Virtual Circuits (PVC) channel.



The EGW1520 connects to the IP network using an ADSL or a WAN port. The ADSL and WAN ports cannot be used at the same time or back each other up.

Related Topics

7.2.1 ADSL

WAN

Descriptio n

The EGW1520 uses a WAN port to connect to the upstream network. The ADSL and WAN ports cannot be used at the same time or back each other up.

Specificati on



One 10/100/1000 Mbit/s self-adaptive WAN port.



Modes of obtaining IP addresses: static IP address configuration, DHCP server, and PPPoE.



Standards supported by the WAN port:

− MAC Address (IEEE 802.3)

− Internet Protocol v4 (RFC 791)

− Address Resolution Protocol (RFC

826)

− Internet Control Message Protocol

(RFC 792)

− An Ethernet Address Resolution

Protocol (RFC 0826)

This topic describes EGW1520 features.

Access Mode

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− A Standard for the Transmission of IP

Datagrams over Ethernet Networks (RFC894)

− A Standard for the Transmission of IP

Datagrams over IEEE 802 Networks (RFC1042)

− DHCP (RFC 2131) TCP

Transmission Control Protocol (RFC793)

− UDP User Datagram Protocol

(RFC768)

Limitation



The WAN port supports half-duplex and full-duplex self adaptation, but cannot be forced to use full duplex or half duplex.



The EGW1520 connects to the IP network using an ADSL or a WAN port. The ADSL and WAN ports cannot be used at the same time or back each other up.



IPv6 is not supported.

Related Topics

7.2.2 WAN

3G

Descriptio n

Generally, the EGW1520 connects to the IP network using an ADSL or a WAN port. When the ADSL or WAN port is unavailable, the EGW1520 can use a 3G data card (based on the USB port) to access the 3G network to transmit voice and data (excluding the fax service).

Specificati on

One USB port (for 3G data cards).

Limitation



The EGW1520 supports the following 3G data cards: TD SCDMA

− Huawei ET302 with the software

version of 11.100.05.00.00

− Huawei ET127 with the software

version of 11.101.01.36.00

WCDMA

− Huawei K3765 with the software

version of 11.126.03.06.00

− Huawei E176G with the software

version of 11.126.03.02.00



The 3G network supports the backup function and does not support the fax service, Demilitarized Zone (DMZ) host, and virtual servers.

Related Topics

7.2.3 3G

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Voice

Voice access

UC mode

Descripti on

The EGW1520 is combined with the eSpace UC solution. In UC mode, the EGW1520 can be registered with multiple SIP servers at the same time. Phones connecting to the EGW1520 are registered with the server on the central node of the headquarters. All calls are processed by the server of the headquarters.

When the EGW1520 is disconnected from both the active and standby SIP servers, it automatically switches to the local survival mode. It then functions as a local SIP server to register internal users and process calls.

The EGW1520 can function as a landing gateway for the local PSTN to process incoming and outgoing calls, which reduces the enterprise's toll call costs.

Specifica tion



A maximum of 20 SIP users.



One FXS port, connecting to one POTS user.



A maximum of 8-channel users (SIP users and POTS users) can simultaneously initiate calls. Standards supported by voice service:

− G.711 A, G.711 u, G.729,

G.726, and G.722

− SIP (RFC 3261–3265)

− SIP Session Timers (RFC

4028)

− SDP (RFC 2327)

− RTP or RTCP

− RFC 2833

Limitatio n

None.

Related Topics

Description Configuration

Common mode

Descripti on

As an access layer device, the EGW1520 registers with the softswitch (NGN/IMS) through a SIP trunk and cooperates with the softswitch to process SIP signaling interaction. The EGW1520 can also function as a small-scale Internet Protocol Private Branch Exchange (IP PBX), implementing functions such as IP Phone user registration, call control, and protocol processing.

Specifica tion



A maximum of 20 SIP users.



One FXS port, connecting to one POTS user.



A maximum of 8-channel users (SIP users and POTS users) can simultaneously initiate calls. Standards supported by voice service:

− G.711 A, G.711 u, G.729,

G.726, and G.722

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− SIP (RFC 3261–3265)

− SIP Session Timers (RFC

4028)

− SDP (RFC 2327)

− RTP or RTCP

− RFC 2833

Limitatio n

For details, see Service Conflicts.

Related Topics

7.4.1 Voice Access and IP PBX

FXO port Descripti

on

EGW1520 provides four foreign exchange office (FXO) ports used to connect to PSTN networks. An intra-office user dials the outgoing prefix and an outer-office user's number to make an outgoing call through an FXO port. An outer-office user dials the number that the PSTN network carrier allocates to the FXO port to make an incoming call. EGW1520 supports the switchboard, DDI, and dedicated line functions. By default, the switchboard function is enabled.

Specifica tion

Four FXO ports..

Limitatio n



The FXO port supports only the one-stage dialing mode.



Each FXO port allows one user to make an outgoing or incoming call through the FXO port at the same time.

Related Topics

Description.

Dual homing Descripti

on

Dual homing is a disaster recovery mechanism for emergency communication, for example, in case of a SoftSwitch breakdown. Functioning as a voice access device, the EGW1520 can register with two SIP servers at the same time. When the active SIP server is faulty, the EGW1520 switches services to the standby SIP server. When the active SIP server is recovered, the EGW1520 switches services back to it.

Specifica tion



Two SIP servers, working in active/standby mode.



IP addresses of two SIP servers with the highest priority: obtained using the Domain Name System Service (DNS SRV).

Limitatio n

The priority for obtaining SIP server IP addresses using the DNS SRV must be configured on the DNS Server.

Related Topics

For details on how to configure the priority, see SIP

Server in Adding Voice Users.

Power-off

Descripti

The EGW1520 provides a PSTN Power-off survival port

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survival

on

with an RJ-11 connector. When a power off occurs, the analog phone that connects to the PHONE1 port can make outgoing calls using the PSTN emergency line.

Specifica tion

One PSTN Power-off survival port.

Limitatio n



The Power-off survival function is available only when a power off occurs.



Only the Analog Phone that connects to the PHONE port supports Power-off survival function.

Related Topics

7.4.3 Power-off Survival

Voice quality

Descripti on

Voice quality technologies are used by the EGW1520 to ensure voice transmission quality and service effectiveness.

Specifica tion

Voice quality technologies: voice activity detection (VAD), comfort noise generator (CNG), echo cancellation (EC), packet loss compensation, and jitter buffer.



VAD The EGW1520 detects silent periods in voice signal

streams, and removes data from the silent periods to conserve bandwidth resources without reducing service quality.



CNG The CNG is used with the VAD. When the VAD

function is enabled and no packet is sent during the silent periods, the listener may consider that the call has been disconnected. To avoid this situation, the EGW1520 enables the CNG function on the receiver end. The CNG technology complies with RFC 3389.



EC An echo is quickly transmitted to a listener during a

local call because the end-to-end delay is short, and the listener may not hear the echo. However, the end-to-end delay is long during an international call, and the EC must be enabled. The EGW1520 EC technology complies with ITU-T G.168.



Packet loss compensation Packets are often lost on the connectionless IP

network as a result of network congestion, buffer overflow, or error codes. A packet loss compensation algorithm is used to minimize the effects of packet loss. Lost frames can be reconstructed during decoding based on the voice context, which ensures the quality of the received voice.



Jitter buffer With this function, received packets can be cached

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and then retrieved and processed to remove jitter.

Limitatio n

N/A

Related Topics

7.4.5 Voice Parameters

Fax service

Descripti on

Fax is a form of telegraphy for the transmission of fixed images, with or without halftones, to be reproduced at another location in hard copy form. In ITU-RV.662, faxing is defined as a form of telecommunication for the reproduction at a distance of graphic documents in the form of other graphic documents geometrically similar to the original.

Specifica tion

Standards supported by fax service:



One FXS ports for fax machines



T.30



T.38



V.17/V.21/V.27/V.29/V.34

Limitatio n

N/A

Related Topics

7.4.4 Fax Service

DigitMap

Descripti on

The digitmap is a dialing rule used by the EGW1520 to detect and report digit events received on a termination. The digitmap can be used to eliminate the post-dial delay.

NOTE

The post-dial delay is the time interval between "end of dialing" by a user and the reception (by the same user) of the call progress signaling generated by the exchange serving this customer. The call progressing signals can be a dial tone, a recorded announcement, or the abandoning of the call.

Specifica tion

Maximum length of the data field that can be configured by a user: 128 bytes.

Limitatio n

N/A

Related Topics

For details, see Table 7-29 and Table 7-31.

Codec Descripti

on

A codec is a device or computer program capable of encoding or decoding audio signals to improve the network usage and user capacity.

Specifica tion



G.711 A/u, G.729, G.726, and G.722.



Multiple codecs used at the same time.



Adjustable priority for codecs.



Adjustable packetization interval for codecs.

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

A maximum of 4-channel G.711, 4-channel G.729, 2-channel G.726, or 2-channel G.722.

Limitatio n

A codec cannot be automatically switched during a conversation, but it can be switched through signaling negotiation.

DTMF Descripti

on

Dual tone multi-frequency (DTMF) is the signal to the phone company that you generate when you press an ordinary telephone's touch keys.

Specifica tion



DTMF detection and generation.



RFC 2833.

Limitatio n

The encryption function of RFC 2833 is not supported.

Call record

Descripti on

There is a record for each incoming or outgoing call.

Specifica tion



A maximum of 5000 latest records.



Records of call start time, call end time, calling number, and called number.

Limitatio n

Call records can be downloaded from the web management system but cannot be viewed directly on it.

Related Topics

9.8 Downloading Call Records

Gain adjustment

Descripti on

The gain can be adjusted to enhance useful signals when signals are not strong enough on the line and affected by other electrical noises.

Specifica tion

Send and receive gain is adjustable from –96 dB to +32 dB.

Limitatio n

N/A

Related Topics

7.4.5 Voice Parameters

Supplementary services

Descripti on

To modify or supplement basic communication services, provide supplementary services with basic communication services.

Specifica tion

For details about supplementary services supported by the EGW1520, see Configuring and Using Voice

Services.

Limitatio n

For details, see Service Conflicts.

Related Topics

Enabling Voice Services Configuring and Using Voice Services

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Data

LAN

Descriptio n

Terminals like computers and IP phones that connect to the EGW1520 LAN ports can set up a small local area network (LAN) to enable the following services and functions: file management, application sharing, printer sharing, schedule, email, and fax.

Specificati on



Four 10/100 Mbit/s self-adaptive LAN ports.



Default IP address of LAN ports: 192.168.1.1; subnet mask:

255.255.255.0.



DHCP server function, allocating IP addresses to computers and IP phones that connect to LAN ports.



Standards supported by LAN ports:

− MAC Address (IEEE 802.3)

− IPv4 Internet Protocol v4 (RFC 791)

− ARP Address Resolution Protocol

(RFC 826)

− ICMP Internet Control Message

Protocol (RFC 792)

− An Ethernet Address Resolution

Protocol (RFC 0826)

− A Standard for the Transmission of IP

Datagrams over Ethernet Networks (RFC 0894)

− A Standard for the Transmission of IP

Datagrams over IEEE 802 Networks (RFC 1042)

− DHCP (RFC 2131), TCP

Transmission Control Protocol (RFC

793)

− UDP User Datagram Protocol (RFC

768)

Limitation



The LAN port supports half-duplex and full-duplex self adaptation, but cannot be forced to use full duplex or half duplex.



IPv6 is not supported.

Related Topics

7.5.1 LAN

DHCP Descriptio

n

DHCP is a protocol for dynamically managing and configuring users in a centralized manner. It uses the Client/Server structure. A DHCP client sends the DHCP server a request to apply for parameter settings, including the IP address, subnet mask, and default gateway. The EGW1520 can function as a DHCP server, DHCP relay, or DHCP client.

Specificati on



As a DHCP server, the EGW1520 can configure an IP address pool. The default IP address ranges from 192.168.1.2 to

192.168.1.254.

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

As a DHCP relay, the EGW1520 complies with RFC 3361.



As a DHCP client, the EGW1520 supports Option42/43/60/61/66/67/120/125/150.

Limitation

N/A

Related Topics

7.5.2 DHCP

WLAN

Descriptio n

The EGW1520 allows Wi-Fi services to connect to the wireless network. This provides small enterprises with a network solution integrating wired and wireless technologies.

Specificati on



IEEE802.11b, IEEE802.11g, and IEEE802.11n are supported.

− IEEE802.11b, with the maximum

transmission rate of 11 Mbit/s and frequency of 2.4 GHz

− IEEE802.11g, with the maximum

transmission rate of 54 Mbit/s and frequency of 2.4 GHz (compatible with IEEE802.11b)

− IEEE802.11n, with the maximum

transmission rate of 300 Mbit/s and Multi-Input Multi-Output (MIMO) supported



A maximum of 16 WiFi terminals can be connected.



Four service set identifiers (SSIDs) are supported and SSID broadcast and hiding are supported.

− The default value of the primary

SSID is eSpace EGW_XXXX.

− Three subordinate SSIDs are eSpace

EGW_XXXX_S1, eSpace EGW_XXXX_S2, and eSpace EGW_XXXX_S3. XXXX is the last four bits in the WLAN MAC address.



A maximum of 16 MAC addresses can be filtered.



Wi-Fi authentication standards:

− 64 bit or 128 bit Wired Equivalent

Privacy (WEP)

− WPA-PSK, WPA2-PSK, and

Combination of WPA-PSK and WPA2-PSK

− Maximum transmit power:

− 802.11b/g/n (SISO): 16±2 dBm

− 802.11n (MIMO): 18±2 dBm

− Wi-Fi Protected Setup (WPS)

Limitation

Wi-Fi bridging is not supported.

Related Topics

7.5.3 WLAN

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DNS

Descriptio n

The DNS specifies meaningful names for devices on a network. The DNS server defines the mapping between domain names and devices' IP addresses. The EGW1520 can function as a DNS client to resolve domain names on the DNS server.

Specificati on

N/A Limitation

N/A

Related Topics

7.5.4 DNS

Static route

Descriptio n

The static route can improve the network performance and ensure the bandwidth for critical networks. The static route cannot adjust to network topology changes. When a network fault occurs or the network topology changes, the static route may become unreachable, resulting in connection failure. If the static route is unreachable, the static route must be modified manually.

Specificati on

A maximum of 32 static routes. Limitation

N/A

Related Topics

7.5.5 Static Route

VLAN

Descriptio n

The VLAN technology divides a LAN to multiple virtual LANs (VLANs). Each VLAN is a broadcast domain. Communication between hosts in a VLAN is the same as that in a LAN. VLANs cannot communicate with each other directly. The EGW1520 supports port-based VLANs. LAN ports are assigned to different VLANs, which separates users and creates virtual work groups.

Specificati on

A maximum of four ports used to assign VLANs Limitation

The VLAN ports support only the port-based VLANs.

Related Topics

7.5.8 VLAN

QoS

Descriptio n

The EGW1520 provides a comprehensive quality of service (QoS) mechanism. QoS policies can be customized to ensure precedence of core services. In addition, the EGW1520 limits bandwidth for ordinary services (such as web upload) and saves it for core services (such as voice streams). The EGW1520 supports the following Diff-Serv-based QoS technologies: priority mark, congestion management, and traffic policy.

Specificati on



VLAN Tag marked with 802.1p/q priorities.



DSCP priority.



Upstream and downstream traffic limits are supported.

Limitation

3G port does not support QoS.

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Topics

Voice packet priority

Descriptio n

Voice packets can be placed in the priority queue for prior forwarding.

Specificati on

N/A Limitation

N/A

Related Topics

7.5.9 QoS

Layer 2 switch

Descriptio n

When the EGW1520 is in Bridge mode, it has the layer 2 switch function. Computers that are connected to the EGW1520 can use the dialing software to access the IP network.

Specificati on

N/A Limitation

N/A

Related Topics

7.2.1 ADSL

NTP

Descriptio n

Network Time Protocol (NTP) is a protocol for time synchronization. It enables a device to synchronize time with its server or clock source (such as a quartz clock or Global Positioning System). NTP provides accurate time correction (time difference over a LAN smaller than 1 millisecond; time difference over a WAN smaller than tens of milliseconds), and prevents protocol attacks by means of encryption.

The EGW1520 is used as the NTP client to synchronize the time with that of the NTP server.

Specificati on

Two NTP servers, working in active/standby mode.

Limitation

The EGW1520 does not save the time. After the EGW1520 restarts, the time is restored to the factory setting and needs to be synchronized with the NTP server.

Related Topics

9.1 Configuring the System Time

VPN Descriptio

n

Virtual Private Network (VPN) is a virtual network established based on the existing public network. A VPN is used for an enterprise or customer group. EGW1520, used as an access gateway for a small-scale branch network, can connect to the headquarters network using IPSec VPN tunnels.

Specificati on



EGW1520 can connect to the headquarters using IPSec VPN tunnels.



EGW1520 uses IPSec to set up site-to-site tunnels with the

Security

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headquarters. As the initiator of VPN tunnels, EGW1520 uses the peer IP address or fully qualified domain name (FQDN) as the ID for IKE negotiation.

Limitation



A maximum of 6 IPSec VPN tunnels are supported.



The throughput of the IPSec VPN tunnel is not lower than 2 Mbit/s.



A maximum of 32 concurrent connections are supported in an IPSec VPN.

Related Topics

7.5.6 VPN

NAT

Descriptio n

Network address translation (NAT) is the process of converting a private IP address in an IP packet header to a public IP address. This function enables computers with private IP addresses to connect to a public network. NAT solves the problem of insufficient IP addresses and prevents the attack from other networks, hiding and protecting computers on the private network.

Specificati on

A maximum of 1024 NAT table entries. Limitation

N/A

Related Topics

7.6.1 NAT

7.2.1 ADSL

7.2.2 WAN

SIP ALG

Descriptio n

NAT enables one or more private hosts to use a public IP address to connect to a public network.NAT works in the transport layer, which is transparent to the application layer, so it is difficult for the SIP application to traverse the NAT device. The EGW1520 supports the SIP application level gateway (ALG), which solves the NAT traversal problem for SIP.

Specificati on

N/A Limitation

N/A

Related Topics

7.6.1 NAT

Incomin g packet filter

Descriptio n

If the firewall on the LAN or WAN side is enabled, all the packets transmitted through LAN or WAN ports to the EGW1520 will be blocked. You can configure the incoming packet filtering function to allow specified packets to be transmitted to the EGW1520.

Specificati on

N/A Limitation

N/A

Related Topics

7.6.2 Incoming Packet Filter

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Outgoin g packet filter

Descriptio n

The system allows all packets to be sent to the upstream network through the LAN ports. You can configure the outgoing packet filter to prevent certain packets from being sent to the upstream network using the LAN ports.

Specificati on

N/A Limitation

N/A

Related Topics

7.6.3 Outgoing Packet Filter

MAC address filter

Descriptio n

If the ADSL service is in Bridge mode, you can configure MAC address filter to prevent the ADSL port from forwarding certain data frames.

Specificati on

N/A Limitation

N/A

Related Topics

7.6.4 MAC Address Filter

URL filter

Descriptio n

The EGW1520 uses the URL filter to limit users' access to specified websites.

Specificati on



Maximum number of URLs to be filtered at the same time: 100



Maximum length of each URL: 128 bytes



Full match and partial match

Limitation

Wildcards, for example, using * for full match, are not allowed in filtering rules.

Related Topics

7.6.5 URL Filter

Virtual server

Descriptio n

A virtual server enables external users to access internal servers on the private network. You can configure a public server on the private network to provide web access and FTP download services.

Specificati on

N/A

Limitation

This function cannot be enabled when the EGW1520 connects to the 3G network.

Related Topics

7.6.6 Virtual Server

DMZ

Descriptio n

A virtual server enables external users to access internal servers on the private network. When multiple services are running on internal servers, several virtual servers must be configured, which makes the configuration complicated. To simplify the configuration, configure only the IP addresses for internal servers

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in the DMZ. Because all ports are open in the DMZ, it increases the security risk for internal servers.

Specificati on

Only one internal server in the DMZ is supported.

Limitation

This function cannot be enabled when the EGW1520 connects to the 3G network.

Related Topics

7.6.7 DMZ

Configu ration file encrypti on

Descriptio n

The EGW1520 can encrypt sensitive information in configuration files, such as user name and password.

Specificati on

The EGW1520 can encrypt user names and passwords for:



Logging in to the web management system



PPPoE



PPPoA



WLAN



Accessing the 3G network



TR-069 ACS



SIP user



NTP Server

Limitation

Manual modification on the configuration file is not supported.

Related Topics

9.2 Managing the Configuration File

HTTPS

Descriptio n

The web browser interacts with the EGW1520 using HTTPS, which ensures user information security.

Specificati on

N/A Limitation

N/A

Related Topics

7.7.1 Web Management

Web

Descriptio n

The EGW1520 provides web management system for users to easily configure, diagnose, and upgrade the EGW1520.

Specificati on



HTTPS



HTTP

Limitation



Operating system: Windows XP or later



Browser: Microsoft Internet Explorer 6.0 or later



Resolution: 1024 x 768 or higher

Operations and Maintenance

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Related Topics

7.7.1 Web Management Web parameters reference

TR-069

Descriptio n

Technical Report 069 (TR-069) is a technical specification developed by the DSL Forum. TR-069 is short for CPE WAN Management Protocol (CWMP). As an application-layer protocol for remotely managing end devices, TR-069 enables the Application Control Server (ACS) to remotely manage and maintain the EGW1520.

Specificati on



TR-069



TR-098



TR-104

Limitation

N/A

Related Topics

7.7.2 TR-069 TR-069 parameters reference

7.2 Connection Modes

The EGW1520 connects to the IP network using an ADSL or a WAN port. The ADSL and WAN ports cannot be used at the same time or back each other up. If the ADSL and WAN ports are unavailable, you can insert a 3G data card to the universal serial bus (USB) port to access the 3G network.

7.2.1 ADSL

The EGW1520 uses an ADSL port to connect to the upstream network. The ADSL uses high frequencies that are not used by voice phone calls and several modulation methods to achieve high-speed data transmission over twisted-pair copper phone lines.

Description

This topic describes the principle, implementation, specification, and limitation for the EGW1520 to connect to the upstream network by using the ADSL.

Principle

Using the frequency-division multiplexing (FDM) technology, the ADSL divides a regular telephone line into three separate channels for the telephone, upstream link, and downstream link. Using the discrete multi-tone (DMT) technology, the ADSL divides the frequency band from 0 kHz to 1.1 MHz on the telephone line into 256 sub frequency bands, each of which occupies a 4.3 kHz bandwidth.



4 kHz or lower: Provides traditional telephone services.



20 kHz to 138 kHz: Transmits upstream signals.



138 kHz to 1.1 MHz: Transmits downstream signals.

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Telephone signals are transmitted at the frequency band from 0 kHz to 4 kHz, while signals of ADSL services are transmitted at other frequency bands.

ADSL in practical application are deployed as follows:



On the service provider side, connect the telephone lines that have enabled the ADSL service to a digital subscriber line access multiplexer (DSLAM).



On the user side, use an ADSL modem to connect telephone and data lines.

The ADSL uses high frequency signals. To prevent noise disturbance to calls, splitters are required on the service provider side and the user side to separate data signals from audio signals.

ADSL2 The ADSL2 improves the initialization state machine's performance by reducing the frame

overhead. In addition, the ADSL2 uses higher modulation rate, improved coding gain, and enhanced signal processing methods. Compared with the ADSL, the ADSL2 takes advantage in rate and coverage. Its maximum downstream rate is 12 Mbit/s and maximum upstream rate is 1 Mbit/s.

ADSL2+ In addition to basic ADSL2 features, the ADSL2+ extends ADSL2's downstream frequency

band, which increases the downstream rate within a short distance. Two ADSL2 standards specify downstream frequency bands to 0 kHz–1.1 MHz and 0 kHz–552 kHz, while the ADSL2+ specifies the downstream frequency band to 0 kHz t–2.2 MHz. This increases the ADSL2+ downstream rate to 24 Mbit/s within 1.5 km. The ADSL2's upstream rate, depends on the line condition (basically, it is 1 Mbit/s).

Implementation

The EGW1520 functions as a modem on the ADSL network to modulate and demodulate ADSL signals. After being connected to a remote DSLAM, the EGW1520 connects users to the IP network. Figure 7-1 shows the ADSL network.

Figure 7-1 ADSL network diagram

Specification



Modes for connecting to Internet: route and bridge.

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

Support for the static IP address and obtaining IP addresses by means of DHCP, PPPoE, PPPoA, and IPoA.



Point-to-Point Protocol (PPP) authentication modes: Password Authentication Protocol (PAP) and Challenge Handshake Authentication Protocol (CHAP).



ADSL Seamless Rate Adaptation (SRA).

Standards supported by ADSL:



ITU-T G.992.1 Annex A



ITU-T G.992.3 (ADSL 2) Annex Annex A, L and M



ITU-T G.992.5 (ADSL 2+) Annex A



ITU-T G.992.5 (ADSL 2+) Annex M

Limitation



The voice service and the data service must use the same ADSL Permanent Virtual Circuits (PVC) channel.



The EGW1520 connects to the IP network using an ADSL or a WAN port. The ADSL and WAN ports cannot be used at the same time or back each other up.

Basic Configuration

This topic describes the basic configuration of the ADSL. After the ADSL is configured and ADSL connection is set up, EGW1520 users can connect to the IP network to access the Internet or IP Multimedia Subsystem/Next Generation Network (IMS/NGN).

Prerequisite

You have logged in to the web management system. For details, see 7.7.1 Web Management.

Background

For the principle, implementation, specification, and limitation of the ADSL, see Description. EGW1520 ADSL basic configuration contains the following operations:

1. Add an ATM interface. For details, see Adding an ATM Interface.

2. Add an ADSL service for the new ATM interface. For details, see Adding an ADSL

Service.



ADSL services can be added only for ATM interfaces. Therefore, you must add an ATM interface before adding an ADSL service.



Before deleting an ATM interface, you must delete the ADSL service that is associated with the interface.

Adding an ATM Interface

Step 1 On the web management system, choose Network > ADSL from the navigation tree.

The page shown in Figure 7-2 is displayed.

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Figure 7-2 Adding an ATM interface (1)

Step 2 Click .

The page shown in Figure 7-3 is displayed.

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Figure 7-3 Adding an ATM interface (2)

Parameter

Description

PVC Identifier (VPI)

Indicates the virtual path identifier. The value is provided by the network carrier.

PVC Identifier (VCI)

Indicates the virtual channel identifier. The value is provided by the network carrier.

DSL Latency

Indicates the ADSL latency channel. Normally, the value is Path0. The setting must be the same as that on the Digital Subscriber Line Access Multiplexer (DSLAM), which is provided by the network

Step 3 Set parameters according to Table 7-1.

Table 7-1 Parameter description (1)

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Parameter

Description

carrier.

DSL Link Type

Indicates the ADSL connection type. The options are as follows:



EoA: Ethernet over ATM, including Point-to-Point Protocol over Ethernet over ATM (PPPoEoA), IP over Ethernet over ATM (IPoEoA), and bridge.



PPPoA: Point-to-Point Protocol over ATM



IPoA: Internet Protocol over ATM

The setting on the EGW1520 must be the same as that on the DSLAM, which is provided by the network carrier. The following

Adding an ADSL Service uses EoA as an example.

Connection Mode

Indicates the ADSL connection mode. The options are as follows:



Default Mode: Packets that are sent from the ADSL port do not carry any VLAN tags.



VLAN MUX Mode: Packets that are sent from the ADSL port can carry VLAN tags.

The setting on the EGW1520 must be the same as that on the DSLAM, which is provided by the network carrier.

NOTE

When DSL Link Type is set to PPPoA or IPoA, this parameter is unavailable.

Encapsulation Mode

Indicates the mode for encapsulating packets. The setting on the EGW1520 must be the same as that on the DSLAM, which is provided by the network carrier.

Service Category

Indicates the service type. This parameter limits the rate of upstream packets that are sent from the ADSL port.



UBR Without PCR: Neither the unspecified bit rate (UBR) nor the peak cell rate (PCR) is limited.



UBR With PCR: The UBR is not limited but the PCR is limited.



CBR: The constant bit rate (CBR) is used.



Non Realtime VBR: The non-real-time variable bit rate (VBR) is used.



Non Realtime VBR: The real-time VBR is used.

IP QoS Scheduler Algorithm

Indicates the QoS rule for scheduling upstream packets that are sent from the ADSL port. The options are as follows:



Strict Priority: The priority-based QoS rule is used. Packets in a queue with a low priority are not sent until packets in the queue with a higher priority have been sent. The priority of the default queue is 8. Packets matching no QoS rule are placed in the default queue.



Weighted Fair Queuing: The Weighted Fair Queuing (WFQ)-based QoS rule is used. Packets are classified based on precedence. The precedence of a packet determines the bandwidth for sending the packet out of the queue. A higher precedence indicates a higher bandwidth.

NOTE

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Parameter

Description

For features and configurations of the EGW1520 QoS, see QoS.

Step 4 Click to save the settings.

----End

Adding an ADSL Service

The operations for Adding an ADSL Service vary with the ADSL connection type. This topic describes the ADSL connection of the EoA type. For parameters for configuration other ADSL connection types, see Web Parameters Reference .

Step 1 On the web management system, choose Network > ADSL from the navigation tree.

The page shown in Figure 7-4 is displayed.

Figure 7-4 Adding an ADSL service (1)

Step 2 Click .

The page shown in Figure 7-5 is displayed.

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Figure 7-5 Adding an ADSL service (2)

Step 3 Select an ADSL port.

Step 4 Click .

The page shown in Figure 7-6 is displayed.

Figure 7-6 Adding an ADSL service (3)

Step 5 Select a service type and define the service description. You can also retain the default service

description.



The service type varies according to network carriers.



If Bridging is selected, EGW1520 functions as a bridge and does not provide the route and voice functions.

The EGW1520 supports the following ADSL service types (to access the configuration procedure of a service type, click the corresponding link):

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

Parameter

Description

Username

The value is provided by the network carrier.

Password

The value is provided by the network carrier.

Authentication Method

The options are as follows:



AUTO: The system automatically selects the Password Authentication Protocol (PAP) or Challenge Handshake

PPPoE



IPoE



Bridging

If you select PPPoE as the service type, the procedure is as follows:

1. Click in Figure 7-6.

The page shown in Figure 7-7 is displayed.

Figure 7-7 Adding an ADSL service (4)

2. Set parameters according to Table 7-2.

Table 7-2 Parameter description (2)

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Parameter

Description

Authentication Protocol (CHAP) as required.



PAP: The PAP is used.



CHAP: The CHAP is used.

The value is provided by the network carrier. The recommended value is AUTO.

Dial on demand (with idle timeout timer)

Dial on demand is applicable to the Internet service charged by time. When this function is enabled, the EGW1520 sets up a dialing connection only when there are Internet access requests. If the EGW1520 does not receive any Internet access requests within a specified period, the ADSL connection is disconnected automatically.

Use Static IP Address

The static IP address assigned by the network carrier is used.

Bridge PPPoE Frames Between WAN and Local Ports

PCs and other terminals that connect to the EGW1520 can still use the PPPoE dialing function when the EGW1520 functions as a route.

NAT

Indicates whether to enable the network address translation (NAT) function which allows EGW1520 users to access the Internet with private IP addresses. The default value Enable is recommended.

Fullcone NAT

Indicates whether to enable the full cone NAT function. The default value Disable is recommended.

Firewall

Indicates whether to enable the firewall function. If the firewall function is enabled, the firewall will block all downstream packets that are sent from the ADSL port. The default value Enable is recommended.

3. Click .

The page shown in Figure 7-8 is displayed.

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Figure 7-8 Adding an ADSL service (5)

4. Configure a DNS server.

The system provides the following methods for configuring a DNS server:

− Select a port that connected to a DNS server.

− Configure a static DNS server whose IP address is provided by the network carrier.

If the IP address of the DNS is provided, users can select the second method.

5. Click .

The page shown in Figure 7-9 is displayed.

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Figure 7-9 Adding an ADSL service (6)

6. Check whether the configurations are correct. If yes, click to save the

configurations. If no, click to modify the configurations.

If you select IPoE as the service type, the procedure is as follows:

1. Click IPoE in Figure 7-6.

The page shown in Figure 7-10 is displayed.

Figure 7-10 Adding an ADSL service (7)

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2. Click .

Parameter

Description

DHCP

The EGW1520 functions as the DHCP client and obtains the IP address using the DHCP server. The setting must be the same as that on the Broadband Remote Access Server

The page shown in Figure 7-11 is displayed.

Figure 7-11 Adding an ADSL service (8)

3. Set the IP address.

Select either of the following modes for setting the IP address based on the parameters provided by carriers:

− DHCP mode

− Static mode

Set parameters according to Table 7-3.

Table 7-3 Parameter description (3)

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Parameter

Description

(BRAS) of the network carrier.

Option 60 Vendor ID

Indicates the ID of the DHCP client manufacturer.

Option 61 IAID

Indicates the identity association identifier of the DHCP client. The IAID and DUID compose of the client ID. The MAC address and DHCP client ID are used to identify a DHCP client. When the same client requests IP addresses at different times, the DHCP server allocates the same IP address to it.

Option 61 DUID

Indicates the unique DHCP client identifier. The IAID and DUID compose of the client ID. The MAC address and DHCP client ID are used to identify a DHCP client. When the same client requests IP addresses at different times, the DHCP server allocates the same IP address to it.

Option 125

Indicates the option for the client manufacturer. It is used to provide the DHCP server with information such as the manufacturer name, OUI, device model, device SN for the DHCP server. The information can be used in TR-069.By default, this value is enabled.

Option 42

Indicates the NTP server option. It is used to allocate the NTP server's IP addresses to the client.By default, this value is enabled.

Option 43

Indicates the option for the manufacturer's specified information. It is used to allocate ACS URL to the client. The information can be used in TR-069.By default, this value is enabled.

Option 66 & 67 & 150



66: TFTP server domain option, used to allocate the TFTP server's domain name to the client.



67: File name option, used to allocate the file name to the client.



150: TFTP server IP address option, used to allocate the TFTP server's IP address to the client.

By default, this value is enabled.

Option 120

Indicates the SIP server option. It is used to allocate the SIP server's IP address or domain name to the client.By default, this value is enabled.

Static IP Address

Set the static IP address for the EGW1520. The setting must be the same as that on the BRAS of the network carrier.

WAN IP Address

Indicates the IP address. The value is provided by the network carrier.

WAN Subnet Mask

Indicates the subnet mask. The value is provided by the network carrier.The default value is 255.255.255.0.

WAN Gateway

Indicates the gateway IP address. The value is provided by the network carrier.

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Parameter

Description

NAT

Indicates whether to enable the network address translation (NAT) function which allows EGW1520 users to access the Internet with private IP addresses. The default value Enable is recommended.

Fullcone NAT

Indicates whether to enable the full cone NAT function. The default value Disable is recommended.

Firewall

Indicates whether to enable the firewall function. If the firewall function is enabled, the firewall will block all downstream packets that are sent from the ADSL port. The default value Enable is recommended.

4. Click .

The page shown in Figure 7-12 is displayed.

Figure 7-12 Adding an ADSL service (9)

5. Set parameters according to Table 7-4.

Table 7-4 Parameter description (4)

6. click .

The page shown in Figure 7-13 is displayed.

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Figure 7-13 Adding an ADSL service (10)

7. Configure a DNS server.

The system provides the following methods for configuring a DNS server:

− Select a port that connected to a DNS server.

− Configure a static DNS server whose IP address is provided by the network carrier.

If the IP address of the DNS is provided, users can select the second method.

8. Click .

The page shown in Figure 7-14 is displayed.

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Figure 7-14 Adding an ADSL service (11)

9. Check whether the configurations are correct. If yes, click to save the

configurations. If no, click to modify the configurations.

If you select Bridging as the service type, the procedure is as follows:

1. Click Bridging in Figure 7-6.

The page shown in Figure 7-15 is displayed.

Figure 7-15 Adding an ADSL service (12)

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2. Click .

The page shown in Figure 7-16 is displayed.

Figure 7-16 Adding an ADSL service (13)

3. Check whether the configurations are correct. If yes, click to save the

configurations. If no, click to modify the configurations.

----End

Verification

To verify that the ADSL connection is set up, proceed as follows:

Step 1 Choose Management > Status. The Network page is displayed. Step 2 Check the value of Status.

If the value of Status is Connected, the ADSL connection is set up. If the value is not Connected, verify that the configuration is correct.

----End

Advanced Configurations

This topic describes how to set advanced ADSL parameters. Only network administrators can change the advanced parameter settings. To ensure the normal running of the EGW1520, you are advised to use the default settings.

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Prerequisites

Parameter

Description

Modulation

Indicates the ADSL modulation mode, which is provided by the network carrier and must be compatible with the Digital Subscriber Line Access Multiplexer (DSLAM). The options are as follows:



G.Dmt: It is an International Telecommunications Union (ITU) standard for ADSL, also known as G.992.1. It delivers data at rates up to 8 Mbit/s downstream and 896 kbit/s upstream. By default, this value is selected.



T1.413: It is created by the American National Standards Institute (ANSI) Telecommunications Committee. It defines the minimum requirements for satisfactory performance of ADSL systems using the Discrete Multi-Tone (DMT) line code. The maximum downstream data rate is 8 Mbit/s. By default, this value is selected.



ADSL2: It is the second-generation ADSL standard, including ADSL2 (G.992.3) and no-splitter ADSL2 (G.992.4). Compared with the first-generation ADSL standard, the ADSL2 standard is better in

You have logged in to the web management system. For details, see 7.7.1 Web Management.

Configuration Procedure

Step 1 On the web management system, choose Network > ADSL from the navigation tree. Step 2 Click the Advanced Configuration tab.

The page shown in Figure 7-17 is displayed.

Figure 7-17 ADSL advanced configurations

Step 3 Set parameters according to Table 7-5.

Table 7-5 Parameter description

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Parameter

Description

the access distance and transmission performance aspects, and is improved in stability and anti-noise capabilities. It delivers data at rates up to 12 Mbit/s downstream and 1.0 Mbit/s upstream. By default, this value is selected.



ADSL2+: The ADSL2+ extends the capability of the ADSL2. It increases the number of subcarriers by increasing the number of downstream bits. It delivers data at rates up to 24 Mbit/s downstream and 1.0 Mbit/s upstream. The maximum transmission distance is 6.5 km. By default, this value is selected.



AnnexL: It is an ITU standard for ADSL, also known as G.992.3. It delivers data at rates up to 12 Mbit/s downstream and 1.0 Mbit/s upstream. By default, this value is selected.



Annex M: It contains all new features of ADSL2+. Annex M delivers data at rates up to 24 Mbit/s downstream and 3.5 Mbit/s upstream. By default, this value is not selected.

Phone Line Pair

Indicates the phone line pair. The default value is Inner pair.



Inner pair: inner pair among the four internal phone lines.



Outer pair: outer pair among the four internal phone lines.

Capability

Indicates the DSL service capability.



Bitswap: bit exchange capability. If this value is specified, EGW1520 allows simple bit control for automatically adjusting line rates. By default, this value is selected.



SRA: seamless rate adaptation capability. If this value is specified, EGW1520 can change connection rates when services are transmitted continuously or when there is no bit error. By default, this value is not selected.

Step 4 Click to save the settings.

----End

7.2.2 WAN

The EGW1520 uses a WAN port to connect to the upstream network. The FE mode, however, cannot be used with the ADSL mode at the same time and cannot function as a backup of the ADSL mode.

Description

This topic describes the principle, implementation, specification, and limitation for using a WAN port to connect the EGW1520 to the upstream network.

Principle

The EGW1520 complies with IEEE802.3u 100Base-T.

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Implementation

The EGW1520 has a WAN port. After being configured and connected, the WAN port connects users to the IP network. The IP network connects users to the Internet, IP Multimedia Subsystem (IMS), or Next Generation Network (NGN), as shown in Figure 7-18.

Figure 7-18 WAN network diagram

Specification



One 10/100/1000 Mbit/s self-adaptive WAN port.



Modes of obtaining IP addresses: static IP address configuration, DHCP server, and PPPoE.



Standards supported by the WAN port:

− MAC Address (IEEE 802.3)

− Internet Protocol v4 (RFC 791)

− Address Resolution Protocol (RFC 826)

− Internet Control Message Protocol (RFC 792)

− An Ethernet Address Resolution Protocol (RFC 0826)

− A Standard for the Transmission of IP Datagrams over Ethernet Networks (RFC894)

− A Standard for the Transmission of IP Datagrams over IEEE 802 Networks

(RFC1042)

− DHCP (RFC 2131) TCP Transmission Control Protocol (RFC793)

− UDP User Datagram Protocol (RFC768)

Limitation



The WAN port supports half-duplex and full-duplex self adaptation, but cannot be forced to use full duplex or half duplex.

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Configuration

Prerequisite

Background

Procedure

Step 1 On the web management system, choose Network > WAN from the navigation tree.



The EGW1520 connects to the IP network using an ADSL or a WAN port. The ADSL and WAN ports cannot be used at the same time or back each other up.



IPv6 is not supported.

The EGW1520 uses a WAN port to connect to the IP network. Users can access the Internet, IP Multimedia Subsystem (IMS), or Next Generation Network (NGN) over the IP network.

You have logged in to the web management system. For details, see 7.7.1 Web Management.

For the principle, implementation, specification, and limitation for using a WAN port to connect the EGW1520 to the upstream network, see Description.

The page shown in Figure 7-19 is displayed.

Figure 7-19 Configuring the WAN connection (1)

Step 2 Click .

The page shown in Figure 7-20 is displayed.

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Figure 7-20 Configuring the WAN connection (2)

Step 3 Select a service type and define the service description. You can also use the default service

description.

The service type varies according to network carriers.

The EGW1520 supports the following WAN service types (to access the configuration procedure of a service type, click the corresponding link):



PPPoE



IPoE

If you select PPPoE as the service type, the procedure is as follows:

1. Click in Figure 7-20.

The page shown in Figure 7-21 is displayed.

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Figure 7-21 Configuring the WAN connection (3)

Parameter

Description

Username

The value is provided by the network carrier.

Password

The value is provided by the network carrier.

Authentication Method

The options are as follows:



AUTO: The system automatically selects the Password Authentication Protocol (PAP) or Challenge Handshake Authentication Protocol (CHAP) as required.



PAP: The PAP is used.



CHAP: The CHAP is used.

The value is provided by the network carrier. The recommended value is AUTO.

Dial on demand

Dial on demand is applicable to the Internet service charged by time. When this function is enabled, the EGW1520 sets up a dialing connection only when there are Internet access requests. If the EGW1520 does not receive any Internet access requests within a specified period, the WAN connection is disconnected

2. Set parameters according to Table 7-6.

Table 7-6 Parameter description (1)

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Parameter

Description

automatically.

Use Static IP Address

The static IP address assigned by the network carrier is used.

Bridge PPPoE Frames Between WAN and Local Ports

The default value is recommended.

NAT

Indicates whether to enable the network address translation (NAT) function which allows EGW1520 users to access the Internet with private IP addresses.

Fullcone NAT

Indicates whether to enable the full cone NAT function. The default value Disable is recommended.

Firewall

Indicates whether to enable the firewall function. If the firewall function is enabled, the firewall will block all downstream packets that are sent from the WAN port. By default, this value is Enabled. You can configure relevant parameters to enable packets to pass the firewall.

3. Click .

The page shown in Figure 7-22 is displayed.

Figure 7-22 Configuring the WAN connection (4)

4. Configure a DNS server.

The system provides the following configuration methods: