TLD SXGW842R

1 Introduction

1.1 Overview

The TLD GW842R is an Analogue Telephone Adaptor (ATA) that enables an analog telephone to make voice / fax calls via the emerging VoIP network.  It is designed to support the two most widely used Open VoIP Standards (H.323 and SIP).  This allows the TLD GW842R to interoperate seamlessly with softswitches or IP PBXs made by various vendors.  Its high performance but low cost design offers toll quality voice, flexible networking, and feature-rich call functions.

1.2 Supported Protocols

IETF SIP V2.0(RFC3261)

ITU-T H.323 V4 Standard

       H.2250 V4 Standard

       H.245 V7 Standard

       H.235 Standard（MD5，HMAC-SHA1）

ITU-T G.711 A-Law/m-Law, G.729A, G.729AB, and G.723.1 Voice Codecs

T.38 Fax Over IP

RFC1889 Real Time Data Transmission

Simple Traversal of UDP over NAT (STUN)

Web-base Management

TCP/IP V4 (IP V6 auto adapt)

PPP over Ethernet (PPPoE)

PPP Authentication Protocol (PAP)

Internet Control Message Protocol (ICMP)

TFTP Client

Hyper Text Transfer Protocol (HTTP)

Dynamic Host Configuration Protocol (DHCP)

Domain Name System (DNS)

User account authentication using MD5

Out-band DTMF Relay: RFC 2833 and SIP Info

1.3 Hardware Specification

ARM9E high performance network processor

Digital Signal Processor(DSP) for voice processing

Two 100M Based Ethernet ports in comply with IEEE 802.3 for both LAN and PC connections.

LEDs for Ethernet port status

Four FXS ports

Ethernet Bridge

1.4 Software Specification

LINUX OS

Built-in HTTP server for web-based configuration

Built-in PPPoE for broadband(xDSL, Cable) network

Built-in basic broadband router

DHCP Client

DHCP Server

Firmware On-line upgrade

Phone Book / Memory Dial

Caller ID

Multiple Language Support

1.5 Package Contents

The package should contain the following items:

a)        TLD GW842R Analog Telephone Adaptor

b)       AC Power Adapter (Universal input and DC24V/500mA output)

c)        Ethernet cable (2-Meter)

1.6 Appearance

The TLD GW842R has Four FXS port (Phone) or 8 fxs ports, two Ethernet ports (LAN and PC), Power Input.

1） L4/L3/L2/L1

This port is called FXS port.  Use a standard telephone wire with RJ-11 plugs to connect this port to an analog telephone.  Do not connect this port to a POTS line since it may cause damages to the ATA.

2） LAN

Use the Ethernet cable provided to connect this port to a network device for internet / network access.

3） PC

Connect to a PC or laptop computer

4） POWER DC24V/500mA

Use the Adapter provided to connect power to this port.

2 Installation

2.1 Setting up the ATA

Please follow the connection diagram shown above to setup the TLD GW842R.

a)        Connect a regular analog telephone to the L1/L2/L3/L4 port.

b)       Insert the Ethernet cable into the LAN port and connect the other end of the Ethernet cable to an Ethernet port of a network device (Router / Switch / Modem).

c)        Connect your PC or laptop computer to the PC port (optional).

d)       Plug the AC Power Adapter provide to the DC jack and then the other end to a AC power source.

 Network In

Disconnecting is very rare when making calls over internet.

So with our D-Com device, that:

1, multinational corporations can set up their telecom network, which is free of charge for phone and faxing with their own network.

2, call to PSTN phones and send faxes。It can also connected to a phone exchange, then can have up to 8 lines with 8 difference billing accounts or one billing account, at the option of the users.

3, answering phone display at the one who is being called, so that when they call back, they will know which number to call you。All VOIP phone has no number now, so when you make a out-bound call, your number is hidden, and if the other side wants to call you back, they have no idea where to call you, but with our D-Com device, settings can be made to have your mobile phone number or your PSTN phone number to be as your caller ID to be displayed the one who is being called as if they think you are calling from your mobile phone or PSTN phone.

4, call diverting: so even if you are traveling abroad, you will never miss any of your calls, as it can be diverted to be answered to your any other phone that is being carried by you.

5, portable terminal: for the convince of the businessmen and businesswomen who travel a lot, we have a device which is Travelers’ Babe, very small and easy to carry.

6, Plug and play: Maybe you have a subcompany in china, in Europe or any other countries, so just plug the portable D-Com device, within one minute, you will be able to make calls. No complicated settings will be needed. But in case of dynamic IP, the plus and play still is easy if you  have a small router with you and in case that in your country IP is static, it is real plug and play.

Absolute Maximum Ratings:

Electrical  Characteristics:

Mechanical Characteristics: