ELTEX TAU-8N.IP Bedienungsanleitung
VoIP Gateway
TAU-8N.IP
User Manual
Firmware version 1.4.0
MGMT IP address: 192.168.1.1
Username: admin
Password: password
TAU-8N.IP User Manual. Version 1.4.0.
2
Contents
INTRODUCTION..................................................................................................................................................................... 5
1. PRODUCT DESCRIPTION................................................................................................................................................ 6
1.1. Purpose ................................................................................................................................................................. 6
1.2. Device Specification.............................................................................................................................................. 6
1.3. Device Design and Operating Principle................................................................................................................. 7
1.4. Main Specifications............................................................................................................................................... 9
1.5. Design ................................................................................................................................................................. 11
1.6. Light Indication .................................................................................................................................................... 13
1.7. Reset to Factory Settings .................................................................................................................................... 14
1.8. Delivery Package................................................................................................................................................. 14
2. DEVICE MANAGEMENT VIA WEB CONFIGURATOR .................................................................................................... 15
2.1. Getting Started .................................................................................................................................................... 15
2.2. User Change........................................................................................................................................................ 16
2.3. Web Interface Operation Modes ......................................................................................................................... 16
2.4. Applying and Discarding Changes Made to Configuration ................................................................................. 17
2.5. Quick Configuration Menu.................................................................................................................................. 18
2.6. Advanced Settings............................................................................................................................................... 21
2.7. System Monitoring.............................................................................................................................................. 78
2.8. Example of device configuration ........................................................................................................................ 88
3. SUPPLEMENTARY SERVICE USAGE.............................................................................................................................. 90
3.1. Call Transfer ........................................................................................................................................................ 90
3.2. Call Waiting.......................................................................................................................................................... 92
3.3. Three-party Conference....................................................................................................................................... 93
4. CONNECTION ESTABLISHMENT ALGORITHMS ........................................................................................................... 95
4.1. Algorithm of a Successful Call via SIP Protocol................................................................................................... 95
4.2. Call Algorithm Involving SIP Proxy Server........................................................................................................... 96
4.3. Call Algorithm Involving Forwarding Server ....................................................................................................... 97
4.4. DHCP-based Autoprovisioning Algorithm........................................................................................................... 98
5. SYSTEM RECOVERY AFTER A FIRMWARE UPDATE FAILURE ..................................................................................... 102
6. APPENDIX A. CALCULATION OF PHONE LINE LENGTH.............................................................................................. 103
7. APPENDIX B. RUNNING USER-DEFINED SCRIPT UPON SYSTEM STARTUP................................................................ 104
8. APPENDIX C. DHCP CLIENTS CONFIGURATION IN MULTISERVICE MODE ................................................................ 105
TAU-8N.IP User Manual
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Document version Issue date Revisions
Version 4.0
28 April 2023 Fourth issue
Version 3.0
30 September 2022 Third issue
Version 2.0
10 June 2022 Second issue
Version 1.0
18 December 2020 First issue
Firmware version Firmware version 1.4.0
EXPLANATION OF THE SYMBOLS USED
Symbol Description
Bold font face Notes, warnings, section headings, titles and table titles are written in bold.
Calibri Italic
Important information is written in Calibri Italic.
NOTES AND WARNINGS
Notes contain important information and recommendations on device operation and setup.
Warnings inform users about hazardous conditions, which may cause injuries or device damage
and may lead to the device malfunctioning or data loss.
TAU-8N.IP User Manual
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INTRODUCTION
Today, VoIP is one of the most rapidly evolving telecommunication services. TAU-8N.IP series gateways
(hereinafter the "device") are designed to provide VoIP services to the network clients.
TAU-8N.IP VoIP gateway allows connecting analogue phones to packet-based data networks accessible via
Ethernet. The device is intended for operation in home or small offices (SMB).
This operation manual describes intended use, key specifications, configuration, monitoring, and firmware
update for TAU-8N.IP VoIP gateways.
TAU-8N.IP User Manual
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1. PRODUCT DESCRIPTION
1.1. Purpose
TAU-8N.IP is a high-performance VoIP gateway with the full set of features that allow users to take advantage
of VoIP functionality. TAU-8N.IP gateway allows connecting an analogue phone or a fax modem to IP
networks.
The devices and connection wires for subscriber device connection are specified for unmanned
day-and-night service in the close heated spaces with ambient temperature from +5 to +40 °С and relative
humidity from 20 % to 80 %. The device does not include built in voltage and current protection for subscriber
terminations.
1.2. Device Specification
Interfaces:
•
FXS: 8 × RJ-11 ports;
•
WAN: 1 × RJ-45 10/100BASE-T Ethernet port;
•
MGMT: 1 × RJ-45 10/100BASE-T Ethernet port;
•
USB: 1 × USB 2.0 port.
The gateway is powered by external 12 V DC adapter for 220 V electrical networks.
Functions:
•
network functions:
•
PPPoE support (PAP/SPAP- and CHAP/MSCHAP-V2-authorization, PPPoE-compression);
•
L2TP support;
•
static address and DHCP support;
•
network screen;
•
NTP support.
•
VoIP protocols: SIP;
•
echo cancellation (G.168 recommendations);
•
voice activity detection (VAD);
•
comfort noise generation;
•
DTMF signals detection and generation;
•
DTMF transmission (INBAND, rfc2833, SIP INFO);
•
fax transmission:
•
G.711A/G.711U;
•
T.38.
•
operation w/ and w/o a SIP server;
•
Supplementary Services:
•
Call Hold;
•
Call Transfer;
•
Call Waiting;
•
Call Forward on Busy;
•
Call Forward on No Answer;
•
Call Forward Unconditional;
•
DND (Do Not Disturb);
•
Caller ID: FSK, DTMF;
•
Hotline;
•
Group call;
•
Call Pickup;
•
Three-party Conference;
•
Flexible dialplan.
TAU-8N.IP User Manual
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•
firmware update via web interface;
•
DHCP-based auto provisioning support;
•
TR-069;
•
remote monitoring, configuration and setup: web interface, Telnet, SSH.
Figure 1 shows TAU-8N.IP connection diagram.
Figure 1 — TAU-8N.IP connection diagram
1.3. Device Design and Operating Principle
TAU-8N.IP terminal includes the following subsystems:
•
controller that includes:
•
processor, including a 100 Mbps switch with a built-in PHY, USB 2.0 ports, PCI-E controllers,
8 PCM channels for VoIP applications;
•
flash memory — 512 MB;
•
SDRAM RAM — 512 MB.
•
8 × subscriber units;
•
Ethernet module MGMT: RJ-45 10/100BASE-T;
•
Ethernet WAN module: RJ-45 10/100BASE-T;
•
USB Host port.
TAU-8N.IP User Manual
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Block diagram of the device is shown in Figure 2.
Figure 2 — TAU-8N.IP block diagram
The device is running the Linux operating system. Basic control functions are performed by productive
processor which enables IP packet routing, VoIP operation, etc.
The device may functionally be divided into 3 blocks:
•
Device network features block;
•
VoIP block;
•
Control block (Linux operating system).
Device network features block enables IP packet passing according to the device routing table. Depending on
the network interface configuration, this block can process both tagged and untagged packets. Supports
protocols DHCP, PPPoE, L2TP.
VoIP block enables SIP operation for transmission of voice signals through the network that features packet
switching. Subscriber’s voice signal is transferred to the SLIC subscriber unit module, where it is converted into
digital form. The digitized signal is transferred to VoIP block to be encoded using one of the selected standards
and is transferred further in the form of digital packets to the controller via the intrasystem backbone. In addition
to voice signals, digital packets contain control and interaction signals.
Control blockbased on Linux operating system monitors operation of all the other blocks and the device
subsystems and manages their interaction.
TAU-8N.IP User Manual
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Fig. 3 shows TAU-8N.IP functional diagram.
Figure 3 — TAU-8N.IP functional diagram
1.4. Main Specifications
Table 1 shows main device specifications.
Table 1 — Main specifications
VoIP protocols
Supported protocols
SIP
Voice codecs
Codecs
G.729, annex A, annex B, G.711 a, G.711u, G.723.1,
G.726-16, G.726-24, G.726-32, G.726-40, AAL2-G.726-16,
AAL2-G.726-24, AAL2-G.726-32, AAL2-G.726-40
fax transmission: G.711 a, G.711u, T.38
Ethernet WAN interface specifications:
Number of ports
1
Electrical connector
RJ-45
Data rate
10/100 Mbps, autodetection
Supported standards
BASE-T
Ethernet MGMT interface specifications:
Number of interfaces
1
Electrical connector
RJ-45
Data rate
10/100 Mbps, autodetection
Supported standards
BASE-T
TAU-8N.IP User Manual
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Analogue user port specifications
Number of ports
8
Loop resistance (phone resistance included)
up to 1800 Ω
Dialing reception
pulse/frequency (DTMF)
Caller ID broadcasting
FSK BELL 202/FSK V.23/DTMF
Control
Remote control
web interface, Telnet, SSH, TR-069
Access restriction by password and by IP address
General parameters
Power supply power adapter 12 V DC, 2.0 A
Power consumption up to 14 W (max. current consumption is 1.17 A)
Operating temperature from +5 to +40 °C
Relative humidity at 25 °C
up to 80 %
Dimensions (W × H × D)
208 × 38 × 115 mm
Weight
0.3
kg
TAU-8N.IP User Manual
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1.5. Design
TAU-8N.IP subscriber gateway is enclosed into 208 × 38 × 115 mm plastic housing.
1.5.1. Front Panel of the Device
The TAU-8N.IP front panel appearance is shown in Figure 4.
Figure 4 — TAU-8N.IP front panel appearance
Table 2 — Description of the front panel indicators and controls
Front panel element Description
1
WAN WAN interface indicator
2
MGMT MGMT interface indicator
3
Phone analogue phone indicator
4
USB external USB device operation indicator (USB flash, external HDD)
5
Status device operation status indicator
6
Power
device power and activity status indicator
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