Ru En
Designer and manufacturer of communication equipment
Russia (GMT +7)

VoIP Gateway TAU-1M.IP

Mass production
Key features 
  • Triple Play
  • VLAN per service 
  • Аutoprovision (TR-069, DHCP) 
Home terminal
TAU-1М.IP is an access gateway with embedded router. The device has FXS port for analogue telephone connection, 2 LAN 10/100BASE-T ports for TV or Set-Top boxes connection. 
The terminal connects to service provider networks via WAN 10/100BASE-T port and has a USB port for 3G/4G modems or USB storage device connection.

Eltex.ACS (TR-069) management system
Eltex.ACS autoconfiguration system is implemented on the basis of TR-069 protocol, provides operator with a convenient functionality for management of firmware versions and configurations of customer devices.  Eltex.ACS automatically loads an individual configuration into a device in accordance with the subscriber's account data. A function of intellectual upgrading of firmware versions works successively with the devices on the network by updating the groups of devices according to assigned queue discipline.  System Eltex.ACS is provided with North Bound Interface (NBI) for interacting with OSS complexes. 

Ease of usage
User-friendly control interface as well as supporting means of group-type automated control on the basis of TR-069 and DHCP (DHCP-autoprovision) protocols ensure ease of using unlimited number of TAU-1M.IP gateways on the operator's network. 

Modules and additional devices
Documents and files
  • 1 FXS port  
  • 1 WAN 10/100BASE-T port
  • 2 LAN 10/100BASE-T ports
  • 1 USB 2.0 port
VoIP protocols
  • SIP
Voice codecs
  • G.711 a-law, µ-law
  • G.722
  • G.723.1
  • G.726
  • G.729 (A/B)
  • T.38 UDP Real-Time Fax
  • a-law, µ-law G.711 pass-through
Voice standards
  • VAD (Voice Activity Detection)
  • CNG (Comfort Noise Generation)
  • AEC (echo cancellation, G.165, G.168 recommendations)
  • DTMF signals detection and generation
  • Transmission via INBAND, RFC 2833, SIP INFO
Value Added Services
  • Call Hold
  • Call Transfer
  • Notice of new call arrival (Call Waiting)
  • Call forward on busy  (CFB)
  • Call Forward No Reply  (CFNR)
  • Call Forward Unconditionally  (CFU)
  • Caller ID
  • Calling line identification restriction (CLIR)
  • Hotline/Warmline
  • Call Group
  • 3-Way conference
VoIP functionality
  • Internal connections switching
  • Operating without SIP-server
  • Flexible numbering plan 
  • Parameters profiles for ports
  • Settings are applied without rebooting
  • IMS (3GPP TS 24.623) support for Hold, CW, 3-Way conference, Hotline services management
  • SIP TLS support
  • # symbol transmission as %23
Quality of Service (QoS)
  • Diffserv and 802.1р priority assignment for SIP and RTP 
  • Traffic prioritization according DSCP and 802.1p  
Types of connections
  • Static IP address
  • DHCP-client
  • PPPoE
  • PPTP
  • L2TP
Network Functions
  • Bridge and router mode
  • NAT
  • Static routing 
  • VLAN per service (Internet, VoIP, IPTV)
  • IGMP
  • DHCP, DNS server on LAN 
  • Port forwarding
  • Firewall
  • 3G/4G-router mode
  • UPnP
Supported specifications
  • RFC 3261 SIP 2.0
  • RFC 3262 SIP PRACK
  • RFC 4566 Session Description Protocol (SDP)
  • RFC 3263 Locating SIP servers for DNS lookup SRV and A records
  • RFC 3264 SDP Offer/Answer Model
  • RFC 3311 SIP Update
  • RFC 3515 SIP REFER
  • RFC 3891 SIP Replaces Header
  • RFC 3892 SIP Referred-By Mechanism
  • RFC 4028 SIP Session Timer
  • RFC 2976 SIP INFO Method
  • RFC 2833 RTP Payload for DTMF Digits, Flash event
  • RFC 3108 Attributes ecan and silenceSupp in SDP
  • RFC 4579 SIP Call Control - Conferencing for User Agents
  • RFC 3361 DHCP Option 120
  • RFC 3550 RTP A Transport Protocol for Real-Time Applications
  • RFC 3611 RTP Control Protocol Extended Reports (RTCP XR)
  • WEB (English and Russian versions)
  • Telnet
  • FTP
  • Syslog
  • SSH
  • TR-069 (recommended to work with Eltex.ACS server)
  • DHCP autoprovisioning (periodically and scheduled)
  • SNMP (configuration and monitoring)
  • Username and password verification
  • Firewall
  • Access rights delimitation admin/user/viewer
  • USB-drive connection with FAT/FAT32/EXT2/EXT3/NTFS file systems
  • USB 3G/4G modem connection - operating in 3G/4G router mode
Main technical features
  • SDRAM 128 MB
  • SPI Flash 8 MB
  • OS Linux
Physical characteristics
  • Power adapter 12V DC, 1 A
  • Power consumption: no more than 6 W (TAU-1M.IP),
                                      no more than 7.2 W (TAU-2M.IP)
  • Operating temperature: from +5 °С to +40 °С
  • Operating humidity: 80% max.
  • Dimensions (WxDxH): 122х96х33 mm, desktop case
  • Debug information output to Syslog/Telnet
  • Device status monitoring via Web interface
  • Subscriber lines parameters testing  

Related software

ACS_CPE-256 option of Eltex.ACS system for Eltex CPE auto configuration: 256 subscribers

ACS_CPE-512 option of Eltex.ACS system for Eltex CPE auto configuration: 512 subscribers

Опция ACS_CPE-512 системы Eltex.ACS для автоконфигурирования Eltex CPE: 512 абонентских устройств

ACS_CPE-1024 option of Eltex.ACS system for Eltex CPE auto configuration: 1024 subscribers

Опция ACS_CPE-1024 системы Eltex.ACS для автоконфигурирования Eltex CPE: 1024 абонентских устройств

Operational lifetime of the ELTEX equipment
In development
Mass production
Mass production is over
Sold out
Support is over
Regardless of the operational lifetime stage, Eltex provides a 12 months warranty on all its telecommunication equipment.
During the warranty period the manufacturer ensures technical support and free-of-charge repair at the Enterprise which is situated in Novosibirsk.
As part of the warranty service, technical support is provided on the first-in first-out principle.
The priority support packages of 8/5 and 27/7 types are subjects to additional charges.

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