VoIP Gateway TAU-8N.IP

Key features

• Office PBX functionality
• TR-069
• Measurement of subscriber’s line parameters
• High quality of sound

TAU-8N.IP VoIP gateway is an optimal solution to provide corporate clients with advanced VoIP services via analog phones. Due to wide functional capabilities, TAU-8N.IP is used as an office PBX that provides internal and external routing, as well as a basic set of supplementary services.

A high-performance hardware platform provides high quality of sound due to support for a standard set of audio codecs used in VoIP networks (G.711 (a-law, µ-law), G.723.1 and G.729 (А/B)), echo cancellation (Simple, Speex and WebRTC), silence detector, comfort noise generator, DTMF dialing and traffic prioritization rules (QoS).

• OS - Linux

Interfaces

• 10/100BASE-T Ethernet port - 1
• 10/100BASE-T MGMT port - 1
• FXS ports - 8
• USB port - 1

VoIP

• VoIP protocols - SIP
• Connection types - Static, DHCP, PPPoE

Physical and environmental parameters

• Power - 12 V DС, 2 A
• Power consumption - no more than 14 W
• Operating temperature - from +5 to +40 °C
• Operating humidity - no more than 80 %
• Weight - 0.3 kg

VoIP functions

• Local connection switching
• Operation without a SIP server
• Flexible dialplan for FXS ports and SIP profiles
• Dialplan profiles
• Support for DHCP Option 120
• Application of settings without reboot
• Transmission of # symbol as %23

Voice codecs

• G.711 a-law, μ-law
• G.723.1
• G.729 (A/B)

Voice standards

• VAD (Voice Activity Detector)
• CNG (Comfort Noise Generation)
• AEC (Acoustic Echo Cancellation, G.165, G.168 recommendations)

DTMF

• DTMF signals detection and generation
• Transmission by INBAND, RFC 2833, SIP INFO methods

Supplementary services

• Call Hold
• Call Transfer
• Call Waiting
• Call Forwarding on Busy (CFB)
• Call Forwarding on No Reply (CFNR)
• Call Forwarding Uncoditional (CFU)
• Caller ID
• Calling Line Identification Restriction (CLIR) of Caller ID
• Hotline/Warmline
• Call Group
• Local 3-Way conference

Quality of Service (QoS)

• Diffserv and 802.1p assignment for SIP and RTP packets

Connection types

• Static IP address
• DHCP client
• PPPoE

Network functions

• Static routing
• VLAN
• Support for DHCP options
  • 1 – Subnet Mask
  • 3 – Router
  • 6 – DNS Server Address
  • 12 – Host Name
  • 15 – Domain Name
  • 28 – Broadcast Address
  • 33 – Static Route
  • 42 – NTP Servers
  • 43 – Vendor Specific
  • 60 – Class ID
  • 66 – TFTP Server Name
  • 67 – Boot File Name (to download via TFTP from server option 66)
  • 120 – Outbound of SIP Server
  • 121 – Classless Static Route Options
  • 249 – Private/Classless Static Route (MS)

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 3361 DHCP Option 120
• RFC 3550 RTP A Transport Protocol for Real-Time Applications

Management

• Web
• Telnet
• SSH
• TR-069

Security

• Username and password authentication
• Firewall
• Access rights differentiation for admin, user and viewer

USB port

• Connection of USB drive with FAT/FAT32/NTFS file systems

Technical features

• SD RAM 512 MB
• Flash 512 MB
• OS Linux

Physical features

• Power adapter: 12 V DC, 2 A
• Power consumption: 14 W
• Operating temperature: +5 to +40 °C
• Operating humidity: up to 80 %
• Dimensions (W×H×D): 208×38×115 desktop case or wall mount