VoIP Gateway TAU-72.IP

PBX functionality
High quality Voice
Current and voltage port protection
Enables to provide testing measurement of line
Characteristics
Maximum length of line – 6 km

Multiport Access VoIP Gateway TAU-72.IP series are designed and suitable for voice and facsimile information transmission via the IP-network. Gateways provide customers with high-quality Telephone Communications with Value Added Services Support: call-forward, call waiting, 3-way conference, pick up, group call, call line identification presentation etc.

High quality Voice

High performance hardware platform based on Mindspeed modern chipset, support of all basic audio codecs used in VoIP-networks (G.711, G.723.1, G.726, G.729), echo elimination functions, silence detector, comfort noise generator, DTMF signal reception and generation, as well as traffic prioritization mechanism (QoS) provide high quality of voice data.

IMS Ready

Support of IMS extensions allows using TAU with different IMS platforms.

Ease of use

The 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 subscriber’s line physical parameters measurement capabilities and ease of using unlimited number of TAU gateways on the operator’s network.

Supports capability to measure following subscriber’s line parameters :

extraneous voltage on the wires a and b
subscriber’s line voltage
ringing voltage
resistance between wires a and b, cable a and ground, cable b and ground
capacitance between wires a and b, cable a and ground, cable b and ground

Eltex.EMS management system

For gateways mass exploitation on network Eltex offers unified monitoring and control system Eltex.EMS. The system provides gateways group centralized management with the ability of ports monitoring via unified web-interface.

VoIP protocols

SIP
SIP-T
H.323
H.248

Voice codecs

G.729 (A, B)
G.711 (a-law, µ-law)
G.723.1 (6,3/5,3 Cbps)
G.726

Fax support

T.38 UDP Real-Time Fax
G.711 (a-law, µ-law) pass-through

Voice standards

VAD (Voice Activity Detection)
CNG (Comfort Noise Generation)
AEC (echo cancellation, G.168 recommendation)

Functional features

SIP-server authentication with common username and password for all subscribers
SIP-server authentication with individual username and password for every subscriber
Direct routing to unregistered devices on SIP-servers
Internal connections commutation in case connection with SIP-server loss
Supplementary self- service processing (Distributed mini PBX mode)
Regular expressions in Dialplan
Concurrent connections limitation
CPC (Calling Party Control): disconnect signal by circuit disruption
Signal generation handset un hooked
Supplementary service management with telephone
Settings using without rebooting
IMS (3GPP TS 24.623) Call Hold, Call Waiting, 3-Way Conference, Hotline services management
Redundant SIP-servers support
DHCP option 82 generation, Agent client circuit suboptions ID, Agent remote ID