Overview:

VSATplus T2000 combines the versatility of a voice-optimized, digital switching VSAT with the efficiency of a data-optimized, wide area networking VSAT. The  esult is the most capable VSAT available today, supporting a full range of advanced PBX voice services while at the same time providing an efficient solution for LAN/WAN data requirements.

T2000 remotes are fully integrated VSATs that support both voice and data satellite access on multiple transponders. Separate voice and data physical interfaces at the remote site are processed and combined into a single cable leading to one antenna and radio. Acting as a Router, the remote T2000 VSAT routes all connections according to their appropriate destination.

VSATplus T2000 for Advanced Connections - Anywhere
T2000 converges field-proven VSAT solutions for voice, fax and data with high-speed, always-on Internet access. The result: advanced, reliable telecommunications in even the most remote locations, without the time and expense of infrastructure development.
ternet are needed.

In areas where PSTN and Internet services are unavailable, overloaded or too expensive, VSATplus T2000 provides a fast, cost-effective way to provide pay phones, prepaid calling, Public Call Offices, business connectivity and more.

A highly flexible solution that functions with a range of topologies, T2000 is quick to install and easy to manage. Modular and scalable, T2000 networks can be upgraded in a very simple manner. Each unit supports up to six telephone channels and an Ethernet port for top-performance PC Internet access.

Fast-Deploying Solutions for Remote Communities
VSATplus T2000 enables telecom providers, governments, small businesses, remote farms and other enterprises to bridge the digital divide with converged toll-quality voice, fax and Internet capabilities:

 Public Telephony

• Public Call Offices
• Pay phones
• Prepaid Calling
• Remote government offices
• Internet kiosks

Private Telephony

• Small Home/Small Office (SOHO)
• Businesses
• Remote farms
• Services at remote tourist sites

Standalone Phones

• Emergency/rescue
• Rural roads and remote highways
• Restoration/back-up - for non-satellite telephony networks

High-Speed, Always-On Internet/Intranet connection:

• Web browsing
• E-mail
• FTP
• E-commerce
• Distance learning

Features:

VSATplus T2000's Advanced Features
VSATplus T2000 offers a range of advanced features that maximize system performance and cost savings for bundled telephony and Internet solutions:

• Toll-Quality Full Duplex Voice
• High-Speed Internet Access
• Payphone Support
• Prepaid Calling Support
• Group 3 Fax Relay
• Voice Band Data
• Full Mesh or Star Topology
• Multiple PSTN Gateways
• Conventional Numbering Plan
• Remote Control and Monitoring
• Ultra-Low Power Consumption

Toll-Quality Full Duplex Voice
A toll-quality G.723.1 voice compression algorithm is used at 6.4 kbps. It has a Mean Opinion Score (MOS) voice quality rating of 3.9, better than the G.726 32- kbps ADPCM. The algorithm is language-independent and passes in-band DTMF as well as other voice band tones. Every voice connection is full duplex. A voice coding of 4.8 kbps (near toll quality, MOS = 3.5) is available for further space segment savings.

High-Speed IP connection
Internet-access services such as web browsing, e-mail and e-commerce can be delivered to the Public Call Office, or private office, via an ISP connection at the hub.

Payphone Support
Flexible adjustment to various payphones. 16/12 kHz or reverse polarity metering pulse is supported.

Prepaid Calling Support
End user subscribers can now purchase call-time in advance with the VSATplus T2000 Prepaid Calling system - a convenient advance-payment add-on supported for mesh, star or multi-star topology networks.

Group 3 Fax Relay
Fully supported at 4.8 kbps, with automatic voice/fax mode switching.

Voice Band Data
Fully supported at 2.4 kbps (V.22 bis, V.23) with automatic voice/data mode switching.

Full Mesh or Star Topology
Full-mesh single hop communication between VSATs is available using a mesh connectivity plug-in card. Star topology further reduces operators' costs.

Multiple PSTN Gateways
Call routing can be carried out to several PSTN locations using digital E1 satellite or terrestrial Gateways.

Conventional Numbering Plan
Destination numbers for incoming and outgoing calls are manipulated by the system to conform to PSTN conventions.

Remote Control and Monitoring
The Network Management System controls and monitors all parameters of the VSAT remote terminals via the satellite link. This sophisticated system:

• Updates VSAT parameters and software
• Gathers call data records for billing
• Enables/disables remote units

Ultra-Low Power Consumption
Requiring very low power, VSATplus T2000 is an excellent solution for remote areas where no power is available and solar panels are used.
 

Technical Specs:

 Built to Perform and Expand with Ease
The VSATplus T2000 is designed for maximum performance, flexibility and quality: toll-quality, full duplex voice; automatic voice/fax/data channel; two-way, always on asymmetric IP routing and more.

Read below for detailed information on VSATplus T2000 architecture and technical specifications.

Architecture

A VSATplus T2000 network consists of a central hub, multiple PSTN gateways, satellite channels and remote terminals (VSATs).

A remote terminal consists of a small outdoor antenna (typically 0.55 to 1.2 meters), an Outdoor Unit (ODU) and an Indoor Unit (IDU). The hub consists of an RFT and baseband equipment. The baseband includes a Hub Satellite Processor, a Hub Voice Gateway, a Hub IP Router and a Network Management System (NMS). Each Hub Voice Gateway can be connected directly to the PSTN using a digital E1 line. The Hub IP Router is used to interface with the Internet Service Provider (ISP). The hub design permits easy scalability and incorporation of new features.

VSATplus T2000's Network Management System enables the hub operator to monitor and control the remote terminals, and to gather call data records from the sites for billing operations. Client-server architecture enables remote NMS capability.

PSTN gateways are remote terminals that serve a different function. They establish digital E1 connectivity with several central offices in various locations. There are two options available. Satellite gateways, which utilize satellite channels, and terrestrial gateways, which carry compressed voice data over terrestrial leased lines.

VSATplus T2000 Architecture

 

Bundled Voice/Fax/Data Transmission
With VSATplus T2000, the analog voice input is digitized and compressed to 4.8 or 6.4 kbps. The compressed voice is packetized and transmitted to the hub or to another remote terminal via the satellite. At the destination, a voice/fax/data card decodes the incoming voice packets into digitized voice, which is then reconverted into analog form. The voice/fax/data channel is configured for voice mode by default. When a Group 3 fax transmission is detected, the channel automatically switches to fax mode. Upon completion of the fax message, the channel automatically returns to voice mode.

Internet Access
The VSATplus T2000 provides two-way, always on asymmetric IP routing. The IP data is time-multiplexed with the telephony data, enabling simultaneous telephone calls and Internet browsing. Internet access is carried out without occupying a telephone line. The hub transmits a high-speed outbound carrier of up to 8.2 Mbps containing IP data. The VSATs transmit an inbound carrier of up to 160 kbps. The VSAT acts as a router, enabling the connection of more than one PC. An Ethernet LAN port at the VSAT is used for PC connection (RJ-45). Internet enabling technologies such as TCP spoofing and Internet Page Acceleration are incorporated to ensure a superior user experience.      
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