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DW6040 Terminal

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The DW6040, a simple addition to the HughesNet terminal, provides the transport for carrying telephony traffic via satellite to the HughesNet Network Operations Center (NOC). In a typical configuration, a voice gateway at the NOC provides connectivity to the PSTN. The standard H.323 protocol suite is used between the DW6040 and the gateway for call setup and teardown.

Implementing the G.729AB 8Kbps voice codec with echo cancellation, voice activity detection, and comfort noise generation, the DW6040 offers superior telephony quality. Facsimile calls are supported using the T.38 fax over IP protocol to rates of 9.6Kbps. The DW6040 also supports a flexible dialing plan.

Optimized for use with the HughesNet system, the voice appliance automatically reserves bandwidth through the HughesNet network when each call is initiated. Additionally, the DW6040 and the NOC components prioritize the associated voice stream to ensure end-to-end toll-quality transmission of the call. The prioritization of voice over data significantly improves the quality of service. The HughesNet system also facilitates short call set-up times—typically less than four seconds—and low end-to-end delay inside the HughesNet network. Transmission efficiency is further improved by compressing the voice packets.

The HughesNet NOC equipment routes the voice calls to the PSTN via an H.323 voice gateway. The voice gateway performs the conversion from the H.323 protocol and the PSTN signaling. The voice gateway provides an E1 interface to the PSTN. Multiple voice gateways may be configured at the NOC. A gatekeeper provides the address resolution between the DW6040 and multiple voice gateways. Alternatively, the voice appliance facilitates international long-distance calling to any phone by connecting, via the NOC, directly to a network of multiple Points of Presence (POP) around the world. When integrated with technology from authorized VoIP service providers, the DW6040 supports such advanced features as Interactive Voice Response (IVR) and easy-to-use online account management.

The HNS Vision® Network Management System (NMS) provides monitoring and control of the voice appliance, as well as the HughesNet terminal. Downloads of software and configuration parameters are also performed by the NMS.

• One to four telephony ports
  
• Connects to the HughesNet terminal via LAN port
  
• H.323 and optional authorized VoIP service provider call agent optimized for the HughesNet system
  
• Group 3 fax up to 9600 bps
  
• DTMF

Voice/Fax Features

• Toll-quality 8 kbps CS-ACELP (G.729AB)
  
• G.165/G.168 echo cancellation
  
• T.38 fax over IP
  
• Voice activity detection
  
• Comfort noise generation
  
• Pay telephone support via loop reversal

Configuration, Status, & Commissioning

• Uses HNS Vision Network Management System
  
• SNMP management of voice appliance
  
• Satellite download of VAP configuration and software
  
• PSTN Gateway
  
• Implements standard H.323 protocol
  
• E1 Interface to PSTN
  
• Digital R2 signaling
  
• Flexible call routing

Interfaces

• One 10/100 BaseT Ethernet port (not for data traffic)
  
• One to four FXS 2-wire telephone ports

Input Power

• 90–240 Vac, 47–63 Hz
  
• 24 Vdc (optional)

Mechanical

• Shipping Weight: 3.5 lbs (1.6 kg)
  
• Dimensions: 9.5"W x 1.8"H x 10.5"D
  (24cm W x 4.6cm H x 26.7cm D)

Environmental

• 0°C to +40°C, RH 95% noncondensing

Optional Features

• International long distance calling to any phone
  
• Double-hop VAP-to-VAP calling
  
• Hunt group assignment
  
• Interactive Voice Response (IVR) feature for pre-paid calling
  
• Online or voice-based billing information