Digital Voice Systems Net-2000 Specifications

Digital Voice Systems, Inc.
The Speech Compression Specialists
TM
Net-2000 Voice Codec Unit
Features
Stand-alone Design
Network enabled voice codec unit interfaces AMBE
vocoders between Analog I/O and Ethernet networks.
Real-time, full-duplex communications to other Net-
2000™ units via UDP Ethernet or RS-422 interface.
Both voice and channel data can be transmitted over
the Ethernet interface at the same time.
Encode/Decode files stored on a PC or networked
attached storage.
Flexibility and Performance
High performance line level audio using 16-bit linear
codec.
4-wire and 2-wire analog input/outputs.
Built-in web server to select audio I/O, gain settings and
vocoder mode from any PC on the LAN.
Supports Variety of AMBE Vocoder Modes
®
Flexible bit-rates (2.0 – 9.6 kbps and 4 kbps toll quality)
for optimum system performance.
Built-in FEC delivers robust performance over channels
degraded by bit errors and/or background noise.
AMBE™ Vocoder Modes can also include DTMF
capability, Voice Activity Detection, Comfort Noise
Insertion, and Echo Cancellation.
Easy to Integrate and Operate
The RS-232 serial port can be used as a console
terminal for system setup and control.
Easy network set-up with built-in DHCP to handle IP
address information when available on LAN.
The embedded operation software can be field
upgradeable.
Rack mountable aluminum chassis design.
Digital Voice Systems, Inc.
Tel: (978) 392-0002
The Net-2000™ Voice Codec Unit (VCU)
combines AMBE
The Net-2000™ voice codec unit (VCU) incorporates Digital Voice Systems,
Inc. (DVSI) award winning AMBE
speech I/O to an Ethernet network. This stand-alone device supports multiple
AMBE vocoder modes that makes it ideally suited for a variety of digital
®
® communication systems as well as volume OEM applications such as VoIP,
and voice recording products.
The flexibility of the Net-2000™ VCU's patented AMBE
maximizes communications system resources and provides optimum voice
comprehension even under extreme bit errors or acoustic background noise
conditions. The Net-2000™ AMBE
between 2.0 - 9.6 kbps , built-in FEC, DTMF capability, Voice Activity Detection
(VAD), Comfort Noise Insertion (CNI), and echo cancellation.
The Net-2000™ also incorporates the AMBE+2™ Vocoder that sets the
standard for speech quality at the low data rate of 4.0 kbps. The superior
performance characteristics of AMBE+2™ Vocoder have made it successful
in voice communication applications where bandwidth is at a premium and
high quality voice is imperative. In fact, the AMBE
by numerous independent evaluations, to out perform CELP and other
competitive technologies at under half the data rate.
To meet a wide variety of communication system requirements the NET-
2000™ Voice Codec Unit offers an array of speech and channel interfaces
along with control features that make it easy to set-up and operate. The Net-
2000™ includes 2-wire, 4-wire and handset analog interfaces for input and
output of uncompressed speech, as well as, Ethernet and RS-422 as its
channel data interface. A unique feature of the Net-2000™ is that both voice
and channel data can be transmitted over the Ethernet interface at the same
time.
The Net-2000™ implements the channel data interface using a protocol
designed by DVSI. This allows real-time, full-duplex communications via the
Ethernet or RS-422 interfaces to another Net-2000™ unit. Connecting two
Net-2000™ units together is as easy as entering the IP address (or
hostname) of the Net-2000™ units and selecting the desired voice interface
and AMBE vocoder mode.
®
234 Littleton Road
Fax: (978) 392-8866
Vocoder Technology with
®
Ethernet network connectivity!
Vocoder technology to bridge analog
®
Vocoder modes include bit rates
®
®
Westford, MA 01886
web: www.dvsinc.com
Vocoder technology
®
vocoder has been proven