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Nexus
Voice/Fax Over IP Gateways

The Nexus voice over IP gateways provide predictable, real-time, toll-quality voice and fax communication over your existing IP data network or the Internet. These turnkey solutions are ideal for companies that want to save money on long-distance, interoffice voice and fax communications.

The Nexus supports industry-standard protocols to ensure optimum interoperability and voice quality. The Nexus supports the standards-based protocol, H.323*, for sending voice over the Internet/Intranet/VPNs and G.723/G.729 and other standard voice compression algorithms for voice quality that rivals the PSTN. In addition, Differentiated Services (Diff-Serv) protocol support allows you to prioritize voice over data traffic providing the quality of service (QoS) you expect.

The Nexus installs in minutes because it works with your current equipment, not around it. You don't have to change your PBX, data network, or Internet access to implement this solution.

The Nexus is virtually transparent to users. To place a call to a remote office, simply pick up your desk phone, and dial the access number for the remote Nexus. When you receive a second dial tone, dial the interoffice extension number, and you're connected.

* Limited H.323 support on Nexus880 models.

Features

  • Up to 30 voice/fax ports for communication over an existing IP network or the Internet
  • Ethernet connectivity and full IP compatibility with existing routers and WAN infrastructure
  • FXS, FXO, and E&M connectors on each voice/fax channel for direct analog connection to phones, key telephones, PBX extensions, or PBX trunks
  • Dial, busy, fast busy, and ring-back tones
  • Voice compression to 5.3K per call with support for multiple algorithms, including ITU G.723 and G.729
  • Support for standard fax device
  • No integration with a server or desktop PC required(except Nexus 600 series)
  • Voice prioritization using the industry-standard Differentiated Services (DiffServ) protocol
  • H.323 support for sending voice over the Internet
  • Dial, busy, fast busy, and ringback tones
  • Remote configuration and management over the Internet using telnet, tftp bundled management software or any web browser (web management not supported on Nexus1000 & Nexus1100)
  • Bundled SNMP management software for central site configuration, logging and monitoring
  • Live reporting, usage tracking, call history, voice quality statistics, and other management tools

Product

Model Description
Nexus600 1-Port FXS VOIP PCI Card
Nexus660 1-Port FXS VOIP PCMCIA Card
Nexus680 1-Port FXS/FXO VOIP Gateway Card
Nexus800 1-Port FXS VOIP Gateway
Nexus801 1-Port FXO VOIP Gateway
Nexus820 2-Port VOIP Gateway
Nexus840 4-Port VOIP Gateway
Nexus880 8-Port VOIP Gateway
Nexus4-8 4-Port Expansion Card
Nexus1000 24-Port T1 VOIP Gateway
Nexus1100 30-Port E1 VOIP Gateway

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