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Product Reviews
 May 2002


NEAX IPXDM

NEC America
6555 N. State Highway 161
Irving, TX 75039
800-832-6632
Web site: www.necamerica.com


The NEC NEAX IPXDM (DM=Distributed Model) is pretty unique in it�s approach to designing an IP-PBX. Unlike many of the IP-PBXs in this article, utilizing NEC�s IPXDM system does not require you to deploy a 100 percent pure VoIP environment right away. You can insert Time Division Multiplexing (TDM) cards into one of the 12 available slots and use traditional (non-VoIP) digital NEC telephones if you aren�t yet ready to deploy VoIP. Then, when your organization is prepared for VoIP, you can simply insert an Ethernet card that provides 32 Ethernet phone ports. We should mention that the NEAX 2400 IPX has the same features and functions as the NEAX IPXDM, but more card slots.

TMC Labs certainly liked the fact that the NEAX IPXDM can support a �hybrid� network with traditional digital/analog switching, IP/TDM switching and pure peer-to-peer IP switching, which means the users can continue to utilize their existing equipment while they phase in IP telephony. In addition, NEC claims they are the first to support �peer-to-peer calling� on their IP-PBX platform.

The NEAX IPXDM is very modular, supporting three different kinds of interface cards that can be mixed and matched according to your needs. These cards include: TDM (digital and analog stations), IP (Ethernet phones), and peer-to-peer station and trunk interfaces. Peer-to-peer switching means the stations participating in a call are connected directly to each other through the IP network. The voice signals travel through the IP network but do not �go through� the switch as they do in traditional telephony. TDM cards range from four ports to 30 ports, depending on the function; the Ethernet Phone card provides 32 ports, and the Peer-to-Peer Protocol Handler card supports 256 ports. The NEAX IPXDM provides over 750 service features and its modular hardware and software design allows the NEAX IPXDM to grow incrementally supporting from 384 ports to over 16,000 ports.

The system also delivers advanced applications such as Fusion, CCIS and IP Networking, IP Stations (both IP enabled and peer-to-peer), Remote Switching, Electronic Tandem Networking, Centralized Attendant Service, Direct Digital Interface, Integrated ACD, Voice Messaging Integration, along with many other feature-rich capabilities via the Open Applications Interface (OAI). Finally, a key advantage of the NEAX IPXDM is NEC�s ability to leverage their existing telephony applications and features from their traditional PBX product line and extend it to the VoIP realm.

[ Return To The May 2002 Table Of Contents ]



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