A Wireless IP Phone System for Rural Applicationsgration |
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The wireless IP phone system is based on the integration of two advanced products: the RTB2400
wireless router and the IP Phone 323. The RTB2400 is manufactured by Root, Inc. (www.roothq.
com/e/index. html), a Tokyo-based R&D firm founded in 1993, of which KDDI-NS is a shareholder.
IP Phone 323 is a software product of OSI Plus Corporation, a KDDI subsidiary (www.osiplus.co.jp).ucts described therein.
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Client Stations |
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The wireless IP phone system consists of multiple Client Stations managed and monitored by computers
located at a Center Station. At the Client Station, the wireless router equipment consists of an antenna, a main unit, a junction unit,
and interconnection cables. An IP phone gateway (GW) is connected to the router equipment using a
10 Base-T interface. The gateway contains two ports, each of which connects a standard telephone set. |
Center Station |
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The main Center Station houses a management server for the IP phone network and an SNMP server to
monitor the wireless router network. As with a PC-based local area network, an SNMP server is required
for each unit system (comparable to a closed LAN). However, the IP phone management server has the
capacity to serve a large number of unit systems and more than one is unlikely to be needed. Therefore
local Center Stations can be established at appropriate client sites, such as public office buildings, to
house local SNMP servers. A client site is used in order to make the full set of wireless routers available
to support customer lines. |
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