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Wireless mesh for prestigious Japanese development

Strix Systems : 13 May, 2008  (Application Story)
Indoor wireless system in Japanese shopping and leisure development enables voice over IP and digital video surveillance
Strix Systems has announced the deployment of Strix Access/One Indoor Wireless Systems (IWS) for robust enterprise class services to the tenants and management of The Landmark Tower Yokohama, a fortress of structural and technical innovation in the futuristic Minato Mirai 21 district of Yokohama city.

Owned by Mitsubishi Estates, the tower stands 296m (970 ft), offers 392,000 sq m (4,219,000 sq ft) of commercial space and has the largest indoor multi-level shopping mall, the finest restaurants, clinics, a five star hotel and executive offices topped by the Sky Garden which provides a 360-degree view of the city and Mount Fuji. The tower is built to be stabilised by earthquake-proof engineering consisting of harmonic absorbers, tuned mass dampers, designed to prevent damage or structural failure by vibration.

The first of its kind, this is the largest pure voice over IP network in Japan and the largest commercial indoor facilities supporting advanced digital IP/PBX services over a wireless mesh network. In comparison with traditional legacy Private Automatic Branch eXchange (PBX) and Personal Handy-phone Systems (PHS), the VoIP network provides high quality digital voice at a reduced cost and provides robust voice services to tenants of every floor as well as the parking structures and the executive helicopter landing pad (helipad).

East Nippon Telegraph And Telephone (NTT EAST) provided the integration of the network which included the Fujitsu IP-PBX, SIP servers, 3G/WiFi dual handsets and Strix modular multi-radio Access/One Indoor Wireless System (IWS) which delivers and exceeds the requirements for security, coverage, capacity, seamless roaming and Class of Service (CoS).

Access/One IWS nodes are installed on each floor of the seventy storey tower. Mounted on the ceilings of hallways, the nodes provide blanket coverage, connecting services between floors with wireless or wired backhaul as defined by the network design. The Strix VoIP WiFi network has achieved more than a 60% reduction in access points in comparison to other industry recognised manufacturers.

"We are very happy with the results of the network," said Mitsubishi Estate Yokohama Branch. "The quality of voice calls on the network is excellent and a testament to the engineering by NTT EAST as well as the quality and reliability of the Strix Systems wireless, IP/PBX and NTT phone equipment used."

The system's available bandwidth and performance not only supports VoIP services, but allows for hot zone internet access services and distributed IP-based video surveillance cameras and servers.

"High performance delivering voice over IP over WiFi mesh in fixed and mobile applications is what our Access/One products are designed to accomplish and we're very happy that the Landmark Tower Yokohama has been deployed with our robust and cost-effective solution," said Martin Levetin, Senior Vice President Sales and Marketing for Strix Systems.
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