Abstract

NEC commissioned The Tolly Group to evaluate its WL2000 Series Wireless Switch and NEC WL1200 Access Point. The WL2000 Series Wireless Switch offers up to 24 10/100 Ethernet interfaces to provide Ethernet switching capabilities and communication paths to WL1200 Access Points. The NEC WL1200 AP is an 802.11 a/b/g device that connects to the WL2000 Series Wireless Switch via Fast Ethernet and communicated with wireless clients.

Engineers sought to determine the effectiveness of NEC products at supporting VoIP over 802.11b wireless LAN connections with key capabilities such as: QoS prioritization of VoIP over non real-time traffic, support for maximum VoIP phone loading, acceptable hand-off times for calls roaming between switches, and acceptable latency characteristics.