Voice over Wireless Lan should enjoy better quality following IEEE
ratification of the 802.11r standard which was released in July with little
fanfare.
Enterprises currently dissatisfied with wireless IP telephony should think
again, according to the IEEE, since the 802.11r standard will allow Wi-Fi kit to
roam much more quickly between access points than current 802.11a/b/g/n
hardware.
Such an improvement would benefit VoIP calls being made through wireless
networks, as well as video conferencing.
The new IEEE standard, also known as 'Fast Basic Service Set Transition',
aims to reduce access points handoff time to well under 50ms, compared to the
current 100ms.
Extended handoff times can lead to significantly degraded voice calls. When
the wireless connection is encrypted using Wi-Fi Protected Access or WPA2 these
handoff times lengthen to seconds.
However, questions remain as to how long vendors will take to market wireless
kit supporting 802.11r.
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