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Aruba Preps Enterprise For Wireless VoIP |
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Written by Adam Gosling
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Thursday, 09 November 2006 |
Aruba Networks has announced product enhancements that it
says will strengthen its Voice over Wi-Fi (VoWLAN) performance and capabilities.
While maintaining standards compliance the company says it
has built on the baseline requirements to make VoWLAN networks a
realistic option for large enterprise.
The wireless networking vendor says its added the solidity, scalability,
performance and manageability required before enterprises migrate to
dual-mode/fixed-mobile convergence implementations.
Its part of a five stage plan and this is only the second
stage, says Aruba, but the new product
features address QoS, capacity, handover and battery life.
With full implementation of the WMM specification, plus
additional enhancements, to ensure consistency between the QoS level and
traffic type, the new functionality will allow network administrators to adjust
QoS levels as appropriate.
And with full support for the TSpec protocol Aruba can offer increased control over the number of
active voice calls on an access point (AP) at any given time, assuring
bandwidth availability and better call quality, even as voice clients roam
between APs.
As your users roam, Opportunistic Key Caching (OKC) for WPA/WPA2
clients reduces authentication time during hand over to minimise call
interruption. Clients implementing these features have shown consistent handoff
times of less than 8 milliseconds on the Aruba
infrastructure, claims the company.
To help out with battery life WMM-PS (a Wi-Fi Alliance
certification based on the IEEE 802.11e U-APSD standard) along with other
enhancements change the power use profile of dual mode handsets allowing for three
to five times greater battery life.
Aruba says it is
implementing proxy ARP, multicast filtering, and a new capability called
"battery boost" to extend sleep times and reduce unnecessary
battery-draining traffic to clients.
The company says these features increase talk time up to
more than 4 hours and standby time in excess of 100 hours.
"The new features were developed based on direct
customer requests," said Peter Thornycroft, product manager for Aruba
Networks.
"It's noteworthy that most of the requested features focus on
the areas of scalability and management, a reflection that the mechanics of
carrying high-quality voice have reached a high enough level that these
customers are now expanding their voice deployments from the hundreds to the
thousands of clients," he said.
"The next stage will be a move to dual-mode handsets and
fixed-mobile convergence, providing enterprises with even greater
mobility."
www.arubanetworks.com
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