Aruba Preps Enterprise For Wireless VoIP

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 a 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.”

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