MAHWAH, N.J., June 09, 2008--Radware (NASDAQ: RDWR), the leading provider of integrated application delivery solutions for business-smart networking, today announced Virtual PBX, inventor and leading supplier of hosted PBX (private branch exchange) services, has deployed AppDirector, Radware’s intelligent application delivery controllers (ADC) to scale its Voice over Internet Protocol (VoIP) infrastructure and build cost-effective fault tolerant SIP (session initiation protocol) proxy servers; enabling enhanced end-user service within a fully-redundant communications environment.
As the enterprise telephony market trends are moving from the traditional PSTN (public switched telephone network) toward VoIP service, many service providers risk a loss of reliability during this migration; resulting in dissatisfied customers and a major loss in revenue. To optimize network dependability during its own VoIP transition, and ensure customer satisfaction through high-availability and by lowering the cost for terminating and originating phone calls through IP, Virtual PBX looked to Radware to assist in building fault-tolerant SIP proxies and RADIUS servers, and that would allow the scaling of the number of SIP/TDM gateways that would process the traffic to accommodate growth.
Radware’s award-winning AppDirector solution is known to enhance the delivery of applications over IP networks by bridging the gap between applications and networks. The solution has enabled Virtual PBX to deploy multiple independent SIP proxy servers that all “talk” to the same SQL back-end datastore, without the need to pay any additional licensing fees – a true cost benefit of deploying the Radware solution.
“Radware’s AppDirectors were the only load balancers that we found that could truly manage any kind of IP traffic,” said Stephen Lange, Chief Technology Officer, Virtual PBX. “We worked with other providers who promised that their products could load balance SIP and RTP traffic, but they did not work to our satisfaction. Also, the fact that we could deploy AppDirector in a fault-tolerant active-standby pair was a deciding factor.”
When looking at the business case, AppDirector allowed Virtual PBX the flexibility to move calls throughout its network using IP; enabling the Company to bring new media services online easily, yielding new revenue streams – all the while presenting a single IP end-point that any carrier could drive calls to. To ensure new media services would integrate with its network, AppDirector allowed Virtual PBX to take servers and gateways down in order to perform interoperability testing or maintenance without impacting service or causing outages to its clients.
“By working closely with Virtual PBX, we began to understand their business-critical pain points, and how best to overcome these challenges – including their need for greater capacity,” said Bob Simpson, VP Service Provider Business, Radware. “Our AppDirector solution has allowed Virtual PBX to scale its VoIP infrastructure, without the need to forklift existing hardware – a major difference between Radware and the competition.”
Critical to scaling Virtual PBX’s VoIP network, AppDirector has enabled the company to build distributed farms of servers and gateways, where capacity could simply be added by bringing in new servers or gateways. This was an attractive scaling mechanism for Virtual PBX, as they had already built redundant farms of voice nodes answering PSTN calls. With AppDirector, Virtual PBX continued to provide high-availability for both PSTN and VoIP traffic using the same paradigm.
Virtual PBX® pioneered the hosted PBX market, introducing the first service of its class in 1997. Virtual PBX utilizes the public switched telephone network and the internet to provide PBX functionality as a hosted service. The three primary customers for Virtual PBX services include small businesses that want full PBX functionality without the capital and support expense of installed equipment; companies of any size that need to route calls to telecommuters or other employees outside of a main office; and enterprises looking for phone system disaster recovery solutions. Additional information about Virtual PBX can be found at http://www.virtualpbx.com or by calling 888-825-0800.
Radware (NASDAQ:RDWR), the global leader in integrated application delivery solutions, assures the full availability, maximum performance, and complete security of business-critical applications for more than 5,000 enterprises and carriers worldwide. With APSolute™, Radware's comprehensive and award-winning suite of intelligent front-end, access, and security products, companies in every industry can drive business productivity, improve profitability, and reduce IT operating and infrastructure costs by making their networks "business smart." For more information, please visit www.radware.com.