Plantronics Inc. (NYSE: PLT) announced that it is a Preferred Solution Developer within the Unified Communications technology category of Cisco’s Developer Network Program. The Cisco Developer Network unites Cisco with third-party developers of hardware and software to deliver tested interoperable solutions to joint customers. As a Preferred Solution Developer, Plantronics has worked closely with Cisco to deliver enhanced solutions that deliver greater interoperability with Cisco networking solutions. Plantronics also shares Cisco’s strong commitment to customer service and satisfaction, has completed interoperability verification testing* based on criteria set forth by Cisco, and can provide their customers 24 hour, 5 days a week customer support. With offerings such as the Savi ® 700 Series, Blackwire ® 300/400/600 Series, CS500 Series, Voyager ® PRO UC, and Calisto ® 800 Series audio devices listed as CDN tested compatible in the Cisco Developer Network Marketplace Solutions Catalog [ https://marketplace.cisco.com/catalog/companies/Plantronics], customers can more quickly deploy a broad range of Cisco Compatible business applications, devices, or services that can enhance the capabilities, performance, and management of their Cisco network. For more information on Plantronics solutions, please visit http://www.plantronics.com/us/partners/cisco/. About Plantronics - Simply Smarter Communications™ Plantronics is a global leader in audio communications for businesses and consumers. We have pioneered new trends in audio technology for 50 years, creating innovative products that allow people to simply communicate. From unified communication solutions to Bluetooth® headsets, we deliver uncompromising quality, an ideal experience, and extraordinary service. Plantronics is used by every company in the Fortune 100, as well as 911 dispatch, air traffic control and the New York Stock Exchange. For more information, please visit www.plantronics.com or call (800) 544-4660. * Interoperability testing is designed to simulate typical customer configurations, and does not replace the need for on-site testing in conjunction with actual implementation.