NEW YORK and SANTA CRUZ, Calif. — September 13, 2006 — Plantronics, Inc. (NYSE:PLT) today announced that its suite of Voice Over Internet Protocol (VoIP) headset solutions, including the Plantronics Voyager™ 510-USB, the first Bluetooth® headset system optimized for VoIP communications, will support IBM Lotus Sametime 7.5 software to enhance real-time collaboration in the office. Plantronics demonstrated the Voyager 510-USB’s wireless call control features with Lotus Sametime 7.5 today at IBM’s “Real Time. Right Now.” event.

As business becomes increasingly virtual and voice-enabled communication tools expand on the desktop, real-time collaboration becomes a driver for competitive advantage.   Plantronics enterprise headset systems enhance collaboration platforms, such as Lotus Sametime 7.5, by providing a single headset to use across multiple communication devices and applications, and the wireless freedom to stay connected in real-time up to 200 feet away from the PC.  With Plantronics’ portfolio of enterprise headsets and Lotus Sametime 7.5, companies can further eliminate disconnects in workflows, speed communications and reduce latencies in decision processes for improved business efficiency.

“Together, IBM and Plantronics are giving business professionals the freedom to unify their communications and be connected in real-time, even when away from their desk,” said Chuck Yort, vice president of the Business Solutions Group, Plantronics. “Integrating Plantronics headsets with Lotus Sametime 7.5 is the first step towards executing Plantronics’ vision of real-time, multi-modal communications within the enterprise — and do so with the enterprise-class reliability and audio quality Plantronics has been known for over the past 40 years.”

“Real-time technology is eliminating barriers between people and has profoundly changed the speed with which business is conducted,” said Ken Bisconti, vice president of Lotus Software Products, IBM. “Plantronics’ support of the Lotus Sametime real-time collaboration platform with its VoIP headset solutions reduces complexity and makes it easier for business users to communicate more efficiently around the business they are conducting.”

VoIP Headsets for Today’s Business Environment

Plantronics has a long legacy of developing high-quality headset solutions across numerous infrastructures and for numerous applications.  By understanding what to deliver and receive in the VoIP network and managing specific audio parameters, Plantronics develops products that operate optimally and intelligently within VoIP infrastructures.

Additionally, Plantronics is extending the benefits of VoIP communications anywhere in the office through its PerSonoCall® software.  PerSonoCall provides remote ring detection and enables users to wirelessly answer/end PC telephony calls away from their desk. By “cutting the cord” between the PC and headset, professionals have the freedom to roam within the office, talk between conference rooms or at the printer, and be completely hands free to multi-task and collaborate more effectively. PerSonoCall will support Lotus Sametime 7.5 later this year.

Highlights from Plantronics’ family of VoIP-ready headsets, include:

• Plantronics Voyager 510-USB: An award-winning Bluetooth headset system that provides instant VoIP connectivity and extends the reach of the network via a wireless Bluetooth headset and plug-and-play Bluetooth adapter. The Plantronics Voyager 510-USB features multipoint technology to allow users to switch between multiple Bluetooth-enabled devices, including PCs and mobile phones, with the touch of a button.  The Voyager 510-USB comes with PerSonoCall software for remote ring detection and call answer/end capabilities.

• Plantronics CS50-USB: A premium wireless VoIP system that provides unmatched fidelity and superb range. With the CS50-USB, users can have conversations and answer/end calls up to 200 feet away from their PC. The Plantronics CS50-USB includes four different wearing styles and one-touch call management convenience. The CS50-USB comes with PerSonoCall software for remote ring detection and call answer/end.

• Plantronics DA Series: A family of digital adapters, including the Plantronics DA60, DA55 and DA40, that optimize VoIP communications via traditional headsets. The adapters connect any Plantronics professional headset to any softphone using the computer’s USB port.

• Plantronics .Audio™ Series: A suite of corded digital and analog PC stereo headsets that boast great sound quality, as well as contemporary designs that reinforce Plantronics’ commitment to style.  The headsets provide the convenience of plug-and-play compatibility and excellent stereo sound for VoIP conversations and music listening.

• Plantronics 3-in-1 Series: A duo of corded headsets that offer 3-in-1 versatility for Internet PC, cordless and mobile phones. Designed to meet the voice communications needs of work-at-home professionals, these headsets are optimized for VoIP soft phone applications and also work with cordless and mobile phones. The M214i and MX500i 3-in-1 headsets will be available in early October.

For more information about Plantronics’ VoIP-ready products, please visit:   http://www.plantronics.com/north_america/en_US/voip/.

About Plantronics
In 1969, a Plantronics headset carried the historic first words from the moon: “That’s one small step for man, one giant leap for mankind.”  Since then, Plantronics has become the headset of choice for mission-critical applications such as air traffic control, 911 dispatch, and the New York Stock Exchange.  Today, this history of Sound Innovation™ is the basis for every product we build for the office, contact center, personal mobile, entertainment and residential markets. The Plantronics family of brands includes Plantronics, Altec Lansing, Clarity, and Volume Logic. For more information, go to www.plantronics.com or call (800) 544-4660.

Altec Lansing, .Audio, Clarity, PerSonoCall, Plantronics, Plantronics Voyager, Sound Innovation, and Volume Logic are trademarks or registered trademarks of Plantronics, Inc. IBM, Lotus and Sametime are trademarks of International Business Machines Corporation in the United States, other countries, or both.  The Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Plantronics, Inc. is under license. All other trademarks are the property of their respective owners.

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All product and company names mentioned herein may be the trademarks of their respective owners.