SpectraLink distributes its
products through strategic OEM partnerships and industry-leading service,
equipment, and application providers, cultivating a vast customer base among
industries including retail, education, healthcare , manufacturing, finance,
information systems and telecommunications.

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Tendril Ships the Tendril Service Broker on Second Platform for Wireless Sensor and Control Networks

The integration furthers
SpectraLink 's commitment to wireless interoperability by providing enterprise
customers with greater flexibility in vendor selection as they expand their
networks and implement wired and wireless IP telephony.

S.

This release may contain forward-looking statements that are subject to
risks and uncertainties including SpectraLink's ability to successfully
incorporate additional interfaces into its products to benefit its customers
that may not result in increased future sales.

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tendrilinc.
"Tendril is committed to offering the Service Broker on multiple
platforms, thus allowing companies to leverage our system software no matter
which network technology they choose to build with," said Tim Enwall , CEO of
Tendril."
The EmberZNet network stack is a scalable, self-organizing, self-healing
wireless networking platform based on the ZigBee specifications. (Nasdaq: SLNK), the leader in enterprise wireless
communications, today announced the integration of its industry leading
wireless telephony products with Inter-Tel's Axxess(R) Converged
Communications Platform, providing customers with access to converged services
that support Session Initiation Protocol (SIP).

About SpectraLink
SpectraLink Corporation is the leading U.com. All other trademarks used herein are
the property of their respective owners.

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com), the leader
in system software for deploying wireless sensor and control networks, today
announced that it has begun shipping the Tendril Service Broker v1.0 on a
second low-power wireless network platform -- the EmberZNet 2.

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com."
"Our integration with Inter-Tel demonstrates our continued work to promote
interoperability in the wireless space," said Jill Kenney, SpectraLink
executive vice president of Sales and Marketing.

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Tendril's technology accomplishes this by providing an
integrated enterprise-side and node-side programming interface for managing
wireless sensor and control networks -- allowing organizations to quickly,
easily orchestrate and deploy their applications.0, please visit http://www. SpectraLink's NetLink(TM) Wireless
Telephones allow for converged mobile voice and data communications on a
single wireless infrastructure by operating as client devices on 802.

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In addition, EmberZNet applications can take
advantage of the industrial -strength reliability and unprecedented ease of use
of the Ember Transport Layer capabilities.tendrilinc . SIP Support Boosts Interoperability for Customers

SAN JOSE, Calif., VON SPRING 2005,
SpectraLink Corp.

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Tendril Service Broker Now Supports EmberZNet 2. This will allow
a wider and wider range of companies to use our critical system software to
quickly deploy -- in a matter of a few days -- wireless sensor and control
applications and easily manage those networks as their use expands. For more information about
Tendril, visit http://www. More information about
potential risk factors that could affect our results is available in
SpectraLink's filings with the Securities and Exchange Commission on Form 10-K
for the year ended Dec.

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EmberZNet provides all
of the standard benefits that come with ZigBee including: flexible topologies,
high security, broad interoperability , low cost, long battery life and
integrated network management. 31, 2004, and subsequent Form 10 -Q filings.

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Interoperability is a key component of SIP, with the protocol's design to
connect a wide variety of multimedia endpoints and applications together in a
standard format. With Inter -Tel providing the power of SIP on its platform,
which enables Internet Protocol (IP), wireless, digital and analog telephones,
enterprises can obtain business-class features such as call forwarding,
conferencing , call transfer and many others that users have come to expect on
their SpectraLink(R) Wireless Telephones .inter-tel.

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0 ZigBee-Compliant Protocol

DENVER, Tendril (http://www. "A number of customers requested a version of our system software
for this ZigBee-compliant platform, and we are pleased to fully support their
deployments by shipping the Tendril Service Broker on the EmberZNet platform . These platforms include Chipcon,
Freescale, Renesas and other network platform volume leaders.

com.

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The Tendril Service Broker is the first system software that allows
organizations to fully leverage the power of wireless sensor networks that
integrate different types of low-power sensors with enterprise or product
computing systems. EmberZNet
supports a variety of network topologies for wireless monitoring and control
applications, including mesh, star, and cluster tree.tendrilinc .

SpectraLink Integrates With Inter-Tel's Axxess Platform

manufacturer and provider of
wireless telephone systems for the workplace.

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ember.

interprocess interoperability

"We chose SpectraLink for its innovative wireless voice
products, which are the leading choice among businesses of all types that are
looking to increase productivity through mobility. For more information, visit
http://www.

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com. To
achieve its vision, Tendril is leading the expansion of the Wireless Sensor
and Control Networks category by developing the Tendril Service Broker.

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"
Added Enwall: "As part of our multiple -platform strategy for wireless
sensor and control networks, Tendril plans to release a steady stream of
additional platforms over the next 6-12 months, which will continue to expand
the market for the Tendril Service Broker.
For more detailed information and product specifications about the Tendril
Service Broker, please visit the product page at http://www. For more
information about EmberZNet 2.

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0
ZigBee-compliant network stack.

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The Tendril Service Broker is also compliant
with the EmberNet proprietary network platform and will support numerous
additional network platforms in the coming months.spectralink.

ipc interfaces

An industry-leading provider focused on the communication
needs of business enterprises, Inter-Tel employs over 2,000 communications
professionals, and services business customers through a network of 59
company-owned, direct sales offices and over 350 authorized providers in North
America, Europe, Japan and South Africa.

Trademarks: SpectraLink is a registered trademark, and NetLink is a
trademark, of SpectraLink Corporation.

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About Tendril
Tendril is at the forefront of the "Internet of Things" -- the next big
stage of computing -- which allows organizations to interact with the physical
world in areas where computing has previously been cost-prohibitive.
"Customers are looking for a combination of telephony products that will
grow with their enterprise network," said Jeff Ford, Inter-Tel chief
technology officer. "The ability to work with a
variety of vendors, while adhering to industry standards is something we've
always supported, and something that is becoming increasingly critical to
enterprises' migration strategies.

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More information is available at
http://www.

XPCOM, a lightweight cross platform COM work-alike, is the foundation for modularity in Mozilla, but it can also be used stand-alone.

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Our relationship with Inter-Tel provides a
winning combination to our customers.

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This
groundbreaking technology includes the first system software product of its
kind to sit on top of a variety of wireless sensor networks and offer a
programming interface to instantiate, manipulate and orchestrate previously
non-computerized activities related to buildings, factories, cities, crops,
homes and other objects in the physical world.11b
wireless LANs."

About Inter-Tel, Incorporated
Inter-Tel (Nasdaq: INTL) offers value-driven communications products;
applications utilizing networks and server -based communications software; and
a wide range of managed services that include voice and data network design
and traffic provisioning, custom application development, and financial
solutions packages .com.