Airvana First in Industry to Demonstrate QoS-Enabled VoIP Over Commercial RAN

CHELMSFORD, Mass., Oct. 24, 2006 (PRIMEZONE) -- Airvana, Inc.
(www.airvana.com), an innovator and leader in mobile broadband
infrastructure based on 3G mobile broadband technology, today
announced it made the industry's first Quality of Service (QoS)
enabled mobile-to-mobile VoIP call on a commercially available EV-DO
Rev. A network. Airvana demonstrated the call in its Multimedia/VoIP
laboratory.

"We are pleased to have reached this significant industry milestone,"
said Vedat Eyuboglu, CTO of Airvana. "VoIP is a highly
delay-sensitive application, and delivering VoIP over an IP-based
wireless infrastructure requires sophisticated QoS techniques. Our
demonstration of VoIP on Airvana's QoS-enabled commercial EV-DO Rev.
A network infrastructure is a significant step towards commercial
VoIP services over EV-DO Rev. A."

Specifically, Airvana made mobile-to-mobile VoIP calls using handsets
based on QUALCOMM's MSM6800 baseband ASIC and software to establish
QoS-based calls over delay-sensitive/low-latency flows in a
commercial-grade Rev. A network. EV-DO Rev. A supports multiple QoS
flows per handset each with its own unique QoS requirements. This
capability allows VoIP and other multimedia traffic to receive higher
priority over other best-effort traffic, such as web, email, and file
transfer traffic.

"QUALCOMM is pleased to see Airvana's VoIP Lab succeed in this
critical demonstration," said Roberto Padovani, CTO for QUALCOMM.
"Rev. A promises to deliver a new breed of performance on CDMA2000
networks, and the VoIP Lab serves as a viable proving ground for
operators preparing for Rev. A upgrades."

About the VoIP Lab

Airvana established its Multimedia/VoIP laboratory to test and
demonstrate commercial IP-based mobile broadband 1xEV-DO Rev. A and
fixed-mobile convergence systems. The VoIP Lab seeks to identify
issues that may arise when voice and other multimedia data packets
converge on a single network. From Quality of Service (QoS) to
individual call performance, the VoIP Lab will help ensure that
wireless VoIP networks run as flawlessly as possible.

The VoIP Lab has three categories of testing and demonstration:
applications, technical performance and capacity. Applications
testing will evaluate live VoIP calls with QoS on a mixed-load
network; technical performance testing will measure enhancements to
symmetry and reductions in latency; and capacity testing will
demonstrate the full commercial viability of the simultaneous
voice/video/data triple play. Over time, Airvana will continue to
invite applications vendors to demonstrate advanced VoIP applications.

About Airvana

Airvana is an innovative leader providing mobile broadband
infrastructure based on third-generation (3G) wireless packet data
technology. Airvana is the first company to combine advanced CDMA2000
1xEV-DO broadband technology with an innovative IP-Radio Access
Network architecture -providing carrier-class performance and
reliability. Networks based on Airvana's technology service millions
of consumer and business subscribers; and a wide range of mobile
broadband information, communication and entertainment applications.

Worldwide, Airvana's mobile broadband systems are deployed on six
continents in 16 major networks by industry-leading service providers
who demand high standards of carrier-class performance. In North
America, Airvana's largest deployments are Verizon Wireless (USA),
Sprint PCS (USA), Bell Mobility (Canada) and Telus (Canada). The
company's products are also deployed in networks including Telstra
(Australia), Vesper (Brazil), Eurotel (Czech Republic), and Pelephone
(Israel).

In addition, Airvana builds solutions for other wireless markets
including in-flight, air-to-ground communications; and fixed-mobile
convergence (FMC) for the integration of cellular and IP-based access
technologies.

Airvana is headquartered in Chelmsford, MA, USA. For more
information, please visit the company's Web site at
http://www.airvana.com

QUALCOMM is a registered trademark of QUALCOMM Incorporated. MSM6800
is a trademark of QUALCOMM Incorporated. CDMA2000 is a registered
trademark of the Telecommunications Industry Association (TIA USA).
All other trademarks are the property of their respective owners.