Avaya Leads Worldwide Enterprise IP Telephony Market in Shipments and Revenues for Third Quarter of 2006

Basking Ridge, New Jersey, November 15 (ots/PRNewswire) -

- Avaya marks 12th consecutive quarter of leadership in global
enterprise IP telephony revenues, with more than three points ahead
of nearest competitor

Avaya Inc. (NYSE: AV) has extended its lead in worldwide
Enterprise Internet Protocol (IP) Telephony shipments and revenues,
according to Synergy Research Group's 3Q 2006 Enterprise Voice Market
Shares Report. With this report, Avaya marks the twelfth straight
quarter in which the company has led in global enterprise IP
Telephony revenues -- pulling ahead by more than three points over
its nearest competitor. Avaya is a leading global provider of
business communications applications, systems and services.

The report shows Avaya leading in IP Telephony revenues (as
defined by Synergy) with 27.2 percent of the global market for the
third quarter of 2006, a two point gain over the company's second
quarter 2006. Avaya also led in IP Telephony shipments for the third
quarter with 24.2 percent of the market.

"Adoption of IP Telephony by businesses and organizations
continues to expand at a steady pace -- more than 14 million lines
have been shipped globally since January 1, 2006," said Jeremy Duke,
president and CEO, Synergy Research Group. "Our report shows that
Avaya continues its leading edge position in terms of market share
growth by outpacing industry averages quarter over quarter and year
over year."

In the third quarter, Avaya market share grew at more than twice
the industry average over the previous quarter according to the
report. Avaya IP Telephony shipments increased by 24.2 percent versus
the 10.4 percent for the industry; revenue growth was 18.1 percent
compared to 9.1 percent for the industry. Growth over the previous
year outpaced the industry in revenues by 8.3 percent and in
shipments by 6.4 percent.

"Businesses are clearly recognizing the next wave of competitive
differentiation will be built on a foundation of IP Telephony," said
Lou D' Ambrosio, president and CEO, Avaya. "While there is still a
long way to go before all 450 million enterprise lines globally are
converted to IP telephony, the accelerated adoption rate coupled with
Avaya's extended leadership demonstrates our partnership with
enterprises in leveraging converged communications for business
advantages."

IP telephony is software-based technology that uses Voice over
Internet Protocol (VoIP) to transmit voice over a data network. IP
telephony enables companies to find new levels of productivity,
efficiency and cost savings by consolidating business communications
systems, unifying and extending multimedia applications to workers
anywhere. Embedding real-time communications capabilities in business
applications and processes using IP Telephony can offer new models
for businesses with significant impact for customer service, revenue
generation and business continuity.

Avaya offers one of the industry's most comprehensive portfolios
of solutions for IP telephony -- Avaya MultiVantage(R) Communications
Applications -- with a flexible architecture that helps enable
enterprises to design a communications roadmap that supports their
business needs. Supported by Avaya Global Services and a global
network of authorized Avaya BusinessPartners, AlliancePartners and
DeveloperConnection technology partners, the portfolio brings
together Avaya's applications for unified communications, telephony,
contact centers and mobility, featuring Avaya Communication Manager,
the company's flagship IP telephony software. With the suite,
businesses have access to a single portfolio of open standards-based
applications that extends Avaya's IP telephony software across
enterprise operations and employee functions.

Forward Looking Statements

Certain statements contained in this press release may be
considered forward-looking statements within the meaning of the safe
harbor provisions of the Private Securities Litigation Reform Act of
1995. These statements may involve risks and uncertainties that could
cause actual outcomes and results to differ materially. For a list
and description of such risks and uncertainties, see the periodic
reports filed by Avaya with the United States Securities and Exchange
Commission ("SEC"), which are available at www.sec.gov, particularly
the information contained in Part I, Item 1, entitled "Forward
Looking Statements," of our Annual Report on Form 10-K for fiscal
2005 and the information contained in Part I, Item 2, entitled
"Forward Looking Statements," of our Quarterly Report on Form 10-Q
for the fiscal quarter ended March 31, 2006. Avaya disclaims any
intention or obligation to update or revise any forward-looking
statements, whether as a result of new information, future events or
otherwise.

About Avaya

Avaya Inc. designs, builds and manages communications networks for
more than one million businesses worldwide, including 90 percent of
the FORTUNE 500(R). Focused on businesses large to small, Avaya is a
world leader in secure and reliable Internet Protocol (IP) telephony
systems and communications software applications and services.

Driving the convergence of voice and data communications with
business applications -- and distinguished by comprehensive worldwide
services -- Avaya helps customers leverage existing and new networks
to achieve superior business results. For more information visit the
Avaya website: http://www.avaya.com.

Web site: http://www.avaya.com

ots Originaltext: Avaya-Tenovis
Im Internet recherchierbar: http://www.presseportal.de

Contact:
Media: Deb Kline, +1-908-953-6179, klined@avaya.com, or Investors:
Matt Booher, +1-908-953-7500, mbooher@avaya.com, both of Avaya