Exhibit 99.1

AVAYA REPORTS FOURTH FISCAL QUARTER AND FISCAL YEAR 2012 RESULTS

Revenues up sequentially to $1.28 billion

Fourth Quarter 2012

Santa Clara, CA. – Avaya Inc., a global provider of business communications and collaboration systems, software and services, today reported results for the fourth quarter and full-year ended September 30, 2012. For the fourth fiscal quarter, revenue was $1.28 billion, up 2% compared to the prior quarter and down 10% compared to the fourth fiscal quarter of fiscal 2011. Operating income was $76 million compared to operating income of $23 million for the prior quarter and $84 million for the fourth quarter of fiscal 2011. Fourth quarter adjusted EBITDA was $267 million which compares to adjusted EBITDA of $225 million for the prior quarter and $293 million for the fourth quarter of fiscal 2011. Cash flow from operations was $104 million for the fourth quarter. Cash and cash equivalents was $337 million as of September 30, 2012 up 24% from the prior quarter.

For fiscal 2012, Avaya reported revenue of $5.17 billion, down 7% compared to fiscal 2011 revenue of $5.55 billion. Operating income improved by $209 million to $115 million in fiscal 2012 compared to an operating loss of $94 million in fiscal 2011. Fiscal 2012 adjusted EBITDA of $971 was unchanged compared to fiscal 2011.

“Fiscal 2012 was challenged by cautious or deferred spending in several sectors. We are encouraged by our performance over the last two quarters and our operating income improvement for the year,” said Kevin Kennedy, President and CEO, Avaya. “We’ve introduced new products in the small and medium business segment and in open mobile enterprise collaboration, as well as made an important video acquisition in Radvision. Continued expense management and surgical restructuring enabled double digit sequential quarterly improvements in adjusted EBITDA. Adjusted EBITDA as a percentage of revenue of 18.8% for fiscal 2012 was at its highest level in over six years. As we move forward in fiscal 2013 we remain focused on growth via new product absorption and continued productivity improvements.”

Fourth Fiscal Quarter Highlights

Conference Call and Webcast

Avaya will host a conference call to discuss these results at 5:00 p.m. EST on Tuesday, December 11, 2012. To access the conference call, dial 800-882-9327 in the U.S. or Canada and 706-645-9730 for international callers and provide the operator the conference passcode number of 76646392. To ensure you are on the call from the start, we suggest you access the call 10-15 minutes prior to the start of the call.

WEBCAST Information: Avaya will webcast this conference call live. To ensure that you are on the webcast, we suggest that you access our website (www.avaya.com/investors) 10-15 minutes prior to the start. Supplementary materials accompanying the conference call are available at the same location. Following the live webcast, a replay will be available on our archives at the same web address.

About Avaya

Avaya is a global provider of business collaboration and communications solutions, providing unified communications, contact centers, networking and related services to companies of all sizes around the world. For more information please visit www.avaya.com.

Certain statements contained in this press release are forward-looking statements. These statements may be identified by the use of forward-looking terminology such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “may,” “might,” “plan,” “potential,” “predict,” “should” or “will” or other similar terminology. We have based these forward-looking statements on our current expectations, assumptions, estimates and projections. While we believe these expectations, assumptions, estimates and projections are reasonable, such forward looking statements are only predictions and involve known and unknown risks and uncertainties, many of which are beyond our control. These and other important factors may cause our actual results, performance or achievements to differ materially from any future results, performance or achievements expressed or implied by these forward-looking statements. For a list and description of such risks and uncertainties, please refer to Avaya’s filings with the SEC that are available at www.sec.gov. 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.

The following financial tables are presented in accordance with GAAP, unless otherwise specified:

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Consolidated Statements of Operations

(Unaudited; in millions)

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Consolidated Balance Sheets

(Unaudited; in millions)

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Condensed Statements of Cash Flows

(Unaudited; in millions)

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Supplemental Revenue Tables

(Unaudited; in millions)

Use of Non-GAAP (Adjusted) Financial Measures

The information furnished in this release includes non-GAAP financial measures that differ from measures calculated in accordance with GAAP, including adjusted EBITDA, Non-GAAP gross margin and Non-GAAP operating income.

EBITDA is defined as net income (loss) before income taxes, interest expense, interest income and depreciation and amortization. Adjusted EBITDA is EBITDA further adjusted to exclude certain charges and other adjustments permitted in calculating covenant compliance under our debt agreements as further described in our SEC filings.

We believe that including supplementary information concerning adjusted EBITDA is appropriate to provide additional information to investors to demonstrate compliance with our debt agreements and because it serves as a basis for determining management compensation. In addition, we believe adjusted EBITDA provides more comparability between our historical results and results that reflect purchase accounting and our current capital structure. Accordingly, adjusted EBITDA measures our financial performance based on operational factors that management can impact in the short-term, namely the company’s pricing strategies, volume, costs and expenses of the organization.

Adjusted EBITDA has limitations as an analytical tool. Adjusted EBITDA does not represent net income (loss) or cash flow from operations as those terms are defined by GAAP and does not necessarily indicate whether cash flows will be sufficient to fund cash needs. While adjusted EBITDA and similar measures are frequently used as measures of operations and the ability to meet debt service requirements, these terms are not necessarily comparable to other similarly titled captions of other companies due to the potential inconsistencies in the method of calculation. Adjusted EBITDA does not reflect the impact of earnings or charges resulting from matters that we consider not to be indicative of our ongoing operations. In particular, based on our debt agreements the definition of adjusted EBITDA allows us to add back certain non-cash charges that are deducted in calculating net income (loss). Our debt agreements also allow us to add back restructuring charges, certain fees payable to our private equity sponsors and other specific cash costs and expenses as defined in the agreements and that portion of our pension costs, other post-employment benefits costs, and non-retirement post-employment benefits costs representing the amortization of pension service costs and actuarial gain or loss associated with these employment benefits. However, these are expenses that may recur, may vary and are difficult to predict. Further, our debt agreements require that adjusted EBITDA be calculated for the most recent four fiscal quarters. As a result, the measure can be disproportionately affected by a particularly strong or weak quarter. Further, it may not be comparable to the measure for any subsequent four-quarter period or any complete fiscal year.

Non-GAAP gross margin excludes the amortization of technology intangible assets, impairment of long lived assets, transition services agreement costs incurred in connection with the acquisition of Nortel’s enterprise solutions business, share based compensation and purchase accounting adjustments. We have included Non-GAAP gross margin because we believe it provides additional useful information to investors regarding our operations by excluding those charges that management does not believe are reflective of the company’s ongoing operating results when assessing the performance of the business.

Non-GAAP operating income excludes the amortization of technology intangible assets, restructuring and impairment charges, acquisition and integration related costs, share based compensation, impairment of long lived assets and purchase accounting adjustments. We have included Non-GAAP operating income because we believe it provides additional useful information to investors regarding our operations by excluding those charges that management does not believe are reflective of the company’s ongoing operating results when assessing the performance of the business.

The following tables reconcile GAAP measures to non-GAAP measures:

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Supplemental Schedule of Non-GAAP Adjusted EBITDA

(Unaudited; in millions)

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Supplemental Schedules of Non-GAAP Reconciliations

(Unaudited; in millions)