Avaya
An American enterprise communications company focused on customer experience, contact centers, unified communications, and cloud services.
Last updated August 21, 2026
Overview
Avaya is an American enterprise technology company that develops and delivers communications software, contact-center systems, customer-experience tools, and related services. Its offerings are designed primarily for organizations that need to manage large volumes of employee, customer, and service interactions across voice, video, messaging, digital channels, and automated workflows. The company has historically served large enterprises, public-sector organizations, and other institutions with complex communications requirements, while also offering products for smaller and mid-sized businesses. The company was created in 2000 when Lucent Technologies separated its enterprise communications business into an independent company. Avaya inherited technologies, products, intellectual property, engineering capabilities, and customer relationships associated with the Bell System and Lucent enterprise communications heritage. This background gave it a substantial installed base in business telephony, private branch exchange systems, call centers, and unified communications. Avaya subsequently expanded from traditional telephony into Internet Protocol communications, collaboration software, contact-center platforms, professional services, maintenance, and cloud-based delivery models. Avaya became a publicly traded company after its separation from Lucent and traded on the New York Stock Exchange from 2000 until its acquisition in 2007 by Sierra Holdings, a vehicle owned by TPG Capital and Silver Lake Partners. The transaction took Avaya private and was followed by continued portfolio restructuring, outsourcing, acquisitions, and efforts to shift the business toward software and services. In 2009, Avaya acquired significant enterprise voice, data, and government-related assets from Nortel through Nortel's bankruptcy proceedings. The company also entered partnerships intended to accelerate cloud adoption, including a 2019 relationship with RingCentral that produced Avaya Cloud Office, a unified communications as a service offering. Avaya's business has been shaped by the industry's transition from hardware-based premises systems to software-defined, subscription, hybrid, and cloud communications. Its principal solution areas include unified communications and collaboration, customer-experience management, contact-center operations, communications platforms, workflow integration, and associated implementation and support services. Products such as Avaya Aura, Avaya IP Office, and Avaya OneCloud have represented different parts of its enterprise communications portfolio, although product names, packaging, and delivery models have changed over time. The company experienced significant financial pressure during the 2010s and early 2020s. Avaya entered Chapter 11 bankruptcy protection in 2017 and completed a court-approved restructuring later that year. It returned to the public markets in 2017 under the symbol AVYA, but filed for Chapter 11 protection again in February 2023. Its shares were delisted from the New York Stock Exchange during that process, and the company completed its restructuring on May 1, 2023. Avaya emerged as a privately held company owned by former creditors and continued operating under the Avaya name. Today, Avaya remains associated with enterprise-grade communications and customer-interaction infrastructure. Its market position is based on a combination of installed technology, specialized contact-center capabilities, integration with business systems, professional services, and migration options connecting premises-based and cloud environments. The brand is particularly relevant to organizations for which communications continuity, regulatory requirements, operational scale, and integration with existing systems are important purchasing considerations.
History
Avaya's roots lie in the enterprise communications activities of AT&T and Lucent Technologies. In the 1990s, AT&T reorganized parts of its business, and Lucent Technologies subsequently sought to separate and reposition operating units as it confronted financial and competitive pressures. Avaya was established in 2000 through the spin-off of Lucent's enterprise communications business. As an independent company, Avaya inherited a broad portfolio covering business telephony, private branch exchange systems, call centers, voice networking, and associated services. Its initial market identity was closely connected to large installed bases of enterprise communications equipment. During the following years, the company developed and acquired technologies intended to support the migration from traditional circuit-based systems to Internet Protocol communications, unified communications, collaboration, and software-led contact-center operations. In May 2001, Celestica acquired selected Avaya products and manufacturing processes and entered into a manufacturing-services and supply-chain relationship involving facilities in Denver and Little Rock. The arrangement reflected Avaya's broader movement toward outsourced manufacturing and a greater focus on product development, software, sales, and services. Avaya remained active in portfolio expansion, and in 2009 it won an auction for major Nortel enterprise voice and data assets. The transaction also included government-related business assets, strengthening Avaya's position among public-sector and large-enterprise customers. Avaya was acquired in October 2007 by Sierra Holdings, a company owned by TPG Capital and Silver Lake Partners, in a transaction reported at approximately $8.2 billion. Avaya operated as a private-equity-owned company for roughly a decade before returning to the public markets in December 2017. During this period, the company continued to adjust its portfolio as enterprise communications moved toward IP, software, hosted services, and cloud delivery. The company also pursued brand-building and ecosystem activities outside its core product portfolio. In 2014, it became the naming-rights partner for the San Jose Earthquakes' new stadium under a ten-year agreement. Avaya later sought to reduce its commitment during its financial restructuring, and the venue lost the Avaya name in 2020 before becoming PayPal Park in 2021. Avaya's financial difficulties led to a Chapter 11 filing in January 2017. A restructuring plan was approved and became effective in November of that year. The company subsequently returned to the NYSE under the AVYA symbol. Its strategy increasingly emphasized cloud communications, customer experience, contact centers, and hybrid deployment, including the 2019 partnership with RingCentral that created Avaya Cloud Office. In February 2023, Avaya filed for Chapter 11 protection again. The NYSE determined that its shares no longer met listing requirements, and trading moved away from the exchange during the restructuring. On May 1, 2023, Avaya completed the process and emerged as Avaya LLC, a privately held company owned by former creditors. The company continued to operate in enterprise communications, supporting customers through cloud, hybrid, and premises-based solutions.
- 2023Second Chapter 11 restructuring and emergence as Avaya LLC
Avaya filed for protection in February, was delisted from the NYSE, and completed its restructuring in May as a private creditor-owned company.
- 2019Avaya Cloud Office partnership announced
Avaya and RingCentral announced a strategic partnership to provide a unified communications as a service offering.
- 2017First Chapter 11 restructuring
Avaya and related affiliates filed for bankruptcy protection and completed a court-approved restructuring later that year.
- 2017Avaya Holdings shares begin NYSE trading
Shares of Avaya Holdings Corp. began trading on the NYSE under the symbol AVYA in December.
- 2014Avaya becomes naming-rights partner for San Jose stadium
The company became the naming-rights partner for the San Jose Earthquakes' new stadium, which opened as Avaya Stadium.
- 2009Avaya wins Nortel enterprise-assets auction
Avaya was announced as the winning bidder for Nortel enterprise voice, data, and government-related assets sold through bankruptcy proceedings.
- 2007Avaya is taken private
Sierra Holdings, owned by TPG Capital and Silver Lake Partners, acquired Avaya.
- 2001Celestica acquires selected manufacturing assets and processes
Celestica acquired specified Avaya products and manufacturing processes and entered a manufacturing and supply-chain services relationship.
- 2000Avaya is spun off from Lucent Technologies
Lucent Technologies separated its enterprise communications business into Avaya as an independent company.
Products and positioning
An enterprise-focused communications and customer-experience provider emphasizing reliability, scalability, hybrid deployment, contact-center expertise, and integration with complex organizational environments.
Avaya AuraUnified communications platform
Avaya Aura is an enterprise communications architecture associated with unified communications, voice services, session management, collaboration, and integration across organizational communication environments. It has been used by large organizations seeking to connect telephony, messaging, conferencing, and contact-center capabilities while maintaining centralized control and interoperability with existing systems.
Avaya IP OfficeBusiness communications system
Avaya IP Office is a communications platform aimed primarily at small and mid-sized businesses and distributed organizations. It supports business telephony and related unified communications functions, with deployment options designed to accommodate conventional, IP-based, and hybrid environments. The product has served as an entry point into Avaya's broader communications ecosystem.
Avaya OneCloudCloud communications and customer experience
Avaya OneCloud is a brand associated with Avaya's cloud-delivered communications, collaboration, contact-center, and customer-experience capabilities. It reflects the company's effort to package enterprise communications as cloud and hybrid services rather than relying exclusively on customer-owned premises equipment.
Avaya Cloud OfficeUnified communications as a service2019
Avaya Cloud Office was introduced through Avaya's strategic partnership with RingCentral. The service was intended to provide cloud-based unified communications and collaboration for Avaya customers, combining Avaya's enterprise customer reach and brand with RingCentral's cloud communications platform and operating model.
Flagship businesses
- Avaya OneCloud
- Avaya IP Office
- Avaya Aura
- Avaya Cloud Office
Marketing campaigns
- 2014Avaya Stadium naming-rights partnership
United States · San Jose, California
Avaya entered a naming-rights agreement connected with the San Jose Earthquakes' new stadium. The arrangement gave the company a prominent consumer-facing sponsorship platform in addition to its enterprise technology activities.
Outcome. The venue later dropped the Avaya name during the company's financial restructuring and was subsequently renamed PayPal Park.
Brand decisions
- 2023Complete second financial restructuringStrategy
Avaya faced financial pressure and entered Chapter 11 proceedings with a restructuring plan agreed with creditors.
What changed. The company filed for Chapter 11, its NYSE shares were delisted, and it completed the restructuring in May as Avaya LLC.
Aftermath. Avaya emerged as a privately held company owned by former creditors and continued its enterprise communications operations.
- 2019Launch Avaya Cloud Office with RingCentralProduct launch
Enterprise communications customers were increasingly moving from premises-based systems toward cloud and subscription delivery.
What changed. Avaya and RingCentral created Avaya Cloud Office, with RingCentral serving as the exclusive provider of the unified communications as a service offering.
Aftermath. The partnership gave Avaya a cloud-oriented offering intended to support the migration of its enterprise customer base.
RingCentral contribution. $500 million (2019 partnership announcement)
- 2009Acquire Nortel enterprise communications assetsM&A
Nortel's enterprise voice, data, and government-related assets were being sold through bankruptcy proceedings.
What changed. Avaya submitted the winning bid and acquired the relevant assets.
Aftermath. The transaction expanded Avaya's enterprise and public-sector technology portfolio and customer base.
- 2007Accept acquisition by Sierra HoldingsM&A
Avaya was operating as a publicly traded enterprise communications company before the transaction.
What changed. Sierra Holdings, owned by TPG Capital and Silver Lake Partners, acquired Avaya and took it private.
Aftermath. Avaya remained private until its return to public trading in 2017.
Reported acquisition value. $8.2 billion (October 2007)
- 2000Separate enterprise communications from LucentStrategy
Lucent Technologies was reorganizing its business and separating enterprise communications activities from the parent company.
What changed. The enterprise communications business was spun off as Avaya.
Aftermath. Avaya operated as an independent enterprise communications company and developed a standalone portfolio of telephony, unified communications, and contact-center products.
Recent events
- 2023Avaya files for Chapter 11 for a second time
Avaya entered another court-supervised restructuring with a plan agreed in advance with creditors. Its NYSE-listed shares were subsequently delisted, and the company completed the restructuring in May.
Bankruptcy - 2023Avaya emerges from restructuring as a private company
Avaya Holdings Corp. completed its financial restructuring and emerged under creditor ownership as the private company Avaya LLC.
BankruptcyLeadership change - 2019Avaya announces strategic partnership with RingCentral
Avaya and RingCentral announced a partnership to introduce Avaya Cloud Office, with RingCentral contributing funding and serving as the exclusive provider of the new unified communications service.
M&AProduct launch - 2017Avaya files for Chapter 11 protection
Avaya and related affiliates sought protection from creditors while pursuing a restructuring plan. The plan took effect after court approval in November 2017.
Bankruptcy - 2017Avaya returns to public trading after restructuring
Trading in Avaya Holdings Corp. shares began on the New York Stock Exchange under the symbol AVYA in December 2017.
Other - 2009Avaya completes acquisition of Nortel enterprise assets
Avaya was selected as the winning bidder for major Nortel enterprise voice, data, and government-related assets during Nortel's bankruptcy proceedings.
M&A
Sources
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