List of Avaya VoIP Customers
Avaya
350 Mt. Kemble Avenue,
Morristown, 7960, NJ,
United States
Morristown, 7960, NJ,
United States
1 973-605-1802
Professional Services
8000
$2.5B
Since 2010, our global team of researchers has been studying Avaya VoIP customers around the world, aggregating massive amounts of data points that form the basis of our forecast assumptions and perhaps the rise and fall of certain vendors and their products on a quarterly basis.
Each quarter our research team identifies companies that have purchased Avaya VoIP for PBX, VoiP and Phone Systems from public (Press Releases, Customer References, Testimonials, Case Studies and Success Stories) and proprietary sources, including the customer size, industry, location, implementation status, partner involvement, LOB Key Stakeholders and related IT decision-makers contact details.
Companies using Avaya VoIP for PBX, VoiP and Phone Systems include: Shell, a United Kingdom based Oil, Gas and Chemicals organisation with 96000 employees and revenues of $284.31 billion, Tesco, a United Kingdom based Retail organisation with 340000 employees and revenues of $93.25 billion, SNCF, a France based Transportation organisation with 276000 employees and revenues of $45.59 billion, Barclays, a United Kingdom based Banking and Financial Services organisation with 93000 employees and revenues of $34.86 billion, Legal & General Group, a United Kingdom based Banking and Financial Services organisation with 10799 employees and revenues of $28.30 billion and many others.
Contact us if you need a completed and verified list of companies using Avaya VoIP, including the breakdown by industry (21 Verticals), Geography (Region, Country, State, City), Company Size (Revenue, Employees, Asset) and related IT Decision Makers, Key Stakeholders, business and technology executives responsible for the software purchases.
The Avaya VoIP customer wins are being incorporated in our Enterprise Applications Buyer Insight and Technographics Customer Database which has over 100 data fields that detail company usage of software systems and their digital transformation initiatives. Apps Run The World wants to become your No. 1 technographic data source!
Apply Filters For Customers
| Logo | Customer | Industry | Empl. | Revenue | Country | Vendor | Application | Category | When | SI | Insight |
|---|---|---|---|---|---|---|---|---|---|---|---|
 |
Acromas Insurance Company | Insurance | 100 | $10M | United Kingdom | Avaya | Avaya VoIP | PBX, VoiP and Phone Systems | 2015 | n/a |
In 2015, Acromas Insurance Company implemented Avaya VoIP as its enterprise telephony platform, adopting a PBX, VoiP and Phone Systems solution to consolidate voice services across its UK operations. The deployment centered on a centralized Avaya IP-PBX core, provisioned with IP handsets and a single management plane for call control, administrative provisioning, and firmware management, with planned cutover windows to limit business disruption.
The Avaya VoIP implementation included standard PBX and VoIP functional modules such as inbound and outbound call routing, auto-attendant, hunt groups, voicemail, conferencing, and operator console capabilities, along with centralized administration for user provisioning and call policy configuration. The implementation also incorporated session management and quality of service configurations typical for PBX, VoiP and Phone Systems to maintain voice quality across the corporate LAN and WAN.
Operational scope covered corporate telephony for customer service, claims handling, and back-office teams in the United Kingdom, with IT and telecoms owning ongoing administration and monitoring. Rollout governance emphasized phased cutover and scheduled maintenance windows, operator and helpdesk training, and formalized change controls for phone number management and dial plan updates, aligning telephony workflows with existing business processes.
|
 |
Admiral Group | Insurance | 13000 | $5.1B | United Kingdom | Avaya | Avaya VoIP | PBX, VoiP and Phone Systems | 2015 | n/a |
In 2015, Admiral Group implemented Avaya VoIP in a program to deliver a fully redundant telephony architecture classified under PBX, VoiP and Phone Systems. The deployment targeted Admiral Insurance sites in Cardiff and Swansea and centered on Avaya 1000e hardware and Avaya AACC6 Contact Centre software.
The implementation configured core PBX and VoIP capabilities including call routing, automatic call distribution, and contact centre orchestration through the Avaya AACC6 Contact Centre, with Avaya 1000e platform redundancy for high availability. Avaya VoIP was provisioned to support contact centre workflows, business aligned routing, and operational telephony resilience, following requirements collected in departmental redesign workshops.
Operational coverage combined project delivery and business as usual managed service responsibilities, with a dedicated managed service consultant embedded on site to support projects and BAU activities. A six month secondment into Admiral's voice migration project team provided direct consultancy to reconfigure contact centre design and align telephony configurations to optimal business requirements.
Governance was run through a cross functional voice migration project team coordinating configuration, testing, cutover and BAU handover activities, supported by on site managed service consultancy. The project team won an internal Admiral award for successful completion.
|
 |
Agilisys | Professional Services | 978 | $128M | United Kingdom | Avaya | Avaya VoIP | PBX, VoiP and Phone Systems | 2014 | n/a |
In 2014 Agilisys implemented Avaya VoIP as its PBX, VoiP and Phone Systems solution. The deployment centered on Avaya IP phone administration and handset provisioning, with the desktop engineering team responsible for fault investigation and resolution across the IT infrastructure. Day to day operations tied Avaya VoIP support to Windows 7 rollouts, SCCM imaging and Active Directory account administration to align telephony provisioning with user lifecycle events.
Avaya VoIP operations were executed within an ITIL framework using tight SLA prioritisation and escalation, and the desktop team administered Avaya IP phone issues alongside HP IP phone troubleshooting. The VoIP estate was operated in conjunction with Blackberry Administration Server for mobile device provisioning, Citrix desktop support, WDS imaging, and endpoint encryption systems such as becrypt and BitLocker, with network patching and cabling managed as part of operational support. The implementation narrative reflects hands on provisioning, handset rebuilds and troubleshooting for a large asset base, including support and maintenance activities covering over 13,000 assets and 7,000 users.
|
 |
Allied Universal | Professional Services | 800000 | $22.0B | United States | Avaya | Avaya VoIP | PBX, VoiP and Phone Systems | 2018 | n/a |
In 2018, Allied Universal deployed Avaya VoIP for PBX, VoiP and Phone Systems to provide centralized telephony and unified communications for Event Services and corporate operations. The implementation covered 13 branch sites across the United States and supported an environment of more than 300 users, including approximately 60 corporate users, aligning telephony with broader IT operations.
Avaya VoIP configuration emphasized core PBX capabilities including user provisioning, voicemail setup, desk phone provisioning and server administration. Administration of the Avaya VoIP solution was integrated into existing Windows systems administration practices, with handset and mailbox provisioning coordinated with Active Directory user management and group policy driven device controls.
The Avaya VoIP deployment operated alongside Office 365 email and Exchange administration, Teamviewer 14 remote support tooling, mobile device management and Meraki wireless infrastructure, enabling remote troubleshooting and consistent device policy enforcement across sites. Telephony administration was managed within the same operational scope as DNS, DHCP, file server permissions and network hardware and software license management.
Governance for Avaya VoIP used newly implemented change management processes, standard operating procedures and a helpdesk ticketing system to manage requests and incidents, and procurement controls including purchase orders and vendor pricing negotiations to govern phone hardware and licensing. Weekly leadership meetings provided program status and ensured telephony workflows were coordinated with broader IT service management.
|
|
|
Allstate Protection Plans | Insurance | 500 | $130M | United Kingdom | Avaya | Avaya VoIP | PBX, VoiP and Phone Systems | 2014 | n/a |
In 2014 Allstate Protection Plans implemented Avaya VoIP as its PBX, VoiP and Phone Systems solution to consolidate and standardize global voice services. The deployment supported voice operations across the US, Ireland and India and was managed from a dedicated voice network operations center.
The Avaya VoIP implementation included large Avaya PBXs supporting up to 27,000 extensions, Avaya voicemail, and Call Management Systems. The IP telephony platform was built on a dual data centre model and included conversion of traditional TDM carrier traffic to SIP based VoIP routes connecting large offices and distributed call centres globally.
Functional components integrated into the Avaya VoIP environment included Avaya Interactive Voice Response to pre route calls, Avaya Session Manager and an Oracle Session Border Controller to manage SIP traffic, Compunetix audio conferencing providing 3000 global ports, and Verint recording systems for both traditional and IP voice recording with screen capture. Operational monitoring used Netcool and Prognosis to track voice quality and infrastructure availability, and ticketing workflows recorded escalations with carriers and vendors such as AT&T, Verizon, CenturyLink, Avaya and Verint.
Operational governance centered on a Voice NOC Engineer model based in Northern Ireland since February 2014, providing ongoing support for voice infrastructure across regions and owning escalation to carriers and vendors. The implementation impacted customer service and contact centre functions by centralizing voice routing, call recording, conferencing and monitoring under the PBX, VoiP and Phone Systems stack.
|
 |
|
Professional Services | 800 | $300M | Australia | Avaya | Avaya VoIP | PBX, VoiP and Phone Systems | 2015 | n/a |
|
|
|
|
Professional Services | 3948 | $1.2B | Netherlands | Avaya | Avaya VoIP | PBX, VoiP and Phone Systems | 2017 | n/a |
|
|
|
|
Banking and Financial Services | 350 | $50M | Ireland | Avaya | Avaya VoIP | PBX, VoiP and Phone Systems | 2016 | n/a |
|
|
|
|
Transportation | 434 | $468M | United Kingdom | Avaya | Avaya VoIP | PBX, VoiP and Phone Systems | 2014 | n/a |
|
|
|
|
Banking and Financial Services | 93000 | $34.9B | United Kingdom | Avaya | Avaya VoIP | PBX, VoiP and Phone Systems | 2011 | n/a |
|
Showing 1 to 10 of 89 entries
Buyer Intent: Companies Evaluating Avaya VoIP
ARTW Buyer Intent uncovers actionable customer signals, identifying software buyers actively evaluating Avaya VoIP. Gain ongoing access to real-time prospects and uncover hidden opportunities. Companies Actively Evaluating Avaya VoIP for PBX, VoiP and Phone Systems include:
- Avantage Netherlands, a Netherlands based Professional Services organization with 215 Employees
- Worrell, a Canada based Professional Services company with 10 Employees
- Rajwada Silk Mills, a India based Manufacturing organization with 15 Employees
Discover Software Buyers actively Evaluating Enterprise Applications
| Logo | Company | Industry | Employees | Revenue | Country | Evaluated |
|---|---|---|---|---|---|---|
 |
Avantage Netherlands | Professional Services | 215 | $32M | Netherlands | 2025-10-06 |
 |
Worrell | Professional Services | 10 | $1M | Canada | 2025-02-26 |
|
Rajwada Silk Mills | Manufacturing | 15 | $1M | India | 2025-02-26 |
FAQ - APPS RUN THE WORLD Avaya VoIP Coverage
Avaya VoIP is a PBX, VoiP and Phone Systems solution from Avaya.
Companies worldwide use Avaya VoIP, from small firms to large enterprises across 21+ industries.
Organizations such as Shell, Tesco, SNCF, Barclays and Legal & General Group are recorded users of
Avaya VoIP for PBX, VoiP and Phone Systems.
Companies using Avaya VoIP are most concentrated in Oil, Gas and Chemicals, Retail and Transportation, with adoption spanning over 21 industries.
Companies using Avaya VoIP are most concentrated in United Kingdom and France, with adoption tracked across 195 countries worldwide. This global distribution highlights the popularity of Avaya VoIP across Americas, EMEA, and APAC.
Companies using Avaya VoIP range from small businesses with 0-100 employees - 5.62%, to mid-sized firms with 101-1,000 employees - 24.72%, large organizations with 1,001-10,000 employees - 48.31%, and global enterprises with 10,000+ employees - 21.35%.
Customers of Avaya VoIP include firms across all revenue levels — from $0-100M, to $101M-$1B, $1B-$10B, and $10B+ global corporations.
Contact APPS RUN THE WORLD to access the full verified Avaya VoIP customer database with detailed Firmographics such as industry, geography, revenue, and employee breakdowns as well as key decision makers in charge of PBX, VoiP and Phone Systems.