Chat to me if you need any help or have any questions
CSS Menu

Avaya Definity Business Telehone System

Avaya Definity business telephone system for SME and Mid-Market companies.

West Pier is a Partner in Customer Excellence - one of only two in UK. We provide award winning business telephone systems, phone maintenance, networking solutions and consulting services.

Upgrade your Legacy Avaya Definity Telephone System


Don't want to change your telephone system?

No problem. West Pier Telecom has well over twenty years maintaining Avaya Definity business telephone systems, with experts all over the country. Please contact us today for a competitive maintenance quote. We are also one of only two Avaya partners in the whole UK to hold the Avaya Partner in Customer Service Excellence award for outstanding pre and importantly post-sales customer service.


Your Avaya Definity Upgrade path to the award-winning Avaya IP Office or Avaya Aura Communication manager.

Why Migrate?

In 2007 Avaya announced the end of life notice for the Avaya Definity telephone system meaning that future upgrades and ongoing maintenance and support has become increasingly difficult, expensive and in some instances not possible.

Avaya Definity is still a stable and reliable platform and you may feel that your Avaya Definity system meets all your communication needs. However, since 2007 your business will be impacted by three issues:

1) Hardware failure that cannot be resolved.
2) Inability to add Definity software licenses.
3) Incompatibility with supported Microsoft operating systems.


Issue Impact on your business
Hardware failure that cannot be resolved As Avaya Definity phone systems have been out of production for a number of years, access to spare parts is increasingly difficult as they need to be sourced from 2nd hand models that have been decommissioned.
IP Incompatibility Avaya Definity phones are not IP enabled. This means that any business that are still using this phone system will not be able to take advantage of the benefits IP telephony including easier management and scalability.
SIP Incompatibility. SIP lines are the modern alternative to the traditional ISDN lines. The cut line rental costs in half and reduce call costs by up to 80%. ISDN is being discontinued in 2020.
Scalability/licensing If your business is looking to add phone extensions to your network you will find it difficult, expensive and in some cases impossible as the licences needed are no longer available.
Voicemail, no longer supported, Audit. embedded Audix, difficult to find. Voice mail to email and advanced auto attendant is not available.
Adoption of Unified Communications Ability for a business to adopt unified communications that enables better customer service, productivity and lower costs is impacted as the Avaya Definity is no longer developed.
Operating System Avaya Definity is not compatible with Windows 7 or later editions. This leaves your business vulnerable to security threats and technical issues as the communication network has to run on an OS which is no longer supported by Microsoft. In 2014 Microsoft ended its support of Windows XP and Windows Server 2003. This means that they will no longer be producing new security updates, non-security hotfixes, free or paid assisted support options or online technical content updates for users of Windows XP. This also means that security updates will no longer be produced for Windows Server 2003.


What is the Impact of Avaya Definity Software License Unavailability?

While your Avaya Definity telephone system may operate adequately, without a hardware fault, long after 2007, the ability to add software licenses to the Avaya Definity telephone system will no longer be available. As a consequence, your business will not be able to:
  • Scale the size of the business by adding more phones to the Avaya Definity phone system
  • Increase the number of voicemail ports to increase capacity
  • Add more call centre agents to meet customer demand

Migrating to the latest Avaya solutions ensures that your business does not suffer as a result of hardware failure and ensures it can scale capacity in line with growth and implement the applications to drive competitiveness.


Migrate To Avaya IP Office - Up to 3000 Employees

Whether you have 5 or 3000 employees spread across a single site or up to 150 locations, the award-winning Avaya IP Office communication solution is perfect for you. This solution brings your telephony, messaging, conferencing, contact centre, video communications on to a single easy to use platform that enables your workforce to work from any location or on the move across a range of mobile devices.

We are currently running a trade-in offer for customers looking to upgrade to the Avaya IP Office telephone system.

Learn more about the Avaya IP Office.


All the areas we cover for Avaya IP Office 500 phone system >>





If you would like to discuss the Avaya Definity business phone system or have any questions please call us on 0344 264 5522 or please email us.





Business telephone systems, phone maintenance and networking solutions

West Pier Telecom is the UK's only Avaya partner to have had their customer service officially recognised by Avaya 4 years running. We provide award winning business telephone systems, networking and communication solutions, support and consultancy services.











Business telephone systems, phone maintenance and networking solutions

Unify all your communications. Access on any device.











Award winning business telephone systems, phone maintenance, networking solutions and consultancy services

Save up to 80% on call costs by moving your lines over to SIP.










Video conferencing solutions, award winning business telephone systems, phone maintenance, networking solutions and consultancy services

When a telephone system goes down it can cost thousands of pounds in just a few hours. Ensure business continuity with 24 hour West Pier support for your communications.











Award winning business telephone systems, phone maintenance, networking solutions and consultancy services

West Pier provides touch screen telephone systems with access to web-based applications, menus, calendars, directories, high-quality voice calls, instant messaging, voice messaging, conference calling and more.



West Pier is fully accredited with ISO 9001:2015

West Pier is fully accredited with ISO 9001

Certificate No 10570