Important Dates Announced by Mitel 

August 30th, 2023

Mitel, a leading provider of unified communications solutions, has played an active role in the past 2 decades of consolidating the telecom equipment industry with acquisitions including InterTel (2007), ShoreTel (2017), Aastra (2014), etc. With the recent announcement that the organization has entered exclusive negotiations to acquire Atos (formerly Siemens unified communications), Mitel continues its commitment to leading industry consolidation.

In an effort to streamline the portfolio and focus research and development initiatives, Mitel has announced important dates related to their support for the MiVoice Office 250 platform (formerly InterTel 5000) and MiVoice Connect platform (formerly ShoreTel).

Important Dates for the MiVoice Office 250 platform:

End of Software Design (MiVoice Office 250):                                                     January 31, 2023

End of Software Design (Application Suite):                                                       January 31, 2024

End of Technical support for MiVoice office 250 (End of Life):                         June 30, 2026

End of Technical support for Application Suite (End of Life):                           June 30, 2027

Important Dates for the MiVoice Connect platform:

End of new system sales:                                                                                         July 6, 2024

End of Software design (anticipated):                                                                   December 31, 2028

End of Technical support (End of Life):                                                                 December 31, 2029


Message from Michael Gabhart, VP Sales, Unified Technologies

My expectation is that our account management team has proactively notified most, if not all, of our customers about these impending dates. The good news is that there is still time on both platforms to evaluate options moving forward for your business, albeit a little more urgency around the Office 250 customers with an announced end-of-life date a little under 3 years away. Our Mitel Connect customers have a little over 6 years until the announced end-of-life.

Our goal is to proactively engage in a lifecycle management conversation related to these technology solutions. There are a number of options available to our Mitel customers, all of which we are excited to help you evaluate, compare/contrast, negotiate, etc. Those options include, but are not limited to the following:

    1. Unified Communications as a service (UCaaS)- there are many, many providers in this space and we have access to all of them. We can help match you up with the supplier that best fits your business needs.


    2. Mitel platform migration options; several deployment options including inside your data center infrastructure on-prem, in your cloud infrastructure or inside our cloud infrastructure as a single instance cloud solution. Mitel has provided very aggressive promotions for existing customers to assist with this migration effort.


    3. Continued UnifiedCare support options- maximize your existing platform lifecycle, while planning for a future migration.


    4. Microsoft Teams Voice enablement options- for those clients that already utilize Teams as their primary application for communication, we can help you evaluate options for integrating voice inside the Teams client.


    5. ZoomVoice enablement- for those clients that utilize Zoom, we can drive voice interactions into that same client experience.

This conversation usually begins with understanding your larger business cloud strategy both current and future state; VMWare/HyperV/Nutanix, Azure/AWS/GCP, Co-Location, etc. Typically, our goal would be to mirror your unified communications solution design with your overall business cloud strategy. Other important variables in this migration conversation could include: 

  • Desktop collaboration application (ie. Teams, Zoom, Google, etc.)
  • Interest in moving to softphone or mobile applications; eliminating the traditional desk phone for all or part of your user base
  • Application integration; Outlook, Dynamics, Salesforce, NetSuite, Jack Henry, etc.
  • Contact/Customer Service Center needs
  • Desire to repurpose existing assets (phones/gateways/dial-tone)

To initiate a conversation with myself or our account management team about options for your business, feel free to fill out the form below and one of our representatives will be in touch within 24 hours. 


  • This field is for validation purposes and should be left unchanged.

IT Managed Services

Take control of your IT

Learn More

Unified Communications

Voice Solutions including premise, cloud and collaboration tools

Learn More

Integrated Security Solutions

Protecting you and your business

Learn More

Carrier / Cloud

Cloud-hosted phone systems and carrier services

Learn More

Unified truck logo

A technology conversation focused on you