What are you planning to replace MiVoice Connect with before 2029?

If your organization already relies heavily on Microsoft 365 and needs fairly standard calling, Teams Phone is a reasonable option to evaluate. Check the details before assuming it covers everything: call routing, reporting, international calling, SMS, and any existing desk-phone requirements can affect whether it fits.

Don’t pick a replacement just because it is the most familiar cloud option. Start with an inventory of what the current system actually does: extensions, paging, queues, after-hours routing, emergency calling, integrations, and physical phones. Then run a few realistic scenarios through each vendor’s demo and get migration costs in writing.

Webex Calling is worth comparing if you want a hosted system and need a more traditional business-phone setup. The right fit depends on licensing, devices, and the features you use, so have vendors demonstrate your actual call flows rather than relying on a generic feature sheet.

For a school or another organization with lots of desk phones and paging, include those needs in the requirements from day one. Some organizations also look at on-prem or self-managed options, but that shifts more responsibility for support, upgrades, and availability onto your own team.

Whatever you choose, don’t let the 2029 date turn into a last-minute emergency. Confirm the exact support and service deadlines with Mitel, map out number and device porting, and leave time for a pilot and staff training. The best product choice won’t help much if the cutover plan is rushed.