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Best Business Phone Provider Alternatives to ShoreTel and MiVoice Connect in 2025


Woman in orange sweater looks thoughtful with chin on hand. Curly hair, turquoise background; mood is contemplative.

If your business is still running a ShoreTel or MiVoice Connect phone system, now is the time to start planning your next move. Mitel has announced it will officially end development and active support for these platforms on December 31, 2025, leaving businesses with unsupported systems, rising costs, and increased risk. This article will help you understand what's changing, what to look for in a new provider, and which business phone providers are best positioned to help. 


What's Changing with Mitel, ShoreTel, and MiVoice Connect?


In 2017, Mitel acquired ShoreTel and rebranded its platform as MiVoice Connect. While many businesses still refer to it as ShoreTel, the technology has continued under the Mitel brand—until now. In 2025, Mitel will: 


  • End development for MiVoice Connect 

  • Discontinue updates, security patches, and features 

  • Limit support to maintenance-only through 2029 (for select customers) 


Blue keyboard key labeled "support" stands out among white keys with symbols and letters. The scene is brightly lit, conveying a tech theme.

The result? Businesses still using ShoreTel or MiVoice Connect will be running outdated systems with reduced support, while also facing rising licensing and service costs. 


Why it's Critical to Evaluate New Business Phone Providers Now


If you delay your decision until late 2025, you may run into: 

  • Rushed migrations and downtime 

  • Limited availability of experienced support partners 

  • Pricing pressure as legacy system vendors shift priorities 


Switching to a modern VoIP-based business phone provider now gives you time to: 

  • Map out a smooth transition 

  • Preserve your call flows, extensions, and data 

  • Optimize costs and feature sets 



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What to look for in a new Business Phone Provider


Whether you're a healthcare clinic, a law firm, a regional manufacturer, or a multi-location office, here are key criteria to evaluate: 




  • U.S.-based, responsive support 

  • Experience migrating ShoreTel or Mitel systems 

  • Custom VoIP plans that fit your call volume, budget, and structure 

  • Compliance-ready features, like HIPAA or call recording 

  • Compatibility with existing hardware (where possible) 

  • Integrations with Microsoft 365, Zoho, CRMs, etc. 

  • Dedicated onboarding and training 



Best Alternatives to ShoreTel and MiVoice Connect in 2025


Below is a snapshot of the most trusted business phone providers to consider:


Comparison chart listing VoIP providers: Vistanet, RingCentral, Zoom Phone, Intermedia, 3CX. Features, best uses, and benefits are detailed.

If you're a small to mid-sized U.S. business with under 150 employees, Vistanet is one of the few providers offering truly personalized, hands-on support during your transition and beyond. 


Migration Checklist for ShoreTel and MiVoice Users


Yellow arrows and gears with light bulbs on a black background. Text reads "Explore your Options" in yellow, white, and green.

If you're planning your migration, here are the key steps: 

  1. Audit existing hardware and phone usage 

  2. Map your call flows, IVRs, and voicemail trees 

  3. Prepare extension and user directories 

  4. Plan your number porting process 

  5. Back up call data if needed 

  6. Schedule migration before Q4 2025 to avoid year-end congestion 

 

Want help with this? Vistanet offers free assessments for current Mitel and ShoreTel users. 



Start Your Migration with a Trusted Business Phone Provider


Four healthcare professionals, two in white coats and two in blue scrubs, standing against a dark panel wall, smiling with phones.

Don't wait for service outages or price hikes. If you're a U.S. business looking to move off of ShoreTel or MiVoice Connect, now is the time to find a trusted business phone provider who understands your needs. 



Ready for a phone provider who works for you?


Contact Vistanet today to schedule your VoIP audit and customized migration plan. 





Vistanet is a family-owned and operated independent end-to-end business phone provider with headquarters in Asheville, NC. Founded in 2011, Vistanet is a local, 8(a) Woman-Owned, HUB Certified, Full Service, Telecommunications provider serving businesses from 1 employee to companies with multiple locations and lines. Visit us at 240 Erwin Hills Road, Suite B, Asheville, NC 28806. Hours: By appointment. Email info@vistanet.co or call 828-645-8777.



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