Mitel VoIP Phone System | Review for UK Businesses

Mitel: Business Communications Background

Mitel has been a significant player in business communications for several decades. The company built its reputation on reliable on-premise PBX hardware — the MiVoice portfolio — that served mid-market and enterprise customers globally. In the cloud transition period, Mitel also developed hosted VoIP and UCaaS offerings under the MiCloud brand.

However, Mitel's corporate trajectory since 2022 has introduced uncertainty. Following a private equity acquisition and strategic restructuring, Mitel's product portfolio and go-to-market approach have changed. UK businesses considering Mitel should evaluate current product availability and support commitments carefully before committing.

Mitel's VoIP Product Range

MiVoice (On-Premise PBX)

Mitel's MiVoice portfolio covers on-premise and virtualised PBX systems for mid-market and enterprise customers. MiVoice Business runs on dedicated hardware or as a virtual appliance. MiVoice Office 400 targets SMEs. These systems are feature-rich and well-proven for organisations that prefer on-premise infrastructure control.

MiCloud Connect

Mitel's hosted UCaaS platform. MiCloud Connect provides hosted telephony, team messaging, and video conferencing. It targets mid-market businesses wanting a full unified communications platform. Feature depth is competitive, though the platform has seen less active development since Mitel's strategic changes.

MiCollab

Mitel's collaboration platform, providing chat, video, and integration with Mitel's telephony products. Available both on-premise and as a cloud service.

Mitel Pricing

Mitel pricing is typically not published openly — it is delivered through a reseller network and varies by product, user count, and contract terms. Indicative pricing for MiCloud Connect (hosted) is approximately £18–£28 per user per month depending on plan tier and user count. This is at the higher end of the UK market for equivalent functionality.

Mitel: Strengths and Considerations

Strengths

• Proven, mature telephony platform with a long track record in the enterprise market
• Strong feature depth for mid-market requirements
• Good contact centre integration via MiContact Centre
• Support for hybrid deployments (part on-premise, part cloud)

Considerations

• Corporate restructuring since 2022 has introduced product portfolio uncertainty
• Higher pricing compared to equivalent alternatives (3CX, Gamma Horizon, RingCentral)
• Mitel's pace of feature development has slowed compared to newer UCaaS platforms
• For SMEs, the feature set may exceed requirements, making it poor value versus simpler alternatives
• Available UK reseller base has contracted; verify current reseller support availability in your area

Should UK Businesses Consider Mitel?

Mitel makes sense for organisations with existing Mitel on-premise PBX hardware that want to extend its life, or mid-market businesses with specific integration requirements that the MiCloud platform addresses particularly well. For SMEs starting fresh with no Mitel legacy, alternatives such as Gamma Horizon, 3CX, and Microsoft Teams Phone typically deliver equivalent or superior functionality at lower cost with more active product development roadmaps.

Any business considering Mitel should request clear clarity on: product roadmap commitments, support structure in the UK, and contract exit provisions given the company's evolving strategic position.

Alternatives to Mitel

UK businesses evaluating Mitel alongside alternatives should consider:

• Gamma Horizon: Strong UK carrier-grade hosted PBX at £12–£18/user/month. More actively managed product development.
• 3CX: Software PBX with equivalent mid-market features from £8–£14/user/month. Strong active development community.
• RingCentral: Full UCaaS at £15–£25/user/month. Larger integration library and faster feature pace.
• Microsoft Teams Phone: Native Microsoft 365 integration at £11–£21/user/month. Best for M365-heavy organisations.