Mitel MiVoice Business The Ultimate Enterprise Communications Platform
Mitel MiVoice Business is designed to meet the complex demands of large UK enterprises, healthcare trusts, and hospitality groups. Offering unmatched deployment flexibility across on-premise, private cloud, or hybrid environments, it scales effortlessly from 250 to over 65,000 users.
Uncompromised control, resilience, and enterprise-grade voice
DeploymentOn-Prem, Cloud, Hybrid
ScalabilityUp to 65,000+ users
IntegrationsPMS, CRM, MS Teams
Ideal For250+ user enterprises
Quick Facts
Mitel MiVoice Business At-A-Glance
Why Enterprises Choose Mitel MiVoice Business
While many businesses move to standard public cloud VoIP, large enterprises and regulated sectors require the specific control, advanced routing, and deep customisation that only Mitel MiVoice Business can provide.
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True Flexibility
Deploy exactly how you need it
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Massive Scale
Grows to 65,000+ endpoints
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Contact Centre
World-class omnichannel routing
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High Availability
Active-standby resilient architecture
Features
MiVoice Business Core Capabilities
Mitel MiVoice Business Features — Deep Dive
Mitel delivers a complete suite of enterprise communication tools, giving IT directors total control over network architecture, security, and the end-user experience.
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Ultimate Deployment Flexibility
Unlike platforms that force you into a public cloud model, MiVoice Business adapts to your IT strategy. You can install it on physical servers in your own comms room, deploy it as virtual machines (VMware/Hyper-V) in your data centre, or run it in a private cloud environment.
Install on-premise using physical Mitel hardware controllers
Deploy virtually in your own private data centre or AWS/Azure
Build hybrid networks connecting multiple disparate global sites
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MiVoice Contact Centre (MiCC)
For enterprises managing high call volumes, MiCC provides a robust, omnichannel customer experience platform. It intelligently routes voice, email, web chat, and SMS interactions to the right agents based on their specific skill sets, driving first-contact resolution.
Advanced skills-based routing across voice, email, and web chat
Real-time wallboards and deep historical reporting analytics
CRM screen-popping and automated IVR self-service options
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Unmatched High Availability & Resilience
Downtime is not an option for hospitals, large hotels, or enterprise contact centres. MiVoice Business supports a highly resilient architecture, including active-standby clustering and survivable branch appliances, ensuring calls keep routing even if a primary network link fails.
Active-standby server clustering for seamless failover
Survivable branch routing for remote offices if WAN drops
Continuous voice service critical for emergency and healthcare sectors
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Industry-Specific Integrations
Mitel excels where standard VoIP fails: integrating with specialist legacy and industry software. It offers certified, deep integrations with hospitality Property Management Systems (PMS) like Oracle Opera, as well as complex healthcare paging and alarm systems.
Native integration with Oracle Opera and leading hotel PMS platforms
Connects to healthcare nurse call and emergency paging systems
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Microsoft Teams Coexistence
If your back-office staff use Microsoft Teams but your frontline workers need robust Mitel handsets or contact centre features, MiVoice Business bridges the gap. Through Direct Routing or the Mitel Assistant app, users can make enterprise-grade calls directly from the Teams interface.
Direct Routing connects Mitel's SIP trunks to your Teams tenant
Mitel Assistant allows call control directly inside Microsoft Teams
Mix and match Teams users with traditional Mitel power users
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Unified Communications via MiCollab
Mitel MiCollab provides a single application for voice, video, messaging, and presence. Available on desktop, iOS, and Android, it ensures your mobile workforce stays connected to the enterprise network, presenting their office number wherever they are working.
Comprehensive softphone and mobile application for remote work
Corporate directory access, instant messaging, and presence
Secure remote access without requiring complex third-party VPNs
Deployment
How Mitel Is Deployed
Mitel MiVoice Business Deployment Architectures
The greatest strength of MiVoice Business is architectural freedom. T2K VoIP's engineers will design a topology that matches your strict security, compliance, and infrastructure requirements.
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On-Premise (Hardware)
The system is installed on dedicated Mitel physical controllers or your own virtualised servers within your building. Maximum control, ideal for environments with strict data sovereignty rules or extensive legacy analogue cabling.
Maximum Control
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Private Cloud
Deployed as a virtual instance in a secure, private data centre (yours or ours). You gain the benefits of cloud flexibility while maintaining a dedicated, single-tenant environment that isn't shared with other businesses.
Highly Scalable
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Hybrid Architecture
Combine the best of both worlds. Run a private cloud core for your main offices, while deploying physical survivable gateways at remote branches or factory sites to ensure they remain operational even if the main internet connection drops.
Ultimate Resilience
Pricing
Mitel Licensing Models
Mitel MiVoice Business Custom Quotations
Mitel MiVoice Business does not operate on a standard tiered pricing model. Because every enterprise deployment is unique, pricing is highly bespoke and tailored strictly on a business-to-business basis. We build a comprehensive, transparent proposal based on your exact infrastructure choices, user needs, and preferred licensing model.
Bespoke Enterprise Solution
Tailored to your exact operational requirements
Custom Quotation
CapEx or OpEx available
Detailed technical scoping and communication audit
Choice of perpetual or subscription licensing
Tailored mix of UC, Mobility, and Contact Centre user profiles
Flexible infrastructure choices (On-premise, Cloud, or Hybrid)
Fully transparent hardware, licensing, and installation breakdown
Built for small, standard teams up to complex, omnichannel enterprise call centres.
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Optimised Cost
Pay only for the precise features, licences, and infrastructure your business needs.
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Total Control
Choose your deployment strategy—on-premise, cloud, or hybrid—matching your technical goals.
Mitel enterprise deployments require a detailed scoping exercise. Your custom quotation will transparently account for any physical servers, gateways, installation services, SIP trunks, call charges, and user licences required. T2K VoIP will provide a complete, bespoke proposal following our initial consultation.
Integrations
Mitel Integrations
Enterprise Platforms That Work with Mitel
Mitel MiVoice Business is renowned for its ability to integrate deeply with bespoke enterprise ERP, CRM, and industry-specific management systems.
TEAMS
Microsoft Teams
SFDC
Salesforce
ORCL
Oracle Opera (PMS)
D365
Microsoft Dynamics 365
SVRW
ServiceNow
ZDESK
Zendesk
VMW
VMware
HYPV
Microsoft Hyper-V
TIGR
Tiger Communications
REDT
Red Box Recording
Ideal Customer
Who Should Choose Mitel?
Is Mitel MiVoice Business Right for You?
Mitel is an enterprise-class solution. It is over-engineered for a 10-person office, but it is the gold standard for large, complex organisations with specific networking needs.
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Hospitality & Hotels
Hotels require a system that integrates natively with Property Management Systems (PMS) like Oracle Opera for room status, wake-up calls, and billing. Mitel also supports the massive volume of analogue room phones without needing to rewire the entire building to CAT6.
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Healthcare & Public Sector
Hospitals and NHS trusts rely on Mitel due to its extreme resilience. The ability to deploy survivable branch controllers ensures that even if external internet lines are cut, internal ward-to-ward calling and emergency paging systems remain fully operational.
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Large Enterprises (500+ Users)
Corporations with multiple physical sites, complex call centre requirements, and a dedicated internal IT team prefer Mitel. It allows IT directors to maintain complete control over data sovereignty, security policies, and update schedules rather than relying on a public cloud vendor.
Comparison
Mitel vs Cloud Alternatives
Mitel vs Standard Hosted VoIP
How does a robust enterprise system like Mitel MiVoice Business compare to standard public cloud platforms like Gamma Horizon or RingCentral?
Feature
Mitel MiVoice Business
Standard Hosted VoIP (e.g. Gamma Horizon)
Deployment Options
On-premise, private cloud, or hybrid
Strictly public cloud only
Network Control
Full control over routing, security, and updates
Controlled entirely by the vendor
Analogue & Legacy Support
Native support via Mitel gateways (ideal for hotels)
Requires clunky third-party ATA adapters
Contact Centre Capabilities
Deep omnichannel, skills-based enterprise routing
Basic hunt groups and simple call queuing
Resilience Architecture
Local survivability; internal calls work if internet fails
If the internet fails, all desk phones go dead
Ideal Target Audience
250–65,000+ users, complex sectors
5–250 users wanting simplicity
FAQ
Mitel Questions
Mitel MiVoice Business — Frequently Asked Questions
Important technical and deployment questions we discuss with IT directors considering Mitel.
We have hundreds of analogue phones in our building. Do we need to replace them?
No. Mitel MiVoice Business is the industry leader for environments with heavy analogue requirements, such as hospitals and hotels. Using Mitel's specialised high-density analogue gateways, we can seamlessly connect your existing analogue room phones, fax machines, and emergency lines directly into the modern IP system without expensive rewiring.
Can Mitel integrate with our Microsoft Teams environment?
Yes. There are two primary ways T2K integrates Mitel with Teams. We can use Direct Routing to connect Mitel's robust SIP trunks into the Microsoft ecosystem, or we can deploy the Mitel Assistant app within Teams, allowing your staff to use Mitel's enterprise call control while staying within the Teams interface.
Is Mitel MiVoice Business being phased out for a cloud-only model?
Absolutely not. Mitel has publicly committed to supporting and developing MiVoice Business as their flagship enterprise platform. They recognise that large enterprises, government bodies, and regulated industries require on-premise and private cloud options, and Mitel remains dedicated to serving this crucial market.
What happens to a remote site if the connection to the main data centre goes down?
This is where Mitel excels. We can deploy a Mitel survivable branch appliance at your remote sites. If the WAN link to your main data centre drops, the local appliance automatically takes over. Staff at that site can still call each other, and local SIP or ISDN lines can route emergency and external calls until the main connection is restored.
Alternatives
Other VoIP Systems
Alternative Business Phone Systems
Mitel is a powerhouse, but if your requirements are simpler or you want a purely software-based PBX, T2K offers excellent alternatives.
Enterprise deployments require expert planning. Speak to T2K VoIP's certified Mitel engineers. We have over 20 years of experience designing, installing, and supporting complex Mitel networks for UK businesses. Request a free technical scoping call today.
