Mitel customers may need help with a business telephone system, MiVoice platform, MiCollab application, contact center, OpenScape product, IP phone, licensing problem, security update, hardware repair, service outage, or support contract. Mitel is primarily an enterprise communications provider, so most end customers receive assistance through the authorized partner, reseller, managed-service provider, or telecommunications company responsible for their system.
How to Contact Mitel
- U.S. and Canada sales: 1-844-937-6483
- Ottawa office: 1-613-592-2122
- Customer-support resources: Mitel Customer Support
- Mitel Help Center: Mitel Help and Support
- Partner technical support: Mitel Partner Technical Support
- Authorized-partner directory: Find a Mitel Partner
- Technical documents: Mitel Document Center
- Security advisories: Mitel Security Advisories
- Official website: Mitel.com
The previously listed 1-800-722-1301 number appears in older Mitel product documentation for specialized sales, licensing, or partner functions. Mitel’s current public website does not present it as a universal customer-service number.
How Mitel Customer Support Works
Mitel sells and supports enterprise communications products through a large network of authorized partners, resellers, service providers, distributors, and managed-service organizations.
For most existing customers, the first support contact is the organization that:
- Sold or installed the Mitel system
- Provides the telephone or cloud service
- Maintains the hardware and software
- Manages the organization’s support contract
- Controls access to Mitel portals and software downloads
The partner performs initial troubleshooting and determines whether the issue requires escalation to Mitel. Direct Mitel technical support is generally entitlement-based rather than open telephone support for every employee using a Mitel phone or application.
Mitel Partner Technical Support
Effective October 6, 2025, Mitel requires partner problem tickets to be submitted through the Mitel Web Portal. The portal verifies the submitting technician’s certification, product licensing, and support entitlement.
Employees who cannot open a Mitel ticket should contact their internal IT department, telephone administrator, help desk, or authorized provider. Opening several duplicate cases through different departments can delay troubleshooting and make ownership of the incident unclear.
Is Mitel Support Available 24/7?
Twenty-four-hour support is available under qualifying Software Assurance, managed-service, partner, and enterprise support agreements. It is not a universal service available to every customer through one public telephone number.
Actual coverage depends on:
- The product and installed version
- The customer’s active Software Assurance status
- The partner’s maintenance agreement
- The selected support tier
- The incident severity
- The country and regional support center
- Whether onsite service or spare-parts replacement is included
Organizations relying on 24/7 communications should review their contract before an outage and document the emergency number, account identifier, severity definitions, escalation path, and response objectives.
Best Mitel Support Route by Issue
- System outage: Contact the organization’s IT team and authorized Mitel provider.
- Single employee phone or app problem: Begin with the employer’s internal help desk.
- MiCollab, MiVoice, or OpenScape technical issue: Contact the maintaining partner with version and log information.
- New system or product demonstration: Call 1-844-937-6483 or submit the sales form.
- Software license or entitlement: Contact the partner that sold or renewed the licenses.
- Hardware repair: Obtain an RMA through the authorized partner or distributor.
- Security vulnerability: Review Mitel’s security advisory and contact the partner responsible for patching.
- Legacy ShoreTel product: Identify whether the system is MiVoice Connect or the RingCentral-owned MiCloud Connect service.
- Former Unify product: Use Mitel support for the corresponding OpenScape product.
- Privacy request: Use Mitel’s Data Protection Department rather than technical support.
Mitel Office and Corporate Information
Mitel Networks Corporation
4000 Innovation Drive
Ottawa, ON K2K 3K1
Canada
1-613-592-2122
The Ottawa office is currently listed as open Monday through Friday from 8:00 a.m. to 5:00 p.m. local time. Office visits are by appointment only.
The older 350 Legget Drive address appears in legacy product documentation but should not be used as Mitel’s primary current office address.
The Ottawa telephone number is an office and corporate contact. It is not a substitute for an organization’s authorized service provider, technical-support contract, or emergency outage procedure.
Mitel Ownership and Leadership
Mitel completed a financial restructuring on June 20, 2025 and emerged from Chapter 11. Ownership transitioned from Searchlight Capital Partners to Mitel’s lenders. Existing customer and partner contracts generally remained in place through the restructuring.
Mitel currently identifies Mike Robinson as CEO and director. The company provides unified communications, collaboration, contact-center, business-phone, critical-communications, device, managed-service, and hybrid-cloud solutions.
Information to Gather Before Requesting Support
- The Mitel product and complete version
- The communications platform and deployment type
- The authorized partner or provider
- The customer or site identifier
- The active support or Software Assurance status
- The time the incident began
- The number of users and sites affected
- Error messages and alarm codes
- Recent upgrades or configuration changes
- Relevant logs and diagnostic files
- Network, firewall, certificate, and integration changes
- Previous ticket or escalation numbers
- The business impact and requested resolution
Do not publish passwords, license keys, SIP credentials, IP addresses, network maps, employee call records, recordings, voicemail, customer data, or complete ticket numbers in a public review.
Reporting a Mitel System Outage
For a major outage, first determine whether the problem affects one user, one location, several sites, an external carrier, or the entire communications platform.
- Notify the organization’s internal IT or communications team.
- Check power, network, internet, carrier, and data-center status.
- Record the exact start time and affected services.
- Contact the authorized Mitel partner using the contracted emergency route.
- State the business impact and requested severity clearly.
- Retain the incident number and escalation schedule.
- Document temporary call-routing or continuity measures.
Emergency-service calling concerns should be treated separately from an ordinary application problem. Organizations should maintain tested backup methods for emergency calls and critical operations.
Mitel Sales, Quotes, and Upgrades
Businesses seeking a new Mitel system, product demonstration, hybrid-cloud strategy, contact-center platform, phone replacement, or modernization assessment can call 1-844-937-6483.
Pricing is normally developed through a Mitel representative or authorized partner and can include hardware, licenses, subscriptions, installation, integration, training, carrier services, maintenance, taxes, and professional services.
Before signing a quote, confirm:
- The legal seller and service provider
- The contract term and renewal process
- License ownership and portability
- Support hours and severity definitions
- Upgrade and security-patch entitlements
- Early termination or cancellation terms
- Hardware-return and replacement requirements
- Data export and transition assistance
Software Assurance and Licensing
Mitel Software Assurance provides eligible customers with software updates, security fixes, major releases, knowledge-base access, and vendor-level technical assistance through authorized partners.
Coverage is purchased for a defined term and product environment. If Software Assurance expires, the organization may lose access to new releases, technical escalation, CloudLink functions, or migration benefits.
Contact the selling partner before renewal to verify:
- Products and users covered
- Contract start and expiration dates
- Support tier and hours
- Upgrade rights
- Security-fix eligibility
- Reinstatement fees after expiration
Mitel Repairs, Returns, and RMAs
Mitel repair services are primarily provided through authorized partners and distributors. End customers should not ship a telephone, controller, gateway, server component, or other device directly to an office without an approved Return Material Authorization.
Mitel publishes help_globalrepair@mitel.com for global repair inquiries, but the authorized partner should generally coordinate the repair, warranty, exchange, and shipment.
Ordinary purchase returns, project cancellations, incorrect orders, restocking charges, and refunds are governed by the seller’s contract. A partner return is different from a manufacturer repair or warranty exchange.
Gray-Market and Used Mitel Equipment
Mitel warns buyers about products and services purchased outside its authorized partner network. Used or marketplace equipment may have expired support, unsupported software, unavailable licenses, altered firmware, missing power supplies, or no valid warranty.
Before purchasing used Mitel equipment, confirm:
- Compatibility with the existing system
- Whether licenses can be legally transferred
- Whether the model is still supported
- Whether security updates remain available
- Whether an authorized partner will install or maintain it
Mitel Security Advisories
Mitel publishes advisories for moderate, high, and critical product-security issues. Each notice identifies affected products, versions, available fixes, mitigations, and the recommended action.
Administrators should:
- Subscribe to Mitel security notifications.
- Inventory all Mitel and former Unify systems.
- Compare installed versions with current advisories.
- Contact the authorized partner for restricted patches or knowledge-base instructions.
- Test and apply fixes according to the organization’s change-control process.
- Confirm that internet-facing services are appropriately restricted.
Products that have reached End of Support may not be included in current vulnerability remediation. Lifecycle status is therefore an important security consideration.
Product Lifecycle and End of Support
Mitel publishes product lifecycle information through its Document Center and partner communications. End of Sale does not always mean immediate loss of support, but it begins a transition toward reduced availability, limited updates, and eventual End of Technical Support.
Organizations should not wait for final support expiration to plan a migration. Review hardware age, licensing, carrier dependencies, integrations, security exposure, spare parts, employee training, and contract timing.
ShoreTel and MiCloud Connect Customers
Mitel acquired ShoreTel in 2017. ShoreTel Connect Onsite became MiVoice Connect, while ShoreTel Connect Cloud became MiCloud Connect.
MiCloud Connect and its customer base were acquired by RingCentral in June 2024. Customers with that service should review their invoice, account portal, and provider information to determine whether support and billing now belong with RingCentral.
MiVoice Connect remains under Mitel’s lifecycle process, with End of Technical Support scheduled for December 31, 2029.
Unify and OpenScape Support
Unify became part of Mitel in 2023. Former Unify products now use Mitel support, documentation, and product channels. These include OpenScape Business, OpenScape Voice, OpenScape 4000, OpenScape UC, OpenScape Contact Center, and related devices and services.
Customers should use the exact OpenScape product name and version when requesting support.
Privacy and Accessibility
- Privacy email: privacy_request@mitel.com
- Additional privacy email: GDPR@mitel.com
- U.S. and Canada privacy telephone: 1-888-257-8624
- Data-subject request: Mitel Privacy Request Form
- Accessibility feedback: Mitel Accessibility Feedback
- Accessibility telephone: 1-613-691-3379
When an employee uses a Mitel system supplied by an employer, school, hospital, government agency, or other organization, that organization may control the account and communications data. Product-data questions should generally begin with the organization’s administrator or privacy office.
How to Escalate a Mitel Complaint
- Identify the authorized partner, reseller, carrier, or managed-service provider.
- Open a case through that organization’s official support route.
- Document the product, version, incident time, business impact, and requested resolution.
- Request the case severity, response objective, and next update time.
- Ask the partner whether the problem has been escalated to Mitel.
- Retain logs, screenshots, invoices, contracts, and correspondence securely.
- Request partner management review if contractual support is not being delivered.
- Contact the Mitel account representative for an unresolved product-level issue.
- Use the Ottawa corporate office only after the contracted support and account routes have been attempted.
Mitel Customer Service Reviews and Complaints
CustomerServiceNumbers.com currently has no published Mitel reviews. The displayed 0 out of 5 rating reflects the absence of submitted ratings and is not a zero-star customer judgment.
Until moderated reviews are submitted, this page should not claim that customers commonly praise or complain about reliability, integrations, features, outages, technical support, partners, licensing, or customer service.
Frequently Asked Questions
What is Mitel’s current sales number?
U.S. and Canadian customers can call 1-844-937-6483.
Is 1-800-722-1301 Mitel’s general customer-service number?
No. It appears in older documentation for specialized sales, licensing, and partner functions but is not presented on Mitel’s current public contact page as universal customer support.
How do existing Mitel customers get technical support?
Contact the authorized Mitel partner, reseller, service provider, carrier, or internal IT department responsible for the system.
Does Mitel provide 24/7 support?
Qualifying Software Assurance, managed-service, and partner contracts can include 24/7 support. Coverage is not universal.
Where is Mitel’s current Ottawa office?
Mitel currently lists 4000 Innovation Drive, Ottawa, Ontario K2K 3K1.
What is Mitel’s corporate telephone number?
The Ottawa office number is 1-613-592-2122.
Who is Mitel’s CEO?
Mike Robinson is Mitel’s current CEO and director.
Who owns Mitel?
After its 2025 financial restructuring, ownership transitioned from Searchlight Capital Partners to Mitel’s lenders.
Who handles MiCloud Connect?
MiCloud Connect was acquired by RingCentral in 2024. Check the current invoice and service agreement for the correct provider.
Is Unify still separate from Mitel?
No. Unify is now part of Mitel, and OpenScape support is handled through Mitel channels.
Related Customer Service Pages
Why Trust CustomerServiceNumbers.com?
CustomerServiceNumbers.com is an independent consumer and business-support information website. It is not owned or operated by Mitel, Mitel Networks Corporation, an authorized partner, reseller, carrier, managed-service provider, RingCentral, Zoom, or an employer using Mitel products.
Share Your Experience
Describe the Mitel product, approximate incident date, partner or provider, general outage or licensing issue, support route, requested resolution, response, and outcome.
Privacy warning: Do not publish passwords, license keys, SIP credentials, IP addresses, network diagrams, call records, recordings, employee information, contracts, confidential pricing, complete ticket numbers, or security logs.
Page Update Note
This page was updated on July 28, 2026. The update removed an outdated general-support number and address, added Mitel’s current sales and Ottawa office contacts, explained partner-led and contract-based technical support, clarified 24/7 coverage, updated ownership and leadership, and added licensing, repair, product lifecycle, MiCloud Connect, Unify, security, privacy, accessibility, and complaint-escalation guidance. Unsupported review themes were removed.
Customer Service Information Disclaimer
CustomerServiceNumbers.com is not affiliated with Mitel, Mitel Networks Corporation, an authorized Mitel partner, reseller, carrier, managed-service provider, RingCentral, Zoom, or an employer operating a Mitel system. It cannot access business systems, restore telephone service, change licenses, open entitled support cases, issue RMAs, provide security patches, cancel contracts, issue refunds, or act on behalf of Mitel.