Mitel Phone System Repair NYC
Mitel MiVoice Business and 3300 systems, diagnosed and fixed.
Mitel MiVoice Business (formerly 3300) and MiVoice Office 250 systems are widely deployed in NYC corporate offices. We repair Mitel controllers, gateway cards, and handsets, and support ongoing programming needs.
Models we service
- MiVoice Business / 3300
- MiVoice Office 250
- 5300-series IP handsets
Common problems
- No dial tone or unreachable extensions
- Dead or unresponsive 5300-series handsets
- Embedded voicemail (NuPoint or similar) failure
- One-way or choppy audio
- Gateway or trunk card failure
- Controller failing to boot or apply licensing
- Handsets losing registration to the call controller
What we do
Diagnostics and repair across MiVoice Business/3300 controllers and endpoints.
- Controller and gateway card diagnostics and replacement
- 5300-series IP handset repair and replacement
- Voicemail and auto-attendant troubleshooting
- Programming, extension moves/adds/changes
- Parts sourcing for legacy 3300 controllers and MiVoice Office 250
- Repair-vs-replace guidance and migration path to VoIP
Repair or replace?
MiVoice Business controllers are actively supported and generally worth repairing when a single card or gateway fails. MiVoice Office 250 hardware is aging out of manufacturer support — we assess parts availability case by case and can plan a migration to a modern SIP-based platform when repair no longer makes sense.
Frequently asked
Do you repair Mitel 3300 controllers?+
Yes. We diagnose and repair Mitel 3300/MiVoice Business controllers, including power supply and card-level failures.
Can you fix 5300-series IP phones that won't register?+
Usually. Registration failures are often network or licensing related rather than hardware failure, and we troubleshoot both.
Is MiVoice Office 250 still supported?+
It's an older platform with limited parts availability. We repair units where possible and will advise on migration when parts can't be sourced.
Do Mitel systems support SIP trunking?+
Yes, MiVoice Business supports SIP trunks, letting you modernize your carrier connection without replacing the phone system.