Switch from a Legacy PBX
Replacing your old PBX with 3CX
Whether it's a NEC, Panasonic, Nortel, Toshiba, or an old key system in the closet, a legacy PBX is a liability: parts are hard to find, few technicians know it, and it can't support remote work. 3CX is a modern replacement that MIS installs, migrates, and supports.
- 3CX Gold Partner
- 20+ years in business IT
- Real people, fast answers
- Offices in Cincinnati & Indianapolis
Why businesses move
Common frustrations with a Legacy PBX
Hard-to-find parts
When a card or power supply fails, you're searching eBay and hoping.
One person knows it
The technician who set it up retired, and nobody wants to touch the programming.
No remote work
Staff working from home can't take calls from their extension.
Side by side
Legacy PBX vs. 3CX with MIS
| Legacy PBX | 3CX + MIS | |
|---|---|---|
| Where your system runs | A box in the closet | Your choice: 3CX-hosted, your own cloud (Azure, AWS, Google Cloud), or on-prem |
| Phones | Proprietary digital handsets | Open-standard SIP phones, headsets, and softphones |
| Remote and mobile users | Not supported or very limited | Built in with the 3CX apps |
| Voicemail and email | Basic or none | Voicemail to email, transcription where supported, and Microsoft 365 integration |
| Who you call for help | Hard to find | MIS engineers who know your setup. Real people, no ticket black hole |
Comparison reflects general platform characteristics. Specific features and terms vary by plan and edition; MIS will confirm details for your situation.
The migration
How MIS moves you over
- We document your existing programming before anything changes.
- Analog lines can be replaced with SIP trunks, often lowering your monthly carrier bill.
- Fax, door phones, and paging can be kept with analog gateways.
FAQ
Switching questions
Do we need new cabling?
Usually not. 3CX phones run over your existing network. If you have older phone-only wiring, we'll assess it during discovery.
What happens to our analog lines?
Most businesses move to SIP trunks for lower cost and more flexibility. We can keep a few analog lines for fax or alarms if needed.
Ready to leave Legacy PBX behind?
Get an itemized 3CX quote and a migration plan timed around your current contract.
Prefer to talk now? Call (513) 793-6222