Migrations · 3CX
From 3CX to Thirdlane: one platform instead of a fleet.
3CX works well for a single business. But when you serve many customers, it means running a separate system for each one — a growing fleet to license, patch, back up, and upgrade. The cost and effort climb with every customer you add.
Thirdlane brings all of those customers onto one platform you control — with your brand on the apps, better economics per customer, and room to grow. Here’s what moving looks like, in plain terms.
Bottom line
Migrating from 3CX to Thirdlane consolidates a fleet of separate 3CX systems onto one multi-tenant platform, in three phases — map, run side by side, then cut each customer over on a schedule you control. Extensions, numbers, auto-attendants, queues, and voicemail come across, and end users keep dialing as they always have.
- One platform to run instead of a separate 3CX system per customer.
- Per-customer cutover on your schedule, with no end-user downtime.
- Numbers, IVRs, ring groups, queues, greetings, and voicemail migrate across.
- White-label apps under your brand; you keep ownership of device provisioning.
Why MSPs make the move
Lower cost to run
Stop maintaining a separate system for every customer. One platform to run, secure, back up, and upgrade — instead of a growing fleet your team has to babysit one by one.
Better margins
Per-tenant economics and more capability included in the platform, so you spend less time assembling add-ons and more time selling service. Your costs stop rising in lockstep with your customer count.
Room to grow
Add new customers, and support multi-location businesses, without standing up and linking yet another system. The platform grows with you instead of multiplying your workload.
Your customers stay yours
White-label apps under your own brand, and you keep control of your customers’ phones and provisioning — they’re always yours to manage or move, never held by the platform vendor.
More in the box
Contact center, CRM, messaging, and AI call intelligence are part of the platform — not separate products to license, integrate, and support.
No disruption to end users
Phones keep working through the switch and people keep dialing the way they always have. The move happens behind the scenes, not on your customers’ desks.
Everything comes across
A move is only worth doing if nothing important gets left behind. We bring over the things your customers rely on every day:
- Your people and their phone numbers
- Auto-attendants and menus that greet and route callers
- Ring groups and call queues
- Greetings, announcements, and hold music
- Voicemail
One difference worth calling out: with Thirdlane you own your customers’ phone provisioning, so their devices are always yours to manage or move. We explain why that matters in You Bought the Phones. Do You Own Them?
How the move works
Step 1
We map your setup
We take stock of your 3CX systems and customers and produce a clear plan for each one — what moves as-is and what’s worth tidying up on the way.
Step 2
We run both side by side
Thirdlane is stood up alongside your existing 3CX systems and pre-loaded, so nothing is a leap of faith. Your current setup keeps running the whole time.
Step 3
We switch each customer over
Cutover happens one customer at a time, on a schedule you control, with no downtime — and we keep the old system available until everyone is settled.
Migrating from 3CX — frequently asked questions
How do I migrate from 3CX to Thirdlane?
Thirdlane consolidates your 3CX systems onto one multi-tenant platform in three phases: we map each 3CX system and customer, stand Thirdlane up alongside your existing installs and pre-load it, then cut each customer over on a schedule you control with no downtime. Extensions, numbers, auto-attendants, ring groups, queues, greetings, and voicemail come across.
Will migrating from 3CX disrupt my customers?
No. Phones keep working through the switch and users keep dialing the way they always have. Cutover happens per customer, and the old 3CX system stays available until everyone is settled.
What carries over from 3CX?
Your people and their phone numbers, auto-attendants and menus, ring groups and call queues, greetings, announcements and hold music, and voicemail. With Thirdlane you also own your device provisioning, so phones stay yours to manage or move.
Why move a fleet of 3CX systems to Thirdlane?
Instead of running a separate 3CX system per customer, you run one platform to secure, back up, and upgrade — with per-tenant economics, white-label apps under your brand, and contact center, CRM, messaging, and AI included rather than licensed separately.
Tell us what you’re running
Let us know how many 3CX systems and customers you manage, and we’ll come back with a consolidation plan and what it means for your costs and margins.
3CX is a trademark of its respective owner. Mentions are for compatibility and migration context only.