Migrations
Migrating off a carrier-grade incumbent.
BroadWorks reached end of sale. Metaswitch is consolidating inside Microsoft. The carrier-grade UCaaS market is in motion, and operators with thousands of seats hosted on those platforms need a modern multi-tenant home — not a per-customer-instance product, not a single-tenant PBX, not a SaaS that competes with them for the end customer.
Thirdlane is a true multi-tenant platform built for the channel. These pages cover what migration actually looks like — what maps cleanly, what doesn’t, and how we sequence cutover for an operator with a live tenant base.
When to start planning
If three or more of these are true, you’re past the point where waiting is the cheap option. The cheaper move is to put a plan on a slide before the next renewal cycle locks you in.
- You’re operating a fleet of single-tenant PBX installs (one per customer) and ops cost is rising faster than revenue.
- Your platform vendor’s end-of-sale or roadmap schedule is forcing the conversation, not your strategy.
- Your platform vendor competes with you for end-customer revenue, or has signaled they will.
- You’re stitching UC, contact center, recording, AI, CRM, and messaging together from separate procurements.
- Your reseller channel is asking about your migration plan and you don’t have a public answer.
- The last major version of your platform forced license re-purchase or material restructuring — and the next one will too.
- Per-seat licensing is squeezing margin on the enterprise tenants you most want to keep.
- You can’t credibly serve a multi-site enterprise customer without spinning up a PBX per site.
From BroadWorks
End-of-life consolidation, with the operator workflows your team already knows.
For service providers planning their post-Cisco-EoL move. Thirdlane preserves the multi-tenant, channel-friendly economics of a BroadWorks footprint without inheriting the licensing model or the carrier-grade procurement floor.
Read the playbook →From Metaswitch
A modern multi-tenant platform for the post-Microsoft-acquisition reality.
For operators who built UCaaS on Metaswitch and need a path forward as the product roadmap consolidates inside Microsoft. True multi-tenant, MSP-friendly licensing, and modern admin tooling — without abandoning the multi-tenant operating model.
Read the playbook →Coming from another platform?
We also work with operators migrating from FreePBX/FusionPBX consolidations, custom Asterisk builds, Kazoo deployments, and a long tail of older proprietary systems. The pattern is the same: true multi-tenancy on one platform, white-label apps under your brand, and a per-tenant cutover that doesn’t disrupt end customers.
- FreePBX / FusionPBX shops consolidating fleets of single-tenant installs onto one multi-tenant platform.
- Asterisk-based custom builds where the operator wants the platform but not the maintenance burden.
- Kazoo deployments looking for a more conventional admin and a deeper out-of-the-box feature set.
If you’re comparing platforms before committing to a migration, the comparison hub covers Thirdlane vs 3CX, Yeastar, Bicom Systems, and NetSapiens.