top of page

Legacy Platform Retirement

What Is Legacy Platform Retirement?

Legacy platform retirement is the process of decommissioning a voice platform after its customers have moved to a new one. Once the platform has been fully decommissioned and the associated obligations have ended, applicable licensing, hardware, support and maintenance costs can stop.

What has to happen before a platform can be retired?

  • Every customer has been migrated and verified on the destination platform

  • Numbers have been re-routed or ported, and no live traffic still reaches the legacy platform

  • Billing records and related workflows have been updated for each migrated customer

  • Historical call detail records and other required data are retained or archived

  • Legacy integrations with billing, provisioning and operational systems have been transitioned, replaced or disconnected as required

  • Contracts, licensing and support obligations have been reviewed

  • Migrated customers are removed from the legacy environment when authorized by the provider

The last steps of a migration often decide when retirement can happen. In Vox Matic's Metaswitch to NetSapiens process, the Complete step covers billing updates, removing migrated customers from the applicable Metaswitch environment when authorized by the provider, and handoff to operational teams.

Why does the timing of retirement matter?

While two platforms run in parallel, a provider may carry two sets of licensing, support, integrations and operational knowledge. The sooner the remaining customers move, the sooner applicable legacy costs can end. Reducing repetitive migration work can help shorten the transition and allow applicable legacy expenses to be retired sooner.

Retirement vs. end of life


End of life

Platform retirement

Whose decision

The vendor's

The service provider's

What it means

The vendor announces that the sale, maintenance or support of a product or release will be reduced or ended according to a defined lifecycle schedule

The provider stops running the platform for its customers

Timing

Set by the vendor's announcement

Set by the provider's migration plan

A vendor may issue end-of-sale, end-of-maintenance or end-of-support notices for individual products or releases without retiring the entire platform family. Providers should consult the vendor's current lifecycle documentation when planning a migration.

For the financial side of the decision, see the business case for retiring legacy telecom platforms and The Cost of Doing Nothing Is Rising.

Frequently asked questions

When can we turn off the legacy platform?

After the final wave has been verified, no live traffic reaches the platform, required data has been retained and contracts and support obligations have been reviewed.

Does migrating automatically reduce costs?

Not on its own. Applicable legacy costs end once the platform has been fully decommissioned and the associated obligations have ended, which is why planning retirement alongside the migration matters.

What happens to historical call records?

That depends on billing, regulatory and contractual requirements. Historical CDRs are often kept in the billing system or archived separately, and the decision should be made before the platform is retired.

Related terms

Telecom Migration Cutover

The planned point when live service moves from the legacy platform to the new one.

Call Detail Record

The record a voice platform creates for each call, used for usage billing and reporting.

Migration Discovery

The planning stage where the source environment is inventoried and mapped before anything moves.

Telecom Platform Consolidation

Moving customers from several voice platforms onto one.

Retire legacy platforms sooner

Request a Migration Assessment to review your platforms, timeline and migration objectives.

NetSapiens is a trademark of Crexendo, Inc. Metaswitch and BroadWorks are trademarks of their respective owners. Otto™ and Forge™ are trademarks of Vox Matic. Vox Matic is an independent migration services provider. References to third-party products are for identification and interoperability purposes only and do not imply endorsement, except where an authorized partnership is expressly identified.

Planning a Migration?

Vox Matic has completed automated migration of thousands of subscribers from BroadWorks and Metaswitch to NetSapiens. Save time and reduce migration costs through automation, experienced engineering, and a proven migration process.

​

Share a few details and our team will:

• Discuss your current platform, timeline, and migration objectives.

• Identify automation opportunities, risks, and the most effective migration approach.

How did you hear about us?
Google Search
AI Search (ChatGPT, Perplexity, Claude, Gemini, etc.)
LinkedIn
Referral
Event or Conference
NetSapiens
Other
Vox Matic  It's that simple!

Automated telecom migration powered by Otto.

Company

Solutions

Legal/Contact

3379 Peachtree Rd NE

Suite 700
Atlanta, GA 30326

Phone:

470-284-6303

© 2025 by Nobel Design Group LLC. 

bottom of page