What Happens After Go-Live? Telecom Migration Support Explained
Post-migration support helps service providers identify and resolve issues after cutover, confirm that customer services are stable, and move the new platform into normal operations. The exact support arrangement depends on the migration and should be agreed before cutover.
Go-live is an important milestone, but the work does not always end there. Provisioning exceptions may surface, call flows can behave differently under live traffic, and end users may report issues that were not apparent during sandbox testing.
For providers migrating from Metaswitch, BroadWorks, or other legacy platforms to NetSapiens, understanding what happens after cutover is as important as preparing for it. This guide covers support ownership, exception handling, and reporting. For the technical checks to run once customers are live, see the Post-Migration Verification Playbook for NetSapiens.
Key Takeaways
Post-migration support includes the agreed activities used to verify and stabilize the new environment after customers have completed cutover.
Escalation responsibilities should be agreed before cutover, with clear roles for the provider, the migration partner, and the platform vendor.
Tracking exceptions and their resolutions helps keep unresolved issues from becoming ongoing operational problems.
Post-cutover reporting gives teams visibility into completed waves, outstanding issues, service stability, and remaining follow-up activities.
A migration should move into normal operations once agreed acceptance requirements have been met.
What Does Post-Migration Support Include?
Post-migration support is the work involved in stabilizing a new environment after customers have moved.
Some providers call the initial period of additional support hypercare. Whatever the term, the purpose is to identify problems early and make sure they reach the right people.
Depending on the environment and the agreed scope, support may include:
Service verification: Confirming that calling, routing, devices, voicemail, and important customer features such as call recording, receptionist consoles, and fax are operating as expected, including client-side checks in end-user apps such as SNAPmobile.
Exception management: Investigating provisioning gaps, endpoint provisioning issues, configuration mismatches, and unexpected feature behavior.
Technical troubleshooting: Resolving migration-related problems that require additional engineering expertise.
Escalation coordination: Making sure issues reach the appropriate team when they cannot be resolved directly.
Operational handover: Documenting outstanding migration-related issues and confirming the transition to the provider’s normal support and operations processes.
These responsibilities should be agreed before cutover. Otherwise, the provider may discover that some support activities were never included in the migration engagement.
Who Handles Problems After Cutover?
When something goes wrong after migration, the first question is often who should handle it.
A customer may report that calls are forwarding incorrectly, a device is not registering, or a feature is behaving differently from the source platform. Some problems can be resolved by the provider's normal support team. Others may require assistance from migration engineers familiar with how the source configuration was transformed for NetSapiens. Platform-level issues may need involvement from NetSapiens or another vendor.
Post-Cutover Responsibilities at a Glance
Issue Type | Example | Typical First Owner |
Routine user requests | Voicemail PIN resets, user setting changes | Provider support team |
Migration-related configuration | A call flow, hunt group, or answering rule that does not match the source; a device with the wrong configuration profile | Provider engineering, with migration-partner assistance when required |
Domain or reseller-level setup | Dial plan or routing settings affecting a customer group | Provider engineering, with migration-partner assistance when required |
Carrier and number routing | Numbers still routed to the source platform in an SBC or carrier platform | Provider, with the carrier |
Platform behavior | An issue that reproduces outside the migrated configuration | Platform vendor, coordinated by the provider |
This is an illustrative division of responsibilities. Actual ownership depends on the provider’s operating model and the agreed migration and support scope. Responsibilities should be confirmed before go-live.
Before cutover, clarify:
Who receives and investigates migration-related support requests?
Which issues remain with the provider's internal team?
When should the migration partner become involved?
How are issues escalated when additional technical support is required?
Who communicates updates to the affected customers?
What information should the provider collect before escalating an issue to the migration partner?
Customer communication after cutover also affects retention. Our guide on how to reduce churn during a telecom migration covers what customers should hear and when.
Post-cutover support should also be part of the conversation when choosing a NetSapiens migration partner, before the project begins.
How Should Post-Migration Exceptions Be Managed?
Even a well-planned migration can produce issues that need attention after cutover. A device configuration might need adjustment. A customer-specific routing rule may not behave as expected in the target environment. A feature that passed initial testing could need further investigation under normal use.
The coordination effort increases when a provider is migrating large subscriber groups with varied configurations. A practical approach to exception management involves four activities:
Identify the issue. Determine which accounts, services, or configurations are affected.
Assess the impact. Prioritize issues based on their effect on customers and business operations.
Assign responsibility. Establish who will investigate and resolve the problem.
Verify and document the outcome. Confirm that the issue has been resolved or assigned an agreed next step, and record the result.
Not every issue needs the same response. A failed inbound call requires different attention than a minor configuration difference. In multi-tenant environments, grouping exceptions by domain or reseller helps show whether an issue is isolated or part of a wider pattern. It also helps to separate migration-related exceptions from unrelated problems that happen to appear after cutover.
Strong preparation makes this work easier. The NetSapiens migration data validation checklist covers the checks that help identify configuration and data issues before customers go live.
What Should Post-Cutover Reporting Cover?
Service providers need a clear picture of what is happening after migration, especially when large customer groups or multiple environments are involved. Useful reporting helps teams assess service stability and identify what still requires attention.
It may include:
Migration status: Which customer groups have completed cutover and verification.
Outstanding issues: Open exceptions, their impact, and current status.
Resolution progress: Which problems have been addressed and which still need investigation.
Escalations: Issues requiring additional engineering or vendor support.
Next steps: Remaining work before the migration can be formally closed.
For executives, this shows whether the project is progressing toward completion. For operations teams, it gives visibility into the issues that still need attention. The reporting format and frequency should reflect the size and complexity of the migration rather than follow an arbitrary standard.
When Is Post-Migration Support Complete?
There is no universal support period that applies to every telecom migration. A smaller environment with straightforward configurations may stabilize relatively quickly. A larger migration involving multiple source platforms, custom features, and complex integrations may require additional verification and troubleshooting.
Before closing the migration, the responsible parties should review the agreed acceptance requirements, confirm issue ownership, and document any remaining follow-up activities. Depending on the project, these may include:
Services identified in the agreed acceptance criteria are operating as expected.
Migration-related issues have been resolved or documented with clear next steps.
Outstanding support responsibilities have been assigned.
The provider's operations team is prepared to manage the new environment.
Any remaining verification or follow-up activities are understood.
Once those requirements are met, the project can move into normal operations.
This also matters for legacy platform retirement. Successful customer and service verification is one of the requirements providers should consider before determining when legacy infrastructure can be retired.
How Automation Helps Reduce Post-Cutover Work
Some avoidable post-migration issues result from configuration discrepancies or manual provisioning errors. Across a large subscriber base, rebuilding user settings, devices, and call flows by hand creates considerable work and more opportunities for inconsistency.
Otto™, Vox Matic’s proprietary automated telecom migration framework, automates repeatable extraction, transformation, provisioning, and validation activities across the migration workflow. By applying automated validation checks to source and target data, Otto can identify discrepancies before cutover and reduce the likelihood that avoidable configuration issues reach customers.
The provider’s engineers manage the migration workflow and can engage Vox Matic specialists when assistance is required with exceptions, testing, complex configurations, validation issues, or cutover planning. For a side-by-side view, see manual vs. automated telecom migration.
The platform changes. The customer experience should remain consistent.
Planning a Migration? Discuss Support Before Go-Live.
When evaluating a telecom migration partner, ask what happens after cutover. Who handles migration-related issues? How are exceptions managed? What support will be available, and how will the project transition into normal operations?
Vox Matic has completed automated migrations of thousands of subscribers from Metaswitch and BroadWorks environments to NetSapiens. As a NetSapiens Ecosystem Partner, Vox Matic can help define how migration-related support, escalation, and handover could be structured for your environment.
Request a Migration Assessment
Discuss post-cutover support before customers go live. Vox Matic can help you:
Review your legacy platform, migration objectives, and proposed timeline.
Identify automation opportunities, migration risks, and post-cutover support requirements.
Request your Migration Assessment.
It's that simple!
Frequently Asked Questions
What happens after a telecom migration goes live?
After go-live, the focus moves to verifying live services, investigating migration-related issues, and helping the provider transition into normal operations. Depending on the project, this may involve additional testing, troubleshooting, escalation coordination, and post-cutover support.
What is hypercare in a telecom migration?
Hypercare is a period of additional support immediately after go-live. It may involve closer monitoring, faster issue escalation, and additional engineering attention while the new environment stabilizes. The scope and duration should be agreed before cutover.
How long does post-migration support last?
There is no standard duration. Support requirements depend on subscriber volume, configuration complexity, outstanding issues, and the agreed project scope. The move to normal operations should be based on defined acceptance requirements rather than an arbitrary timeframe.
Who is responsible for resolving issues after cutover?
Responsibility depends on the issue and the support agreement. The service provider typically manages routine support and initial investigation. The migration partner may assist when an issue is connected to migrated data, transformation rules, provisioning, or other work within the agreed migration scope. Platform vendors may also be involved when additional support is required. Clear ownership should be established before go-live.
Can automation reduce post-migration support issues?
Automation can reduce repetitive manual work and improve configuration consistency during migration, which may help keep some avoidable provisioning and configuration problems from reaching customers. Testing, verification, troubleshooting, and access to experienced engineering support remain important parts of the migration process.
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