Platform Transformation
Moving from legacy systems to modern infrastructure that reduces cost, improves reliability, and supports future growth.
Overview
Organizations running legacy PBX systems and TDM circuits face increasing operational burden. Hardware maintenance costs rise as equipment ages. Vendor support contracts become expensive or unavailable entirely. Finding engineers with expertise in older platforms grows more difficult each year.
Meanwhile, these systems lack the flexibility modern operations demand—remote work support, cloud integration, mobility, and the analytics capabilities that newer platforms provide out of the box.
40%+
Typical reduction in telecom costs after migrating from PRI/TDM to SIP trunking
70%
Of enterprises will have retired legacy TDM infrastructure by 2027
3-5x
Higher maintenance cost for end-of-life PBX systems compared to modern platforms
90%
Of new enterprise voice deployments are now cloud or hybrid
Migration projects often get postponed because legacy systems still work. The phone rings, calls connect, and the urgency to change feels low. But this creates compounding risk:
The organizations that plan migrations proactively have time to execute carefully. Those forced to migrate by hardware failure or carrier deadlines face compressed timelines and higher risk.
The window is closing. Major carriers are actively decommissioning TDM infrastructure. AT&T, Verizon, and Lumen have all announced PSTN sunset timelines. Organizations still running PRI and T1 circuits will need to transition regardless—the only question is whether it happens on their schedule or the carrier's.
Modern telecom infrastructure typically means some combination of SIP trunking, cloud PBX or UCaaS platforms, and session border controllers for security and interoperability. The specific architecture depends on your environment:
Our platform or yours. intSignal offers our own UCaaS and PBX solutions—fully managed, deployed on-premises or cloud, with complete support. If you prefer Microsoft Teams, Zoom Phone, Webex, RingCentral, or another platform, we implement and support those as well. We're not tied to a single vendor—we recommend and deploy what fits your requirements.
Document existing infrastructure, call flows, integrations, and dependencies. Identify risks and define success criteria for the migration.
Design target state based on business requirements. Select platforms, plan network changes, and define integration approach.
Build new infrastructure alongside existing systems. Test thoroughly before any production traffic moves.
Migrate users and locations in stages. Each phase validates before the next begins. Rollback procedures ready throughout.
Once migration is complete and stable, legacy systems are retired. Documentation updated, contracts terminated, hardware disposed.
Most engagements fall into a few categories:
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Explore Wireless Solutions →Contact us to discuss your current environment, timeline constraints, and how we can help you transition to modern infrastructure with minimal disruption.