TNS Helps Carriers Navigate the Transition from PSTN to All-IP Networks, Podcast

“The networks may change dramatically behind the scenes, but calls still need to connect reliably.”

In this Technology Reseller News podcast, Connie Hartman, Director of Product Management at TNS, discusses the ongoing transition from legacy TDM and PSTN infrastructure to all-IP communications—and the routing, interconnection and reliability challenges that come with it.

TNS is a global communications technology company supporting wireless, wireline and VoIP operators across call routing, interconnection, numbering intelligence, fraud prevention and call authentication. The company analyzes roughly 1.9 billion call events every day.

Hartman says the industry cannot simply switch off the legacy network.

During the transition, TDM and IP environments will continue to coexist, requiring carriers to understand where calls should go and how they should be routed across different interconnection environments.

That makes the evolution of the LERG Routing Guide particularly important.

The industry has traditionally relied on the LERG as an authoritative source of routing information. TNS is now evolving that framework so carriers can publish and access IP routing information while continuing to support legacy routing during the migration.

“The goal is to give carriers a practical migration path rather than forcing the industry to rebuild everything from scratch,” Hartman says.

The FCC is also working with the industry on the move toward an all-IP future. Hartman says the transition must address much more than retiring old switches.

Network resilience, public safety, accessibility, numbering, robocall mitigation and operational governance all need to continue functioning throughout the transition.

TNS is supporting that migration with managed routing, voice peering, call authentication, fraud mitigation, STIR/SHAKEN, E911, N11 and 988 capabilities.

Hartman expects IP routing and interconnection to remain major industry and regulatory topics through 2027 and beyond, particularly for smaller and regional carriers that need a transition model that works without requiring a disruptive rip-and-replace approach.

Ultimately, she says, success will mean making the transition largely invisible to the customer.

Visit TNSI.com to learn more.