What is POTS Replacement?

POTS Replacement is the process of substituting legacy copper telephone lines — known as POTS (Plain Old Telephone Service) — with modern cellular connectivity, typically LTE or 5G. The transition is being driven by nationwide carrier sunsets of copper infrastructure, which has made maintaining POTS lines increasingly expensive and, in many regions, no longer available as a service at all.

POTS lines have historically powered life-safety systems: elevator emergency phones, fire alarm panels, building entry systems, and emergency call boxes. These systems require always-on dialtone and are regulated by codes including NFPA 72 (fire alarm signaling) and ASME A17.1 (elevator emergency communications). A POTS replacement solution must preserve compliance with these standards while delivering resilient connectivity.

Modern POTS replacement uses LTE/5G cellular modems with dual-carrier failover, encrypted transport, and remote management. The result is a managed dialtone line that is typically 30-60% less expensive per month than legacy copper, with superior reliability through automatic carrier failover and 24/7 monitoring.

True911, Manley Solutions' flagship platform, is a managed POTS replacement built specifically for life-safety applications. It includes Red Tag Lines (drop-in LTE/5G replacements), Priority Dialtone, AI device monitoring, E911 and NG911 integration, and centralized carrier management across an entire portfolio of endpoints.