The telecommunications system of the present disclosure is designed for modern edge scalability to support one-number unification of multiple voice communication devices registered through heterogenous pots, cellular, and VOIP/SIP providers. The system advantageously utilizes only voice or audio services and requiring device data or SMS capabilities for device security verification and call routing management. Within this framework, actual secured device requests for call routing have an overhead limited to approximately a few seconds. The telecommunication system allows a viable service to function well in saturated cellular environments and poor signal scenarios due to prioritization of voice-channels over data and SMS network packets on 2G, 3G, 4G, and next generation cellular technology.