Why Almost Everywhere Isn’t Enough: The Real Lessons of VoLTE Roaming
Voice over LTE (VoLTE) was once billed as the future of roaming voice. By carrying calls over 4G LTE’s IP data channels instead of legacy 2G/3G circuits, operators expected lower costs, higher capacity, and HD-quality voice. It promised to simplify infrastructure and align with LTE and 5G’s all-IP design. On paper, VoLTE has lived up […]