Circuit Voice Has a Long Life During the Transition to Richer, Carrier-Grade VoIP
Circuit Voice Has a Long Life During the Transition to Richer, Carrier-Grade VoIP
The move to carrier-grade VoIP will occur gradually, and it may be many years before it is fully ubiquitous. Until then, operators offering LTE devices will rely on 3G voice, a proven circuit-switched (CS) system characterized by high quality service, reliability and ubiquity and whose efficiency continues to evolve. Even after VoLTE is available, 3G voice is needed to offer voice services outside LTE coverage areas.