Fast-growing Indian mobile operator Reliance Jio may offer a glimpse of where all mobile networks are going eventually, to packet-based Internet Protocol infrastructure.
At Mobile World Congress, the world’s largest gathering of the mobile industry, Reliance Jio stands out by having none of the specialized 2G and 3G infrastructure that long distinguished cellular carriers.
Almost all mobile operators still have circuit-switched network gear in addition to IP systems. It came along with the 2G and 3G networks the carriers used before adopting LTE. Most are likely to keep older networks running for years, though some are moving faster than others to clear the decks.