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VoLTE

Voice Over LTE (Long Term Evolution)

A standard allowing voice calls to be placed over an LTE network.

See: LTE

VoLTE also updates voice connections to use a more more modern packet-switching technology, instead of old, inefficient circuit switching.

See: Packet Switching

See: Circuit Switching

Most LTE networks worldwide were launched initially supporting only data service. A stop-gap technology called CSFB allowed phones to use LTE for data and 2G or 3G networks for voice.

See: CSFB

VoLTE allowed LTE (4G) networks to completely replace 2G and 3G networks. It also eliminated the need for CSFB.

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