Voice over Long Term Evolution (VoLTE)
Networking , Technology & Science / January 16, 2018

Rapid increase in data traffic over cellular network is necessitating deployment of Long Term Evolution (LTE) in the cellular operator’s networks. While LTE provides efficient data traffic handling and high data rates, it lacks native circuit switched voice capability. Mobile operators have begun migrating to fourth-generation (4G) architectures based on the Long-Term Evolution (LTE) standard, including the Evolved Packet Core (EPC) architecture defined by the 3rd Generation Partnership Project (3GPP). According to a recent report from the Global mobile Supplies Association (GSA), LTE has become the fastest-developing mobile communications systems technology. What is Voice over Long Term Evolution (VoLTE)? The data traffic, in telecom system, is growing at a rapid pace. However, presently for any mobile system to be commercially viable, the ability to carry voice traffic is essential. The existing 2G/3G mobile systems use “Circuit Switching” to carry voice traffic. In Circuit Switching a dedicated, end-to-end, channel or circuit is established to carry the voice traffic for the entire duration of a transmission. On the other hand, in case of IP networks, the voice traffic is carried using IP packets over data connection. For this generally “VoIP” or “VoLTE” solutions are used. For mobile communications service providers (CSPs), Voice…

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