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This article mainly introduces what volet refers to, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to understand it.

VOLTE, whose full name is Voice over Long-Term Evolution (long-term evolution voice bearer), is a high-speed wireless communication standard for mobile phones and data terminals. The most direct feeling that VoLTE brings to 4G users is shorter waiting time, higher quality and more natural voice and video calls.

The full name of VOLTE is Voice over Long-Term Evolution (long-term evolution voice bearer), which means a high-speed wireless communication standard for mobile phones and data terminals.

It is based on the IP Multimedia Subsystem (IMS) network and uses a special profile (defined by the GSM Association in PRD IR.92) for the control plane (Control plane) and the media plane (Media plane) of voice services on LTE, which enables voice services (control and media layer) to be transmitted as data streams in LTE data bearer networks without having to maintain and rely on traditional circuit-switched voice networks.

The voice and data capacity of VoLTE is more than three times that of 3G UMTS and more than six times that of 2G GSM. Because the VoLTE packet header is smaller than the unoptimized VoIP/LTE, it also uses bandwidth more efficiently.

Advantages and characteristics

The most direct feeling that VoLTE technology brings to 4G users is shorter waiting time for switching on, and higher quality and more natural voice and video calls. VoLTE is essentially different from 2G and 3G voice calls. VoLTE is an end-to-end voice scheme under the condition of full IP on 4G network. Compared with 2G and 3G voice calls, VoLTE can improve voice quality by about 40% because it uses high-resolution codec technology. VoLTE brings users lower access latency (waiting time after dialing), which is 50% lower than 3G, which is about 2 seconds, while the 2G era is 6-7 seconds. In addition, under 2G and 3G, dropping occurs from time to time, but the dropping rate of VoLTE is close to zero.

For operators, the deployment of VoLTE means opening the way to the evolution of mobile broadband voice. In the long run, this will bring two aspects of value to operators, one is to improve wireless spectrum efficiency and reduce network costs. Because for voice services, the spectrum utilization efficiency of LTE is much better than that of the traditional standard, which is more than 4 times that of GSM.

Another value is to enhance the user experience, VoLTE experience is significantly better than traditional CS voice. First of all, the introduction of high-definition voice and video codec significantly improves the communication quality; secondly, the duration of VoLTE calls is greatly shortened, and tests show that VoLTE calls are more than half shorter than CS calls; third, seamless integration with RCS can bring rich services.

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