VoLTE vs VOIP

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Voice over IP (VoIP) is a voice over IP network. Different from the 2G/3G voice service provided by traditional carriers, VoIP is mainly used for point-to-point full-duplex calls. For example, the call functions of Skype and WeChat belong to VoIP. VoIP is generally unaware of pipes and can be used on fixed networks or wireless networks. The network does not provide special priority assurance. VoIP data packet switching complies with the principle of "whoever radially. arrives first, whoever serves first". Voice packets and data packets are transmitted together. Therefore, the priority of voice packets cannot be guaranteed. As a result, packet loss and delay problems occur, and voice quality cannot be ensured. Voice packets are not well protected. They are transmitted on the network according to the best-effort principle. Therefore, VoIP cannot ensure the stability of the voice quality. This is the reason why the voice quality of VoIP calls is unstable. However, with the acceleration of broadband over the past few years, the voice quality of VoIP is improving.

Voice over LTE (VoLTE) is an upgraded version of the 2G/3G voice service of operators. It is actually IP voice. However, based on the LTE wireless network, VoLTE services have a better QoS guarantee than WeChat (the default QCI 9 is used). Signaling is transmitted over bearers with high-priority QCI 5, voice is transmitted over bearers with high-priority QCI 1, and video is transmitted over bearers with high-priority QCI 2 (not commercially used currently). The IMS is introduced to VoLTE. The IP multimedia subsystem (IMS) provides multimedia IP services, including VoIP. The LTE network transmits only data packets. Therefore, voice and related signaling are packaged in data packets (with a higher priority) for transmission. The IMS network receives and processes these data packets, distinguishes the signaling and voice data parts of these data packets, and manages the voice control plane (IMS signaling). and the user plane (IMS traffic).

For details about VoIP and VoLTE, see Introduction to the VoIP Technology and What is VoLTE.

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Dear User,

Differences Between VoIP and VoLTE

1. Meaning: VoIP means ‘Voice over Internet Protocol’ whereas, VoLTE stands for ‘Voice over LTE network’.

2. Technology: The major difference between VoIP and VoLTE is based on the technology they both use. VoIP uses a web-based network such as 3G, wifi or ADSL to transfer voice data. These modes of transfer of data are commonly used as they are easy to access. VoIP is very common among smartphones and computers, however; there are a few barriers which users have to face. Whereas, VoLTE is using LTE network technology such as 4G for transferring voice data from one place to another. It has a faster bandwidth and speed which helps to attract more people in using this network. Due to the efficiency of VoLTE, it is preferred over VoIP. Most modern smartphones are supporting VoLTE technology for transferring voice data.

3. Network: VoIP is using networks such as 2G and 3G whereas, VoLTE is using 4G for transferring voice data.

4. Establishment: VoIP was introduced in the 1990’s and had immense popularity as it helped people in transferring voice messages from one place to another without any problem, however, there were a few hurdles due to the lack of internet range whereas, VoLTE was established in 2000’s and since then it has been improved in many ways to help people communicate with each other without having to face any hurdles.

5. Connectivity: VoIP is supported by web and VoIP phones whereas; VoLTE is supported by the modern smartphones. As compared to VoIP, VoLTE has a higher bandwidth and it offers a better quality. VoLTE sends high definition voice data from one place to another however, VoIP sends the packets of data which is the actual voice digitized in the form of data through the internet from the sender to the receiver. These packets of data are not given any special priority whereas; the VoLTE packets are given special priority.

Conclusion

The quality of voice calls through VoLTE is much better as compared to the normal voice calls through VoIP due to the HD voice devices being used by the VoLTE users. However, if one end doesn’t have an HD quality network then the voice quality won’t be the same. There are still many VoIP networks that are being used on a daily basis as they are very reliable and loyal to their customers. You need to do proper research on VoIP network before indulging in it so you know that it is trustworthy.

https://www.pulsar360.com/blog.aspx?p=what-is-the-difference-between-voip-and-volte-180710#:~:text=Connectivity: VoIP is supported by,it offers a better quality.

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