The difference between VOLTE and VONR: 1. HD voice is China Unicom’s 3G high-definition voice, while Volte is 4G high-definition voice; 2. HD Volte is used under 4G network, while HD voice is used under WCDMA 3G network.
#The operating environment of this article: Windows 7 system, Dell G3 computer.
HD voice is China Unicom’s 3G high-definition voice.
Volte is 4G high-definition voice.
Both support making calls and surfing the Internet at the same time, and both support high-definition voice.
Difference: Volte is used under 4G network. HD voice is used under WCDMA 3G network.
Volte uses a data network, which saves network bandwidth. However, if the network speed drops, calls will be affected, similar to WeChat voice. However, it is quicker to get through to the phone.
HD Voice splits voice and data concurrently, like a two-way four-lane, one upper and lower lane for data Internet access, and one upper and lower lane for voice calls. So it's more stable and the signal is better. But it’s more of a waste of resources. The call connection speed is several times faster than 2G and a little slower than 4G Volte.
In terms of user experience, 3G HD Voice is more practical and has a better experience. 4G Volte is more advanced. However, Volte is only a transition, and 5G VoNR is the most advanced. There will be 6G in the future, and we don’t know yet what the name of 6G voice calls will be.
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