On February 24, the communication people home netizen @Gartch said that the Xiaomi mobile phone entered *#*#8667#*#* in the dialing interface to open the VoNR HD call step by step.
Compared with many small partners do not understand what VoNR is, its full name is Voice over New Radio, which can be simply understood as a high-definition call under 5G, and VoLTE is similar to something. The difference between VoLTE and VoNR is the underlying mobile network and radio architecture. VoNR establishes a phone connection and converts it into a packet, which is then transmitted through the 5G and IP Multimedia Subsystem (IMS).
Compared to VoLTE, it has the following advantages:
Significantly lower latency;
Improve call quality;
Faster call connections.
In order to provide faster network speeds, 3G makes many networks do not support voice channels, and can only rely on 2G networks to make calls. Therefore, every time you call, you must disconnect the network, and the call quality is not good, and the emergence of VoLTE has greatly improved this problem.
However, VoLTE still has a certain delay, and the emergence of VoNR can better solve this problem. Friends who like to play games, it is best to turn on VoLTE and VoNR, so that even if you enter the phone while playing the game, the network speed will not be too low.
In terms of operators, the wealthy Zhongguo Mobile is already promoting the popularity of VoNR, and it is expected to achieve nationwide network coverage within two years, while Unicom has just started testing. Operators are relatively fast in promoting the popularization of 5G, and at this stage, Xiaolei recommends users to buy mobile phones that support VoNR.
Qualcomm supports VoNR on the X52 baseband, and MediaTek and Kirin's newer flagship chips also support VoNR. At this stage, buying a new mid-to-high-end mobile phone will basically support this function.
VoLTE already offers a great experience, and VoNR is just the icing on the cake. However, at this stage, the 4G signal coverage in some areas is not as good as 5G, which may be the reason why too many 4G base stations have been changed to 5G base stations, and the network speed under 4G in some parts of Guangzhou is extremely low, and the experience is far less than 5G. In this case, the phone support for VoNR is a great improvement in the user experience.