Now, the Galaxy S21, Galaxy S21+, and the Galaxy S21 Ultra have also received support for Vo5G calls on T-Mobile’s network in the US.
The Middle East mobile operator Zain Kuwait announced the launch of its Vo5G service, but it is currently only available for the Samsung Galaxy S22 series.
This also means that the Samsung Galaxy S22, S22+ and S22 Ultra have become the world’s first smartphones to support Voice over 5G (Vo5G) communications, and Zain Kuwait has become the world’s first operator to offer Vo5G services to smartphone users.
Zain deployed its 5G network earlier this year after extensive testing and believes it will operate at the highest quality nationwide. With the completion of the full-featured standardization of the first phase of 5G, the commercial process of 5G networks has begun.
When operators deploy 5G, in addition to factors such as the expansion of 5G network coverage and the maturity of the terminal ecosystem, they also need to consider factors such as many 5G networking deployment options.
Huawei released the “Vo5G Technical White Paper” in 2018. Based on the progress of Vo5G (Voice over 5G) standards and the progress of voice and video coding standards, it analyzed the evolution of Vo5G under different 5G networks. At the same time, it is pointed out that deploying IMS and accelerating the commercialization of VoLTE is the only way to move toward Vo5G.
It is said that the 5G voice solution will face many options including VoNR, VoeLTE, EPS FB, RAT FB, etc. The industry needs to use Vo5G to collectively refer to all the above 5G voice solutions and have a unified understanding.
Huawei said that the 5G SA scenario voice in 5G voice is divided into two stages. In the initial stage of network construction, the transition scheme of EPS FB (5G falling back to 4G) is adopted. When the NR coverage is wide and the network is optimized, the voice will be transformed into VoNR.
The white paper also shows that Vo5G has been standardized with the standardization process of 3GPP 5G, Vo5G must be provided based on IMS, and VoLTE will become the basic voice network in the 5G era, and cooperate with Vo5G to ensure the continuity of voice services. Therefore, deploying IMS and accelerating the commercialization of VoLTE is the only way to move towards Vo5G.