Galaxy phones with One UI 7 have VoLTE enabled by default

Today, the GSM Association (GSMA) announced that it has collaborated with Samsung to improve the quality of voice calls on 4G LTE and 5G networks. This will be done by expanding the global rollout of VoLTE by enabling it by default on all Galaxy phones and tablets running Android 15 (One UI 7.0).

GSMA and Samsung have partnered for a seamless global rollout of VoLTE. As a part of this collaboration, Samsung will enable VoLTE by default on all smartphones and tablets running Android 15 (One UI 7.0). So, all the phones getting the One UI 7 update or launching with it will have VoLTE turned on by default. Usually, when a call happens over VoLTE, phones display the HD Voice logo.

VoLTE offers better voice call quality compared to regular voice calls on 2G and 3G networks. It also makes sure that essential telephone services, such as emergency calling and roaming, work well globally when many network operators have started transitioning away from 2G and 3G networks to 4G and 5G networks for higher capacity, faster data speeds, and better overall quality.

Wherever supported, Samsung phones running Android 15 (or newer) will use VoLTE for voice calls. Samsung has used GSMA’s Network Settings Exchange (NSX) and Interoperability Testing services for testing this feature. VoLTE calls are used by utilizing operator-defined IMS settings distributed via the NSX platform or defaulting to GSMA Profile #4.

Since Samsung sells millions of Galaxy phones every year, it needs to test devices at a huge scale. This is why it has decided to align its testing protocols with GSMA's VoLTE testing protocol. It also helps operators around the world in assessing VoLTE readiness through standardized tests.