HD Voice refers to high-definition voice calling, incorporating wide band audio technology to establish a superior standard for phone calls. This advancement enhances the overall calling experience by delivering clearer, more vibrant, and natural-sounding audio while effectively reducing background noise in various environments. Whether engaging in conversations with friends and family or participating in business teleconferences, HD Voice ensures that calls are crisp and of higher quality.

The functionality of HD Voice is enabled through VoLTE (Voice over Long Term Evolution) technology, often used interchangeably with HD Voice by many carriers. VoLTE represents the next generation of Voice over Internet Protocol (VoIP) and facilitates phone service over the internet. Unlike traditional VoIP, VoLTE uses a carrier’s LTE data network, transmitting calls and data simultaneously over the 4G LTE network. This approach significantly improves sound quality and data transmission speeds compared to older network technologies.