What is the primary use of VoIP technology?

VoIP technology primarily revolves around converting voice signals into digital format, allowing these signals to be transmitted over the internet. This conversion enables users to make phone calls through the internet rather than traditional phone lines, which is more cost-effective and offers added functionalities such as video calling and conferencing features. The transition from analog to digital helps facilitate clearer calls and access to various communication services through flexible protocols, enhancing user experience significantly.

The other options are not primary functions of VoIP technology. Video streaming services and virtual reality experiences deal with different types of data and use cases, while storing large amounts of data relates more to data management and storage technologies rather than communication methods.