Applications enabling telephone calls over wireless internet connections without incurring traditional cellular charges are available for mobile devices. These applications leverage Voice over Internet Protocol (VoIP) technology to transmit voice data via Wi-Fi networks, allowing users to make and receive calls using their smartphones, tablets, or computers when connected to a wireless hotspot.
The significance of this technology lies in its potential to reduce communication costs, especially for international calls or in areas with limited cellular coverage. The emergence of these applications reflects the increasing availability of Wi-Fi networks and the desire of users to find cost-effective alternatives to traditional mobile phone plans. Their adoption has been further fueled by the improved quality of VoIP technology, providing clearer call quality and more reliable connections.