Software applications enabling telephone calls over a Wi-Fi network represent a significant advancement in communication technology. These applications bypass traditional cellular networks by leveraging internet connectivity for voice transmission. For example, a user can make a call via a wireless internet connection using a smartphone or tablet, even in areas with weak or no cellular signal.
The importance of these applications stems from their ability to reduce calling costs, improve call quality in certain environments, and maintain connectivity in areas with limited cellular infrastructure. Historically, such functionality was limited by bandwidth availability and the reliability of Wi-Fi networks. However, improvements in network technology and the proliferation of Wi-Fi access points have made this a viable and increasingly popular communication method.
