What is Voice Calling API? A voice call API (application programming interface) is a set of pre-developed programs that allows you to integrate voice call technology with your preferred platforms. With voice call APIs, developers can easily integrate voice technology into your website or applications, and users can easily make or receive calls, use call diverting, make one-on-one and group calls, wait for calls, etc. Voice call APIs generally adopt and function through VoIP (Voice over Internet Protocol), which sends and receives signals through the Internet. It facilitates the global communication of voice calls at a lower cost than traditional phone lines. Explore more about voice calling API: https://www.contus.com/blog/voice-chat-api-for-enterprise-apps/