What happens when you answer a call in WhatsApp - briefly?
When you answer a call on WhatsApp, the app immediately connects you to the caller, enabling real-time voice or video communication. The call interface displays the contact's name and profile picture, along with options to mute, switch cameras, or end the call.
What happens when you answer a call in WhatsApp - in detail?
When you answer a call in WhatsApp, several processes occur behind the scenes to facilitate seamless communication. Firstly, upon accepting the call, your device establishes a direct peer-to-peer connection with the caller's device using Signal Protocol, which is an end-to-end encryption system developed by Open Whisper Systems. This ensures that all data transmitted during the call remains private and secure, preventing unauthorized access or interception.
Next, your device initiates real-time audio or video streaming depending on whether you are making a voice call or a video call. For voice calls, your device uses Opus codec to compress and transmit the audio data efficiently, while for video calls, it utilizes VP8 codec for video compression. These codecs optimize the quality of the call based on your network conditions, ensuring clear communication even with limited bandwidth.
During the call, WhatsApp continuously monitors the network connection and adjusts the call parameters accordingly to maintain a stable connection. If there is a sudden change in network conditions, such as switching from Wi-Fi to cellular data or vice versa, WhatsApp handles the transition smoothly without interrupting the call. This adaptability enhances the overall user experience by minimizing disruptions and ensuring consistent call quality.
Additionally, WhatsApp provides various features during a call that can be activated with just a tap on the screen. These include muting the microphone, switching between front and rear cameras (for video calls), and using the speakerphone option. These interactive elements allow users to customize their calling experience based on their preferences and surroundings.
In summary, answering a call in WhatsApp involves establishing a secure connection, initiating real-time audio or video streaming, monitoring network conditions, and providing user-friendly features for an optimal calling experience.