The com.android.server.telecom also provides us with some very useful features such as call, call recall, callAudioState. In Call Details, com.android.server.telecom is responsible for handling all the incoming and outgoing calls and displays notifications of each thing on the screen of the Android user. In Incall recall, all the RTT information for the call is held. The RTT information is basically the route of the call and is responsible for rerouting the call. In callAudioState, the com.android.server.telecom also handles all the in-call features such as calling audio status, muting the call, and making sure if the sound is coming in and going out fine. It is also responsible for managing the call recordings as well.