No audio is heard in local speaker ======================================== Checklists: #. :any:`/specific-guides/audio-troubleshooting/checks/device` #. Check that no other application is using the devices. It is common to not be able to use sound device when other application is using the device. #. :any:`/specific-guides/audio-troubleshooting/checks/loopback`. Check that speaker is functioning properly by looping-back microphone to speaker device. #. :any:`/specific-guides/audio-troubleshooting/checks/play_wav`. #. :any:`/specific-guides/audio-troubleshooting/checks/no_rx_rtp` #. :any:`/specific-guides/network_nat/nat_guide` #. :any:`/specific-guides/audio-troubleshooting/checks/conf_connections`. Check that the call is connected to the sound device in the conference bridge. #. :any:`/specific-guides/audio-troubleshooting/checks/cpu`