Abstract: An inflight communication system is disclosed. In some embodiments, the system includes a video display unit (VDU) with a detachable module having a plurality of user interface elements thereon to facilitate, for example, recovery from failure of one of the user interface elements in that the detachable module can be replaced without replacing the entire VDU. In some embodiments, the system includes a VDU with integrated and/or rendered flight attendant call button and/or reading light control button. In some embodiments, the system includes a public address (PA) system that bypasses the IFE head end servers when delivering PA audio to seat audio/visual (A/V) systems, thereby reducing or eliminating the risk of PA audio output failure on seat A/V systems due to server crashes and improving synchronization between the PA audio output on the public loudspeakers and the seat A/V systems.