1. A method in a first voice activity detector, VAD, for detecting voice activity in a received input signal, the method comprising: receiving a signal from a primary voice detector of said first VAD indicative of a primary voice activity decision made by the primary voice detector regarding voice activity in said input signal, wherein the primary voice activity decision is an intermediate voice activity decision of said first VAD in the sense that the primary voice activity decision is made by the first VAD without having been processed by a hangover addition unit of said first VAD, receiving one or more signals from one or more second VADs external to the first VAD each indicative of a voice activity decision made by a respective second VAD regarding voice activity in said input signal, each second VAD comprising its own primary voice detector and hangover addition unit distinct from that of said first VAD, combining the voice activity decisions indicated in the signal received from the primary voice detector of said first VAD and the one or more signals received from the one or more second VADs to generate a modified primary voice activity decision, and sending the modified primary voice activity decision to a hangover addition unit of said first VAD that is configured to make a final voice activity decision of said first VAD.