Patent ID: 9167409
Filing Date: 2015-10-20
Classification: G10L,H04W

Abstract:
1. A method of receiving control signals relating to a call, comprising: determining whether received control signals contain music control information informing about a presence of a music signal in the call, wherein the music control information contains music start information indicating that a music signal will follow in the call; controlling a voice activity detector of a media gateway based on the received music control information, the voice activity detector configured to distinguish speech from speech pauses in the call; wherein, if the music start information is detected in the received control signals of the call, the voice activity detector for the call is disabled; wherein, when the music start information is detected by a control node of the call, the media gateway is instructed to switch off the voice activity detector until a music stop signal is detected by the call control node; wherein, in response to detecting the music stop signal, the call control node instructs the media gateway to place the voice activity detector in a status corresponding to a status thereof before the music start information was received.