I am porting VoIP client application to N95 (s60 3rd edition FP1) with VAS. During VoIP call N95 sends noise to remote end. The RTP packet trace shows '0's(Zeros) in RTP packet (Codec PCMU/PCMA). I tried with setting VAD flag but it didnt work. Is there any workaround or flags that can be used to stop N95 sending RTP packets with zeros?