If the sip call is on-holding, we should not set the audio to MODE_NORMAL, or it will affect the audio if there is an active pstn call. Change-Id: If1bcba952617bf8427bc9e2d64d483ba1ee37370
Change-Id: I1808f715d56c0979cea7741cb5bdb3831774d3ef
Change-Id: Ib81dadc39b73325c8438f078c7251857a83834fe