NE #86 SIP Fake Call Hold aka Mute

[@rohit_advait]

how we would know in the trace that the operator puts the customer on mute? is there any filed in SDP which indicates that part?

[@NetworkEngineeringVideoBlog]

yes, you'll see "recvonly" in the SDP from the operator and your phone will reply with "sendonly" in the sdp. I believe I show the wireshark trace in the video.