Hi, I have written the pipeline to receive pcmu audio in sip call from rtp port. Caller send the dtmf signal on a same port which is used for audio. I want to receive and decode that rtp dtmf signal send by the caller. When I reserched for solution of this opertion. I found that rtpdtmfdepay is used to decode the rtp dtmf. Can you tell me How can I use rtpdtmfdepay element in my pipeline ? or please give me any example with pipeline for decoding rtp dtmf using gstreamer. Any help/pointer appericiated ... -- Thanks & Regards, Amar.