I means no analyze a sinlge PDU, but anylyze the whole file of the .pcap. Just like the did under the menu of telephony.
I am using some kind of media protocol with a timestamp. and my listener reports the timestamp was wrong sometimes.
So I want to check those packages one by one and find if there were some of them in a wrong order. like the 1st one's timestamp is 2, 2nd one is 4, the 3rd one is 3. things like this.