A Walk Through the Park – OTT Voice Observations – Part 4 (opens in new tab)

All right, after the first 3 parts, let’s get out into the park and have a look at how packet jitter looks like during a voice call when there’s pretty much nothing between my mobile device and the radio tower(s). As before, I used tcpdump / Wireshark and a little program of my own to capture and visualize the inter-packet time distances. For this test I modified my test setup a bit, as I had both devices for the call with me. Hence I couldn’t trace on my Wi-Fi router at home. Instead I trace...