 There are times when packets will sit in WTCP's buffer for many milliseconds.In order to avoid having either TCP end host go into its congestion avoidance mode, (due to TCP looking at a segment's timestamp and determining that it took a long time to arrive, therefore wrongly assuming it's due to congestion) WTCP uniquely hides the time spent by the packets at the WTCP proxy, so that the RTT estimation is not affected.In one study on WTCP's performance in Wireless WANs, WTCP showed an improvement of 20–200% over comparable TCP algorithms such as New Reno, Vegas, and Snoop.