A few seconds of extra latency on the data network will likely go unnoticed; but, on the voice network it can cause anarchy!
Their evaluations were based on three measurements: threshold (the amount of stimulation the child requires before responding); latency to respond (how rapidly the child reacts to the stimulus); and intensity of response.
A double-blind, placebo-controlled trial of 128 volunteers showed that valerian significantly improved the sleep habits of self-described poor sleepers and insomniacs by effectively reducing sleep latency.
They have high latency rates or high time delays between the time you start a specific function, like dialing in to your ISP, and the time you actually connect and are good to go.
Multiple Sleep Latency Test - A ten-hour test during which the patient is asked to take a series of naps every two hours and then stay awake between the naps.