MIU takes care of trimming leading and trailing silence so that if the caller said nothing,
the silence is trimmed and the resulting recording is discarded. In some cases with PBX
integrations, if a user hangs up instead of recording a message and the disconnect event
does not come down right away, some clicking noise gets recorded as a message and left
for the subscriber. To help with this scenario, it is possible to edit this minimum recording
time on the SA under the Configuration\Recordings page; however, you should exercise
extreme caution if you opt to bump this value up from 1 second because it ...
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