Try "fifo reparse".

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Date: Wed, 11 Sep 2013 13:43:38 +0200
From: Antonio Silva <asilva@wirelessmundi.com>
Subject: [Freeswitch-users] Best way to reload modfifo
To: FreeSWITCH Users Help <freeswitch-users@lists.freeswitch.org>
Message-ID: <1378899818.22099.27.camel@marces.madrid.commsmundi.com>
Content-Type: text/plain; charset="utf-8"

Hi,

What is the best way to reload mod fifo configuration?

Right now i'm using "reload mod_fifo".

Thanks,
Ant?nio