In case the user requests data stored in the storage device, the stored data are transferred directly to the user, without {TAIL ~ any need} to request and send these data for the second time via {HEAD ~ an IPTV server} and the core network 
In case the user requests data stored in the storage device , the stored data are transferred directly to the user , without { TAIL ~ any need } to request and send these data for the second time via { HEAD ~ an IPTV server } and the core network
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