Embodiments of the present invention relate to the field of communication technologies, and in particular, to a method, {TAIL ~ an apparatus}, and a system for reducing line to line crosstalk during {HEAD ~ transmission} of a digital subscriber line service 
Embodiments of the present invention relate to the field of communication technologies , and in particular , to a method , { TAIL ~ an apparatus } , and a system for reducing line to line crosstalk during { HEAD ~ transmission } of a digital subscriber line service
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