any minimum levels of quality of service to the extent that these are offered, and taking utmost account of the BEREC guidelines adopted in accordance with Article 104(2) regarding:
aon íosleibhéil cháilíochta seirbhíse a mhéid a thairgtear iad, agus lánaird á tabhairt ar threoirlínte BEREC a glacadh i gcomhréir le hAirteagal 104(2) maidir le: