rates shall be based on the recovery of costs incurred by an efficient operator; the evaluation of efficient costs shall be based on current cost values; the cost methodology to calculate efficient costs shall be based on a bottom-up modelling approach using long-run incremental traffic-related costs of providing the wholesale voice termination service to third parties;
bunaithe ar ghnóthú na gcostas sin arna dtabhú ag oibreoir éifeachtach a bheidh na rátaí; beidh measúnú costais éifeachtúla bunaithe ar luachanna costais reatha; bunaithe ar chur chuige samhaltúcháin ón mbun aníos, a bhainfidh úsáid as costais atá gaolta le trácht incriminteach fadtréimhseach seirbhís foirceanta glao gutha mórdhíola a sholáthar do thríú páirtithe, a bheidh an mhodheolaíocht chostais lena ríomhtar na costais éifeachtacha;