Section R746-340-7 - End User Service Standards For All Telecommunications CorporationsA. Public Telecommunications Services -- A telecommunications corporation providing public telecommunications services shall, excluding documented Allowed Service Disruption events listed under R746-340-1(B)(1): 1. meet minimum voice grade requirements as defined in R746-340-1(B)(19);2. meet network call completion standards: a. provide dial tone within three seconds on at least 98 percent of tested calls placed during average daily busy hours each month for each wire center; andb. assure that no interoffice facilities entirely within a telecommunications corporation's network, except choke network trunks, exceed two percent blocking. Intertandem facilities shall be governed by R746-365.Utah Admin. Code R746-340-7