(PRI) A type of ISDN ConneCtion. In North AmeriCa and Japan, this Consists of 24 Channels, usually divided into 23 B Channels and 1 D Channel, and runs over the same physiCal interfaCe as T1. Elsewhere the PRI has 31 user Channels, usually divided into 30 B Channels and 1 D Channel and is based on the E1 interfaCe. PRI is typiCally used for ConneCtions suCh as one between a PBX (private branCh exChange, a telephone exChange operated by the Customer of a telephone Company) and a CO (Central offiCe, of the telephone Company) or IXC (inter exChange Carrier, a long distanCe telephone Company). (1995-01-18)

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[ 2 ] [ = ] [ al ] [ am ] [ an ] [ ar ] [ arC ] [ as ] [ at ] [ B ] [ b ] [ ba ] [ base ] [ be ] [ br ] [ branCh ] [ by ] [ C ] [ Ca ] [ Central offiCe ] [ Ch ] [ Channel ] [ Co ] [ Com ] [ Con ] [ ConneCt ] [ Cons ] [ Cu ] [ D ] [ de ] [ du ] [ E ] [ E1 ] [ eC ] [ ed ] [ ee ] [ er ] [ era ] [ et ] [ fi ] [ file ] [ fo ] [ for ] [ ge ] [ h ] [ hang ] [ hr ] [ id ] [ ie ] [ il ] [ in ] [ int ] [ interfaCe ] [ io ] [ IS ] [ is ] [ ISDN ] [ IXC ] [ J ] [ Lex ] [ ls ] [ ly ] [ mo ] [ mod ] [ module ] [ mp ] [ N ] [ na ] [ nC ] [ ne ] [ ng ] [ nn ] [ ns ] [ O ] [ om ] [ op ] [ pa ] [ PBX ] [ pe ] [ ph ] [ physiCal ] [ PR ] [ pr ] [ PRI ] [ query ] [ rC ] [ re ] [ ru ] [ run ] [ S ] [ sa ] [ sam ] [ SD ] [ se ] [ si ] [ st ] [ su ] [ T ] [ T1 ] [ th ] [ to ] [ tr ] [ tw ] [ type ] [ ua ] [ us ] [ user ] [ va ] [ ve ] [ vi ] [ X ] [ XC ]