T1/PRI | Article about T1/PRI by The Free Dictionary
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PRI: see Institutional Revolutionary partyInstitutional Revolutionary party,
Span. Partido Revolucionario Institucional (PRI), Mexican political party. Established in 1929 as the National Revolutionary party by former President Plutarco Calles, it brought together the country's governmental, military, and
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PRI(Primary Rate Interface) A digital transmission service for businesses from the telephone company. Widely used to connect a company PBX to the public switched telephone network (PSTN), PRI is an ISDN dial-up service that is based on the T1 line in North America (24 channels) and E1 in Europe (32 channels). Typically using four wire pairs, PRI/T1 provides 23 voice channels and one signaling channel, and PRI/E1 delivers 30 voice channels and two signaling channels. See ISDN, T1 and E1.