Telecommunications Glossary of terms used on this site

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Term Definition
Primary Rate Interface

A Primary Rate Interface, or PRI is a standards based telecommunications service for transporting multiple DS0 voice and data streams between a user and network. A subset of the ISDN or Integrated Services Digital Network specification, and implemented on E1 & T1 lines, PRI is the standard for delivering telecom services to business locations. On T1 lines operating at 1.544 Mbps, PRI provides 23 B channels (for user data) and 1 D channel (for control and signaling).

Aliases (separate with |): PRI
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