device and establish a session. BLI Busy Lamp Indicator A light or LED on a telephone that shows which line is in use. PBX Private Branch eXchange An in-house telephone switching system that interconnects telephone extensions to each other as well as to the outside telephone network. DID Direct Inward Dialing The ability to make a telephone call directly into an internal extension without having to go through the operator. PRI Corte Madera dsl , Corte Madera, CA dsl Corte MaderaCorte Madera , dsl California, Corte Madera dsl
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