MGCP Media Gateway Control Protocol A protocol for IP telephony that enables a caller with a PSTN phone number to locate the destination 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 Lake Forest broadband news, Lake Forest, IL news broadband Lake ForestLake Forest news, broadband Illinois, Lake Forest broadband news
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