circuit, central office trunk — A trunk circuit located at the PBX end of a PBX trunk … IT glossary of terms, acronyms and abbreviations
central office PBX trunk — The facility between the telephone company central office and the interface at the user PBX … IT glossary of terms, acronyms and abbreviations
trunk, foreign exchange — (FX) A trunk connecting a PBX to a central office other than its normal serving central office … IT glossary of terms, acronyms and abbreviations
Central Organization for Railway Electrification — केन्द्रीय रेल विद्युतीकरण संगठन, Central Organization for Railway Electrification Type Government Owned Industry Railways and Locomotives … Wikipedia
Central Bureau — The Central Bureau was one of two Allied Sigint organisations in the South West Pacific area (SWPA) during WWII. Central Bureau was attached to the HQ of the Allied Commander of the South West Pacific area, Douglas MacArthur. The other unit was… … Wikipedia
toll connecting trunk — Trunk utilized to link a local central office (Class 5) to the direct distance dialing network … IT glossary of terms, acronyms and abbreviations
attendant CO trunk to CO trunk connection — A feature that allows the attendant to connect a central office (CO) trunk call to another CO trunk and then release the call from the console … IT glossary of terms, acronyms and abbreviations
Mobile Telephone Switching Office — The Mobile Telephone Switching Office (MTSO) is the mobile equivalent to a PSTN Central Office. The MTSO contains the switching equipment or Mobile Switching Center (MSC) for routing mobile phone calls. It also contains the equipment for… … Wikipedia
tandem office — noun : a telephone central office or switchboard used entirely for the interconnection of telephone exchanges that reduces the number of trunk circuits … Useful english dictionary
intraoffice trunk — Telephone path between two pieces of equipment within the same central office … IT glossary of terms, acronyms and abbreviations
PBX trunk — A transmission path between a PBX and a commercial central office … IT glossary of terms, acronyms and abbreviations