Re: digital central office switch

Posted by phonefeline on December 14, 2003, 3:33 pm, in reply to "digital central office switch"

check this out www.hte.hu/ob/eng/3.pdf It is in PDF so you need Powerpoint to read or go to Google and do a search on that url and get access to the HTML version! Major Digital switchs in service in US DMS-100 (LOCAL) Nortel Networks DMS-10 (LOCAL) Nortel Networks #5 ESS(Local)Lucent/AT&T (formerly Western Elect) EWSD (Local) Siemens DCO (Stromberg Carlson/ Siemens DMS-200 (Toll) Nortel Networks DMS-250 (Toll) Nortel Networks #4ESS (TOLL) Lucent/AT&T (formerly Western Elect) --Previous Message-- : Hello, : I'm a student doing a term paper on central : office switching. One of the requirements is : a block diagram of a typical digital central : office switch. Does anyone know what are the : main typical components of a digital central : office switch or where i might be able to get : a block diagram of one. Also is the no. 5 : ESS considered a digital central office : switch?? Any help would be much aprreciated. : thanks! :

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Message Thread: digital central office switch - kim November 10, 2003, 1:21 am Re: digital central office switch - phonefeline December 14, 2003, 3:33 pm Re: digital central office switch - Paul Stav November 18, 2003, 7:14 pm « Back to thread

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