On 06/24/2011 03:53 AM, Robert-iPhone wrote:
isnt voip great - nobody learns telecom 101. LERG LRN LNP OCN B8ZS / SF
At the risk of being wrong (it's been more than a decade since I worked at Lucent), iirc LERG, LRN and OCN are US centric. Since I'm on the other side of the Big Blue Pond I don't need to know them :) It probably helps if one knows LNP if one offers or uses VoIP services. B8ZS line encoding. Iirc a funky version of AMI because the US suffered from not-invented-here syndrom so they came up with a tweaked version of AMI called Bipolar-8-0-substition. Nuf said :) Brings back memories of long nights troubleshooting international circuits with BERT testers and hopping on planes to follow the nodes so we could finally pinpoint which carrier was lying about nothing being wrong with their stretch.
just the good ole days 5ESS / DMS RCV
5ESS wasn't my thing. They were just really big and did not do very exciting things so best left alone with the ancient bearded tribe that ran those monsters. All I can remember about the Nortel stuff was that it was really loud, particularly their X.25 nodes. I do have fond memories of all the Ascend gear (the TNT, CBS-500 and GX-550) and all the Lucent experimental DWDM and SDH gear that we got to play with. "If we build it they will come" - wonder if we will ever see those days again. Regards, Patrick