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Talk:PSTN network topology

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Article cleanup and sources

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This article is in serious need of cleanup and the addition of sources. I will be flagging or removing unsourced content as the first step in this process. —danhash (talk) 13:59, 26 September 2014 (UTC)[reply]

Small Step

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What is a step? There are two references (in UK and France sections) on this page to step exchanges and step offices, but no explanation of what one is! From context, it might be a subexchange from a larger nearby one, but it's not very clear. AnotherHowie — Preceding unsigned comment added by 81.99.254.3 (talk) 12:47, 3 June 2017 (UTC)[reply]

Thanks. Those of us who spent decades in the business sometimes forget we're speaking jargon. It means Strowger switch exchange. Jim.henderson (talk) 00:57, 7 June 2017 (UTC)[reply]