Template talk:Telephone Switches

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This template is only for switches used in countries participating in the North American Numbering Plan, and Mexico. For switches used in Europe/Asia/etc., if anyone is interested, they can of course make a new template covering those topics. X570 22:39, 27 January 2007 (UTC)

Wow. I'm slightly embarassed. You probably saw my little harrangue in the discussion page of Project Bell System against excessive templates taking up page space and, for slow connections, transmission time. This one has the great merit of being small, unlike the AT&T one that lists all the subsidiaries and the whole Board of Directors and is displayed in all their articles. I notice that there's a "hide" option and only wish most templates were able to arrive in "hidden" state, ready for the reader to click to reveal itself.

Anyway, on the whole I am pleased. Minor nit picking, was EWSD ever a major presence in the US market? Maybe in Mexico, since I know next to nothing of Mexico after its Ericsson crossbars. If so, I guess it belongs. I have written 1ESS switch to include 1A but I guess you are right to make a separate link for it. One of these days the article might become large enough that 1AESS will need its own article. Hmm, and Panel switch was a major presence, but of course it isn't crossbar (In its article I haven't mentioned crossbar switches connecting Auxiliary Senders to Panel Senders). Maybe I'll play around with changing the "crossbar" heading to an "electromechanical" or "pre computer" one. But then there goes the built in crossbar switch link. It will take a little thinking.

Hmm, and these article titles are inconsistent in capitalization. Maybe it came that way when I arrived, but it's my job to fix them. Nuisance now, but bigger nuisance later.

Jim.henderson 03:15, 28 January 2007 (UTC)

I know BellSouth uses a Siemens switch in Boynton Beach, FL. Beyond that I don't know how common it is in North America. X570 00:58, 29 January 2007 (UTC)

Siemens corporate Website claims twenty million lines working in USA. That makes a very strong third place position for installed base and goes to show how ignorant I can be on developments of the past decade or more. What irritates me more is, I am unable to find a good technical description in English. I can only wonder why the US users aren't interested in putting it in Wiki. User:Jim.henderson editing without signing in 166.68.134.174 02:52, 29 January 2007 (UTC)

It's actually much more probable that it's not EWSD, but the Siemens DCO, which is a product Siemens acquired with along with Stromberg-Carlson.
http://www.icn.siemens.com/carrier/products/switching/dco.html
There doesn't seem to be any wikipedia article on this switch, however. Do you know anything about this switch?
X570 05:30, 29 January 2007 (UTC)

Sorry to be gone so long, not that there was a good reason. No, I know nothing more than Wikipedia does about DCO or EWSD, which is close to none. I see that you added a line to the template for pre crossbar. To my mind, the template is too big, though you might bear in mind that to my mind most Wikipedia templates are too big or not worthwhile or both. I don't understand how the text centering system works, except that when I resize my browser window it works pretty well at moving an item to another line. This suggests that perhaps the template ought to be made with only two headings, each for a single line list of CO types. First should be "Electromechanical" with a single line for SXS, Panel, 1XB, 5XB, XY if someone turns up some information, etc. No need to link to "Crossbar" since the articles do that. Second heading, SP1, reed types and real ESS. Or SP1 could be in XB. Whatver. No need for explicit line divisions; it will wrap as needed. Jim.henderson 00:41, 2 February 2007 (UTC)

There, that's my idea of what ought to be reproduced on multiple pages. Skinny and simple. Yes, the crossbar link is gone, but I don't think it needs to be put on multiple pages since each appropriate article has such a link anyway. Obviously anyone who didn't just now do their very first Template edit should feel free to say what I did wrong or simply repair it. Jim.henderson 21:39, 5 February 2007 (UTC)

I decided to add a link for the Automatic Electric GTD-5 EAX switch, but there really isn't any documentation of any sort on the web. Like the DCO, it primarily turns up in rural areas, with the exception of some parts of GTE territory, such as Los Angeles. Also, it is what I believe to be one of the two fully-digital switches in which VoIP conversion hardware hasn't been produced for. For reference, that other switch is the DCO.

ThoughtPhreaker 00:20, 13 February 2007 (UTC)