From: utzoo!decvax!harpo!duke!unc!brl-bmd!TELECOM@Usc-Eclb Newsgroups: fa.telecom Title: TELECOM Digest V2 #112 Article-I.D.: brl-bmd.347 Posted: Wed Sep 1 23:10:09 1982 Received: Sun Sep 5 05:18:32 1982 TELECOM AM Digest Thursday, 2 September 1982 Volume 2 : Issue 112 Today's Topics: Bryant Pond - Don't Yank The Crank More on VADIC 3400 Modems Tone Encoder & Decoder Query More Carter Lake, Iowa Trivia - State Boundaries Vs. River Course ---------------------------------------------------------------------- From: uucp at NPRDC >From sdchema!bam Tue Aug 31 18:03:52 1982 remote from sdcsvax An interesting article in Time Magazine about the last 'crank' telephone system in the country brings up a few questions.. I was under the impression that there were still quite a few of these manual systems left in the country... Mostly in some southwest desert communities. The last one to go in California was Catalina Island but that still should leave several in the state?! Does anyone have any details of similiar systems still operational? By the way, the Time article was about the impending loss of the 'crank' system to a dial one. The community of Bryant Pond was not thrilled by the idea and have organized a protest against the impending upgrade. "Don't yank the Crank" T-shirts are availble directly from them for Ten dollars. For more info, contact: DON'T YANK THE CRANK BOX 56 BRYANT POND, MAINE 04216 or call, Alice Johnson at: Bryant Pond 137 Bret Marquis ucbvax!sdcsvax!sdchema!bam sdcsvax!sdchema!bam@NPRDC ------------------------------ Date: 1 Sep 1982 0359-EDT From: HobbitSubject: More on Modems I have used a Vadic 3405 thru both direct calling *and* Sprint with very favorable results. Most of the direct calls are about 30 miles. The occasional hit does indeed show up as a ''y'', usually... this seems to be the default character that the Vadic gives you when it doesn't know what it received. If you begin to get lots of them on a good line, it is probably time to have the modem card looked at. Sometimes the echoing on a carrier service causes what approaches a loopback effect, and throws the whole thing off, but usually the transmission thru these is quite satisfactory unless you try and go cross-country or something. Okay. While someone is answering that question about 212, 212A, etc. could he also throw in a little piece about 202?? I believe this is a real protocol but I have no idea what it's about. In one of our pieces of Vadic documentation, there is mention of ''202 protocol'', but the reference is very unclear. Does it have anything to do with Vadic protocol? _H* ------------------------------ Date: 1 Sep 1982 0402-EDT From: Hobbit Subject: Tone chips I have for a while now wanted to build an autodialer that uses tones. Has anyone had any experience with any of those chips that do the tone generation? I hear they are cheap; if I could interface one to a micro with some simple port hardware I would be happy. Also, does anyone know any easy way to do tone *detection*? I would like to be able to talk to a micro remotely thru a touchtone pad. _H* ------------------------------ Date: 1 Sep 82 8:08:09-EDT (Wed) From: Carl Moore (VLD/VMB) To: john covert cc: cmoore at BRL Subject: river & state line Without knowing the details about Carter Lake, Iowa, I do recall reading years ago that if a river suddenly changes course (as it did at Carter Lake?) the boundary stays put. So the following is possible: Carter Lake was always part of Iowa and simply got shifted to "wrong" side of river by sudden course change. [I think John Covert was talking about Legislation to permanently move Carter Lake into Iowa (?) --JSol] ------------------------------ End of TELECOM Digest ********************** -------