{"id":1713,"date":"2013-11-19T14:18:16","date_gmt":"2013-11-19T14:18:16","guid":{"rendered":"http:\/\/networkeffects.ca\/?p=1713"},"modified":"2013-11-19T15:11:53","modified_gmt":"2013-11-19T15:11:53","slug":"happy-50th-dtmf","status":"publish","type":"post","link":"https:\/\/networkeffects.ca\/?p=1713","title":{"rendered":"Happy 50th DTMF"},"content":{"rendered":"<div class='e-content'>\n<p style=\"text-align: left;\"><object width=\"450\" height=\"450\" classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" codebase=\"http:\/\/download.macromedia.com\/pub\/shockwave\/cabs\/flash\/swflash.cab#version=6,0,40,0\"><param name=\"src\" value=\"https:\/\/dl.dropboxusercontent.com\/u\/2251996\/6t2e.swf\" \/><embed width=\"450\" height=\"450\" type=\"application\/x-shockwave-flash\" src=\"https:\/\/dl.dropboxusercontent.com\/u\/2251996\/6t2e.swf\" \/><\/object><\/p>\n<p>1\u00a0\u00a0 1\u00a0\u00a0 2\u00a0\u00a0 1\u00a0\u00a0 6\u00a0\u00a0 3-\u00a0\u00a0 1\u00a0\u00a0 1\u00a0\u00a0 2\u00a0\u00a0 1\u00a0\u00a0 9\u00a0\u00a0 6<\/p>\n<p>1\u00a0\u00a0 1\u00a0\u00a0 #\u00a0\u00a0 9\u00a0\u00a0 6\u00a0\u00a0 3\u00a0\u00a0 2-\u00a0\u00a0 #\u00a0\u00a0 #\u00a0\u00a0 9\u00a0\u00a0 6\u00a0\u00a0 9\u00a0\u00a0 6<\/p>\n<p><span style=\"color: #ffffff;\">.<\/span><\/p>\n<p>The DTMF generator above has the ABCD key sequence from the\u00a0<a href=\"http:\/\/en.wikipedia.org\/wiki\/Silver_box\" target=\"_blank\">Silver Box<\/a>\u00a0&#8211;\u00a0<a href=\"http:\/\/falsedoor.com\/txt\/Phreaks_Only\/Zen%20and%20the%20Art%20of%20Fone%20Phreaking%20%6097%20.txt\" target=\"_blank\">phone phreak phavorite<\/a>.<\/p>\n<p><span style=\"color: #ffffff;\">.<\/span><\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"4\">\n<tbody>\n<tr>\n<td><\/td>\n<td style=\"text-align: left;\">1209 Hz<\/td>\n<td>1336 Hz<\/td>\n<td>1477 Hz<\/td>\n<\/tr>\n<tr>\n<td>697 Hz<\/td>\n<td align=\"center\">1<\/td>\n<td align=\"center\">2<\/td>\n<td align=\"center\">3<\/td>\n<\/tr>\n<tr>\n<td>770 Hz<\/td>\n<td align=\"center\">4<\/td>\n<td align=\"center\">5<\/td>\n<td align=\"center\">6<\/td>\n<\/tr>\n<tr>\n<td>852 Hz<\/td>\n<td align=\"center\">7<\/td>\n<td align=\"center\">8<\/td>\n<td align=\"center\">9<\/td>\n<\/tr>\n<tr>\n<td>941 Hz<\/td>\n<td align=\"center\">*<\/td>\n<td align=\"center\">0<\/td>\n<td align=\"center\">#<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><span style=\"color: #ffffff;\">\u00a0.<\/span><br \/>\n<iframe loading=\"lazy\" src=\"\/\/www.youtube.com\/embed\/5t5na44D0Dw?rel=0\" frameborder=\"0\" width=\"420\" height=\"315\"><\/iframe><\/p>\n<p><span style=\"color: #ffffff;\">.<\/span><br \/>\n<a href=\"http:\/\/en.wikipedia.org\/wiki\/Dual-tone_multi-frequency_signaling\" target=\"_blank\">DTMF signalling<\/a> is celebrating its 50th anniversary this week &#8211; let&#8217;s celebrate with <a href=\"http:\/\/www.michaelv.org\/projects\/telephone\/\" target=\"_blank\">a little music<\/a>.<\/p>\n<p><span style=\"color: #ffffff;\">.<\/span><\/p>\n<p><a href=\"https:\/\/archive.org\/details\/nt063\">Touch Tone via Archive.org<\/a><br \/>\n<iframe loading=\"lazy\" src=\"https:\/\/archive.org\/embed\/nt063\" frameborder=\"0\" width=\"500\" height=\"30\"><\/iframe><\/div>\n","protected":false},"excerpt":{"rendered":"<p>1\u00a0\u00a0 1\u00a0\u00a0 2\u00a0\u00a0 1\u00a0\u00a0 6\u00a0\u00a0 3-\u00a0\u00a0 1\u00a0\u00a0 1\u00a0\u00a0 2\u00a0\u00a0 1\u00a0\u00a0 9\u00a0\u00a0 6 1\u00a0\u00a0 1\u00a0\u00a0 #\u00a0\u00a0 9\u00a0\u00a0 6\u00a0\u00a0 3\u00a0\u00a0 2-\u00a0\u00a0 #\u00a0\u00a0 #\u00a0\u00a0 9\u00a0\u00a0 6\u00a0\u00a0 9\u00a0\u00a0 6 . The DTMF generator above has the ABCD key sequence from the\u00a0Silver Box\u00a0&#8211;\u00a0phone phreak phavorite. . 1209 Hz 1336 Hz 1477 Hz 697 Hz 1 2 3 770 Hz 4&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"webmentions_disabled_pings":false,"webmentions_disabled":false,"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":3,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":""},"categories":[3],"tags":[8,31,76],"class_list":["post-1713","post","type-post","status-publish","format-standard","category-play","tag-audio","tag-music","tag-sound","h-entry","hentry","kind-"],"kind":false,"_links":{"self":[{"href":"https:\/\/networkeffects.ca\/index.php?rest_route=\/wp\/v2\/posts\/1713","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/networkeffects.ca\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/networkeffects.ca\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/networkeffects.ca\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/networkeffects.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1713"}],"version-history":[{"count":22,"href":"https:\/\/networkeffects.ca\/index.php?rest_route=\/wp\/v2\/posts\/1713\/revisions"}],"predecessor-version":[{"id":1735,"href":"https:\/\/networkeffects.ca\/index.php?rest_route=\/wp\/v2\/posts\/1713\/revisions\/1735"}],"wp:attachment":[{"href":"https:\/\/networkeffects.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/networkeffects.ca\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/networkeffects.ca\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}