SS7<\/a> er egentlig bare et lukket signalsystem. Det anvendes af knudepunkter (f.eks. nabolagsb\u00f8rs, MSC\/VLR, GMSC osv.) p\u00e5 et telekommunikationsnetv\u00e6rk.<\/p>\nI Storbritannien er det kendt som c 7 (CCITT # 7), nummer 7 sammen med Common Channel Interoffice Signaling 7 (CCIS7).<\/p>\n
SS7-protokollen er velkendt for verdensomsp\u00e6ndende brug af Q.700-seriens tips fra 1988 af itu t.<\/p>\n
Internet Engineering Task Force (IETF) har defineret SIGTRAN-protokolpakken, der implementerer niveau 2-, 3- og 4-protokoller harmonisk ved hj\u00e6lp af SS7. Den kaldes ogs\u00e5 Pseudo-SS7 og er bygget op omkring transportmekanismen Stream Control Transmission Protocol (SCTP), som bruges p\u00e5 internetprotokolnetv\u00e6rk som internettet.<\/p>\n
<\/p>\n
En kort historie om SS7<\/h2>\n
Fra 1960'erne er offentlige koblede telefonnetv\u00e6rk (PSTN) blevet samlet ved hj\u00e6lp af analoge teknologier og ogs\u00e5 flere in-band-signaleringsmetoder. Stigningen i antallet af almindelige slutbrugere af fastnettelefoni og det stigende behov for avancerede tjenester gjorde hurtigt gamle protokoller som R1 CAS attraktive for tjenesteudbydere. Selv ISDN-protokolrevolutionen viste sig at v\u00e6re et stort skridt i telebranchen, hvor man gik fra en in-band-signaleringsprotokol (med toner, stj\u00e5lne bits fra stemmestationen eller en fokuseret kanal) til out-of-band-signalering (adskilt fra stemmekanaler) med beskedbaserede primitiver, der var tilpasset digital lyd.<\/p>\n
Selv om ISDN l\u00f8ste mange problemer med \u00e6ldre protokoller, skete der aldrig rigtig en masseinstallation af ISDN fra kernesystemerne, hvilket efterlod leverand\u00f8rerne med et omfattende hierarki af udstyr, der arbejdede sammen med hinanden (eller fors\u00f8gte at g\u00f8re det). Selvom ISDN gav en nemmere l\u00f8sning til at levere supplerende l\u00f8sninger (f.eks. venteposition, omstilling) til slutbrugerne\", flyttede ISDN gradvist gr\u00e6nsen for dette system t\u00e6ttere p\u00e5 slutbrugeren. Desuden var der ingen v\u00e6rkt\u00f8jsleverand\u00f8rer, der virkelig implementerede ISDN-grundspecifikationerne og dermed skabte masser af varianter og ulemper for systemintegratorer.<\/p>\n
<\/p>\n
P\u00e5 det tidspunkt var internationale konsortier begyndt at fokusere p\u00e5 at bruge en koordineret metode til at etablere opkald, til at pr\u00e6sentere en masse tjenester (inklusive dem, der allerede blev underst\u00f8ttet af ISDN og \u00e6ldre protokoller) ogs\u00e5 for at kunne bygge ny software (virksomheder) uden at skulle forbedre den fulde netv\u00e6rksstruktur. SS7 (eller Signaling System 7) tog flere \u00e5r om at blive implementeret over hele verden, men opn\u00e5r nu det, den var designet til at opn\u00e5: at give dig en samlet kommunikationsstandard, der tilbyder mange l\u00f8sninger og har evnen til at vokse med offentlighedens krav.<\/p>\n
Selv da lokale versioner blev implementeret, og der skete adskillige \u00e6ndringer af denne protokol, indg\u00e5r denne signalprotokol nu i de mest betydningsfulde telefonnetv\u00e6rk over hele kloden. Den indeholdt ogs\u00e5 en egenskab, der var vigtig for alle samfund i hele verden: fejltolerance og robusthed. SS7 blev bygget op i flere funktionelle grupper, s\u00e5 noderne i netv\u00e6rket ikke beh\u00f8ver at udf\u00f8re alle dele af protokolstakken, hvis de virkelig ikke har brug for det.<\/p>","protected":false},"excerpt":{"rendered":"
Signalsystem nr. 7: SS7 - Signalsystem # 7 - har v\u00e6ret tidligere. Signaleringen og de fleste af de operationer, der kan bruges, blev samlet med en stor del samarbejde fra operat\u00f8rer \/ \/ leverand\u00f8rer \/ standardorganisationer (CCITT, ETSI, itu t osv.) . SS7 er egentlig bare en lukket signalering...<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-454","post","type-post","status-publish","format-standard","hentry","category-ss7-sms"],"yoast_head":"\n
A brief introduction of SS7<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sms-txt.net\/da\/ss7-sms\/en-kort-introduktion-til-ss7-2\/\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A brief introduction of SS7\" \/>\n<meta property=\"og:description\" content=\"Signaling System No. 7: SS7 – Signalling System # 7 – has been formerly. The signalling and most of the surgeries which can be used was assembled with a great deal of cooperation from Operators \/ \/ Vendors \/ Standard organisations (CCITT, ETSI, itu t, etc..) . SS7 is really just actually a shut signalling...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sms-txt.net\/da\/ss7-sms\/en-kort-introduktion-til-ss7-2\/\" \/>\n<meta property=\"og:site_name\" content=\"SS7 Hacking\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-25T04:18:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-09-05T09:46:47+00:00\" \/>\n<meta name=\"author\" content=\"ss7\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"ss7\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/\"},\"author\":{\"name\":\"ss7\",\"@id\":\"https:\/\/sms-txt.net\/#\/schema\/person\/fa482bf9132db58e46bb9c9df2d73be0\"},\"headline\":\"A brief introduction of SS7\",\"datePublished\":\"2024-04-25T04:18:37+00:00\",\"dateModified\":\"2024-09-05T09:46:47+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/\"},\"wordCount\":527,\"publisher\":{\"@id\":\"https:\/\/sms-txt.net\/#organization\"},\"articleSection\":[\"SS7\"],\"inLanguage\":\"da-DK\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/\",\"url\":\"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/\",\"name\":\"A brief introduction of SS7\",\"isPartOf\":{\"@id\":\"https:\/\/sms-txt.net\/#website\"},\"datePublished\":\"2024-04-25T04:18:37+00:00\",\"dateModified\":\"2024-09-05T09:46:47+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/#breadcrumb\"},\"inLanguage\":\"da-DK\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/sms-txt.net\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"A brief introduction of SS7\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/sms-txt.net\/#website\",\"url\":\"https:\/\/sms-txt.net\/\",\"name\":\"SS7 Hacking\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/sms-txt.net\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/sms-txt.net\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"da-DK\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/sms-txt.net\/#organization\",\"name\":\"SS7\",\"url\":\"https:\/\/sms-txt.net\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"da-DK\",\"@id\":\"https:\/\/sms-txt.net\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/yellow-jaguar-454368.hostingersite.com\/wp-content\/uploads\/2020\/05\/logo.jpg\",\"contentUrl\":\"https:\/\/yellow-jaguar-454368.hostingersite.com\/wp-content\/uploads\/2020\/05\/logo.jpg\",\"width\":866,\"height\":680,\"caption\":\"SS7\"},\"image\":{\"@id\":\"https:\/\/sms-txt.net\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/sms-txt.net\/#\/schema\/person\/fa482bf9132db58e46bb9c9df2d73be0\",\"name\":\"ss7\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"En kort introduktion til SS7","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sms-txt.net\/da\/ss7-sms\/en-kort-introduktion-til-ss7-2\/","og_locale":"da_DK","og_type":"article","og_title":"A brief introduction of SS7","og_description":"Signaling System No. 7: SS7 – Signalling System # 7 – has been formerly. The signalling and most of the surgeries which can be used was assembled with a great deal of cooperation from Operators \/ \/ Vendors \/ Standard organisations (CCITT, ETSI, itu t, etc..) . SS7 is really just actually a shut signalling...","og_url":"https:\/\/sms-txt.net\/da\/ss7-sms\/en-kort-introduktion-til-ss7-2\/","og_site_name":"SS7 Hacking","article_published_time":"2024-04-25T04:18:37+00:00","article_modified_time":"2024-09-05T09:46:47+00:00","author":"ss7","twitter_card":"summary_large_image","twitter_misc":{"Written by":"ss7","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/#article","isPartOf":{"@id":"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/"},"author":{"name":"ss7","@id":"https:\/\/sms-txt.net\/#\/schema\/person\/fa482bf9132db58e46bb9c9df2d73be0"},"headline":"A brief introduction of SS7","datePublished":"2024-04-25T04:18:37+00:00","dateModified":"2024-09-05T09:46:47+00:00","mainEntityOfPage":{"@id":"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/"},"wordCount":527,"publisher":{"@id":"https:\/\/sms-txt.net\/#organization"},"articleSection":["SS7"],"inLanguage":"da-DK"},{"@type":"WebPage","@id":"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/","url":"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/","name":"En kort introduktion til SS7","isPartOf":{"@id":"https:\/\/sms-txt.net\/#website"},"datePublished":"2024-04-25T04:18:37+00:00","dateModified":"2024-09-05T09:46:47+00:00","breadcrumb":{"@id":"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/#breadcrumb"},"inLanguage":"da-DK","potentialAction":[{"@type":"ReadAction","target":["https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/sms-txt.net\/ss7-sms\/a-brief-introduction-of-ss7-2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/sms-txt.net\/"},{"@type":"ListItem","position":2,"name":"A brief introduction of SS7"}]},{"@type":"WebSite","@id":"https:\/\/sms-txt.net\/#website","url":"https:\/\/sms-txt.net\/","name":"SS7-hacking","description":"","publisher":{"@id":"https:\/\/sms-txt.net\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/sms-txt.net\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"da-DK"},{"@type":"Organization","@id":"https:\/\/sms-txt.net\/#organization","name":"SS7","url":"https:\/\/sms-txt.net\/","logo":{"@type":"ImageObject","inLanguage":"da-DK","@id":"https:\/\/sms-txt.net\/#\/schema\/logo\/image\/","url":"https:\/\/yellow-jaguar-454368.hostingersite.com\/wp-content\/uploads\/2020\/05\/logo.jpg","contentUrl":"https:\/\/yellow-jaguar-454368.hostingersite.com\/wp-content\/uploads\/2020\/05\/logo.jpg","width":866,"height":680,"caption":"SS7"},"image":{"@id":"https:\/\/sms-txt.net\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/sms-txt.net\/#\/schema\/person\/fa482bf9132db58e46bb9c9df2d73be0","name":"ss7"}]}},"_links":{"self":[{"href":"https:\/\/sms-txt.net\/da\/wp-json\/wp\/v2\/posts\/454","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sms-txt.net\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sms-txt.net\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sms-txt.net\/da\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sms-txt.net\/da\/wp-json\/wp\/v2\/comments?post=454"}],"version-history":[{"count":0,"href":"https:\/\/sms-txt.net\/da\/wp-json\/wp\/v2\/posts\/454\/revisions"}],"wp:attachment":[{"href":"https:\/\/sms-txt.net\/da\/wp-json\/wp\/v2\/media?parent=454"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sms-txt.net\/da\/wp-json\/wp\/v2\/categories?post=454"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sms-txt.net\/da\/wp-json\/wp\/v2\/tags?post=454"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}