{"id":436,"date":"2024-03-11T16:34:09","date_gmt":"2024-03-11T13:34:09","guid":{"rendered":"https:\/\/sms-txt.net\/?p=436"},"modified":"2024-09-05T12:46:08","modified_gmt":"2024-09-05T09:46:08","slug":"ss7-luhitutvustus-3","status":"publish","type":"post","link":"https:\/\/sms-txt.net\/et\/ss7-sms\/ss7-luhitutvustus-3\/","title":{"rendered":"SS7 l\u00fchitutvustus"},"content":{"rendered":"<h1>Signalisatsioonis\u00fcsteem nr 7:<\/h1>\n<p><strong>SS7 - Signalisatsioonis\u00fcsteem # 7 - on varem olnud. Signalisatsioon ja enamik operatsioone, mida saab kasutada, on kokku pandud suure koost\u00f6\u00f6ga operaatorite \/ \/ m\u00fc\u00fcjate \/ standardiorganisatsioonide (CCITT, ETSI, itu t, jne..) .<\/strong><\/p>\n<p><strong>SS7 on tegelikult lihtsalt suletud signalisatsioonis\u00fcsteem. Seda kasutavad s\u00f5lmede (nt naabervahetus, MSC\/VLR, GMSC jne...) juures telekommunikatsiooniv\u00f5rgus.<\/strong><br \/>\n<strong>\u00dchendkuningriigis on see tuntud kui c 7 (CCITT # 7), number 7 koos Common Channel Interoffice Signaling 7 (CCIS7).<\/strong><\/p>\n<p>SS7 protokoll on h\u00e4sti tuntud \u00fclemaailmselt kasutada Q.700-seeria vihjeid 1988. aasta itu t.<\/p>\n<p>IETF (Internet Engineering Task Force) on m\u00e4\u00e4ratlenud SIGTRANi protokollipaketi, mis rakendab SS7 abil \u00fchtlustatud teise, kolmanda ja neljanda taseme protokollid. M\u00f5nikord nimetatakse seda ka Pseudo SS7-ks, see on rivistatud \u00fcmber SCTP (Stream Control Transmission Protocol) transpordimehhanismi, mida kasutatakse Interneti-protokolliga v\u00f5rkudes, nagu Internet.<\/p>\n<h2>SS7 l\u00fchike ajalugu<\/h2>\n<p>Alates 1960ndatest aastatest on \u00fcldkasutatavad telefoniv\u00f5rgud (PSTN) kokku pandud, kasutades analoogtehnoloogiaid ja ka mitmeid ribasiseseid signalisatsioonimeetodeid. Tavap\u00e4raste fikseeritud telefoniteenuste l\u00f5ppkasutajate arvu suurenemine ja kasvav n\u00f5udlus progressiivsete teenuste j\u00e4rele arendas kiiresti vanu protokolle, nagu R1 CAS, mis muutusid teenusepakkujate jaoks atraktiivseks. Isegi ISDN-protokolli revolutsioon osutus suureks sammuks telekommunikatsiooniettev\u00f5tetes, mille k\u00e4igus liigutakse ribasisese signalisatsiooniprotokolli (toonidega, h\u00e4\u00e4ljaamast v\u00f5i keskendunud kanalist varastatud bittidega) ribav\u00e4lisele signalisatsioonile (mis on eraldatud h\u00e4\u00e4lkanalitest) koos s\u00f5numip\u00f5histe primitiividega, mis on kohandatud digitaalsele helisignaalile.<\/p>\n<p>Isegi kui ISDN parandas paljusid vanemate protokollide probleeme, ei ole selle massiline paigaldamine p\u00f5his\u00fcsteemidest kunagi toimunud, j\u00e4ttes seega tarnijatele keerulise seadmete omavahelise t\u00f6\u00f6tava (v\u00f5i seda \u00fcritanud) hierarhia. Kuigi ISDN pakkus lihtsamat lahendust, et pakkuda l\u00f5ppkasutajatele t\u00e4iendavaid lahendusi (nt k\u00f5nede hoidmine, k\u00f5ne edastamine),\" liikus ISDN j\u00e4rk-j\u00e4rgult selle s\u00fcsteemi piiri poole, mis oli l\u00f5ppkasutajale l\u00e4hemal. Peale selle ei rakendanud \u00fckski vahendite pakkuja t\u00f5eliselt ISDNi p\u00f5hispetsifikaate, tekitades seel\u00e4bi s\u00fcsteemiinternetistidele palju naabrusevariante ja puudusi.<\/p>\n<p>Sel ajal olid rahvusvahelised konsortsiumid hakanud keskenduma koordineeritud k\u00f5nede loomise meetodi kasutamisele, et esitada palju teenuseid (sealhulgas neid, mida ISDN ja vanemad protokollid juba toetasid), samuti selleks, et oleks v\u00f5imalik luua uut tarkvara (ettev\u00f5tted ), ilma et oleks vaja parandada kogu v\u00f5rgu struktuuri. SS7 (v\u00f5i Signalisatsioonis\u00fcsteem 7) v\u00f5ttis aastaid varem saada kasutusele kogu planeedil, kuid on n\u00fc\u00fcd saavutada, mida ta oli kavandatud saavutada: pakkuda teile kogu suhtlusstandard, mis pakub palju lahendusi ja millel on v\u00f5ime kasvatada koos avalikkuse n\u00f5udmistega.<\/p>\n<p>Isegi kui rakendati kohalikke versioone ja tehti mitmeid muudatusi selles protokollis, on see signaalimisprotokoll n\u00fc\u00fcdseks \u00fchendatud k\u00f5ige olulisemate telefoniv\u00f5rkudega \u00fcle kogu maailma. See sisaldas ka omadust, mis oli oluline igale kogukonnale \u00fcle kogu maailma: veatolerantsus ja t\u00f6\u00f6kindlus. Kuidas kihiline mitmes funktsionaalses r\u00fchmas, SS7 ehitati, et s\u00f5lmede v\u00f5rgu ei pea t\u00e4itma iga osa protokolli virna, kui nad t\u00f5esti ei n\u00f5ua, et.<\/p>","protected":false},"excerpt":{"rendered":"<p>Signalisatsioonis\u00fcsteem nr 7: SS7 - Signalisatsioonis\u00fcsteem # 7 - on endine. Signalisatsioon ja enamik operatsioone, mida saab kasutada, on kokku pandud suure koost\u00f6\u00f6ga operaatorite \/ \/ m\u00fc\u00fcjate \/ standardiorganisatsioonide (CCITT, ETSI, itu t, jne..) . SS7 on tegelikult ainult tegelikult sulgeda signalisatsioon...<\/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-436","post","type-post","status-publish","format-standard","hentry","category-ss7-sms"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.7 (Yoast SEO v26.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>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\/et\/ss7-sms\/ss7-luhitutvustus-3\/\" \/>\n<meta property=\"og:locale\" content=\"et_EE\" \/>\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 &#8211; Signalling System # 7 &#8211; has been formerly. 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