{"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":"o-scurta-prezentare-a-ss7-3","status":"publish","type":"post","link":"https:\/\/sms-txt.net\/ro\/ss7-sms\/o-scurta-prezentare-a-ss7-3\/","title":{"rendered":"O scurt\u0103 prezentare a SS7"},"content":{"rendered":"<h1>Sistemul de semnalizare nr. 7:<\/h1>\n<p><strong>SS7 - Sistemul de semnalizare # 7 - a fost anterior. Semnalizarea \u0219i majoritatea opera\u021biilor care pot fi utilizate au fost asamblate cu o mare cooperare din partea operatorilor \/ \/ furnizorilor \/ organiza\u021biilor de standardizare (CCITT, ETSI, itu t, etc..) .<\/strong><\/p>\n<p><strong>SS7 este de fapt doar un sistem de semnalizare \u00eenchis. Este utilizat de noduri (de exemplu, central\u0103 de cartier, MSC\/VLR, GMSC etc.) \u00eentr-o re\u021bea de telecomunica\u021bii.<\/strong><br \/>\n<strong>\u00cen Regatul Unit este cunoscut sub numele de c 7 (CCITT # 7), num\u0103rul 7 \u00eempreun\u0103 cu semnalizarea interioar\u0103 de canal comun 7 (CCIS7).<\/strong><\/p>\n<p>Protocolul SS7 este bine cunoscut pentru utilizarea la nivel mondial de c\u0103tre seria Q.700 de sfaturi din 1988 de c\u0103tre itu t.<\/p>\n<p>Internet Engineering Task Force (IETF) a definit pachetul de protocoale SIGTRAN care implementeaz\u0103 armonios protocoalele de nivel 2, 3 \u0219i 4 utiliz\u00e2nd SS7. Numit uneori \u0219i Pseudo SS7, acesta este aliniat \u00een jurul mecanismului de transport Stream Control Transmission Protocol (SCTP), care urmeaz\u0103 s\u0103 fie utilizat \u00een re\u021belele cu protocol internet, cum ar fi internetul.<\/p>\n<h2>O scurt\u0103 istorie a SS7<\/h2>\n<p>\u00cencep\u00e2nd cu anii 1960, re\u021belele telefonice publice comutate (PSTN) au fost asamblate utiliz\u00e2nd tehnologii analogice \u0219i, de asemenea, mai multe metode de semnalizare \u00een band\u0103. Cre\u0219terea num\u0103rului de utilizatori finali de telefonie fix\u0103 obi\u0219nuit\u0103 \u0219i cerin\u021ba tot mai mare de servicii progresive au f\u0103cut ca protocoalele vechi, cum ar fi R1 CAS, s\u0103 devin\u0103 atractive pentru furnizorii de servicii. Chiar \u0219i revolu\u021bia protocolului ISDN s-a dovedit a fi un pas important \u00een domeniul telecomunica\u021biilor, trec\u00e2nd de la un protocol de semnalizare \u00een band\u0103 (cu tonuri, bi\u021bi fura\u021bi de la sta\u021bia vocal\u0103 sau canalul concentrat) la semnalizarea \u00een afara benzii (separat\u0103 de canalele vocale) cu primitive bazate pe mesaje adaptate pentru audio digital.<\/p>\n<p>Chiar dac\u0103 ISDN a remediat multe probleme ale protocoalelor mai vechi, instalarea sa \u00een mas\u0103 din sistemele de baz\u0103 nu a avut loc niciodat\u0103, l\u0103s\u00e2nd astfel furnizorii cu o ierarhie elaborat\u0103 de echipamente care func\u021bioneaz\u0103 \u00eentre ele (sau \u00eencearc\u0103 s\u0103 func\u021bioneze). Chiar dac\u0103 ISDN a oferit o solu\u021bie mai u\u0219oar\u0103 pentru furnizarea de solu\u021bii suplimentare (de exemplu, re\u021binerea apelurilor, transferul apelurilor) c\u0103tre utilizatorii finali\", ISDN a migrat progresiv spre grani\u021ba acestui sistem mai aproape de utilizatorul final. \u00cen plus, niciun furnizor de instrumente nu a implementat cu adev\u0103rat specifica\u021biile de baz\u0103 ISDN, cre\u00e2nd astfel o mul\u021bime de variante de vecin\u0103tate \u0219i dezavantaje pentru integratorii de sisteme.<\/p>\n<p>\u00cen acel moment, consor\u021biile interna\u021bionale au \u00eenceput s\u0103 se concentreze pe utilizarea unei metode coordonate de stabilire a apelurilor, pentru a prezenta o mul\u021bime de servicii (inclusiv cele deja suportate de ISDN \u0219i protocoalele mai vechi), de asemenea, pentru a putea construi noi software-uri (companii ) f\u0103r\u0103 a fi nevoie s\u0103 \u00eembun\u0103t\u0103\u021beasc\u0103 \u00eentreaga structur\u0103 a re\u021belei. SS7 (sau Signaling System 7) a avut nevoie de ani mai devreme pentru a fi implementat pe \u00eentreaga planet\u0103, dar acum realizeaz\u0103 ceea ce a fost conceput s\u0103 realizeze: s\u0103 v\u0103 ofere un standard total de comunicare care s\u0103 ofere multe solu\u021bii \u0219i s\u0103 aib\u0103 capacitatea de a cultiva cu cerin\u021bele publicului.<\/p>\n<p>Chiar \u0219i atunci c\u00e2nd au fost implementate versiuni locale \u0219i au avut loc numeroase modific\u0103ri ale acestui protocol, acest protocol de semnalizare se al\u0103tur\u0103 acum celor mai importante re\u021bele telefonice din \u00eentreaga lume. De asemenea, a inclus o caracteristic\u0103 care a fost semnificativ\u0103 pentru fiecare comunitate din \u00eentreaga lume: toleran\u021ba la erori \u0219i robuste\u021bea. Fiind stratificat \u00een mai multe grupuri func\u021bionale, SS7 a fost construit pentru ca nodurile din re\u021bea s\u0103 nu fie nevoite s\u0103 execute fiecare por\u021biune a stivei de protocoale dac\u0103 nu au nevoie.<\/p>","protected":false},"excerpt":{"rendered":"<p>Sistemul de semnalizare nr. 7: SS7 - Signalling System # 7 - a fost anterior. Semnalizarea \u0219i majoritatea opera\u021biilor care pot fi utilizate au fost asamblate cu o mare cooperare din partea operatorilor \/ \/ v\u00e2nz\u0103torilor \/ organiza\u021biilor de standardizare (CCITT, ETSI, itu t, etc..) . SS7 este de fapt doar o semnalizare \u00eenchis\u0103...<\/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\/ro\/ss7-sms\/o-scurta-prezentare-a-ss7-3\/\" \/>\n<meta property=\"og:locale\" content=\"ro_RO\" \/>\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. 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..) . 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