{"id":13109,"date":"2020-10-08T19:45:46","date_gmt":"2020-10-08T19:45:46","guid":{"rendered":"https:\/\/www.upjs.sk\/testovacia\/root\/analyza-voip\/"},"modified":"2020-10-08T19:45:46","modified_gmt":"2020-10-08T19:45:46","slug":"analyza-voip","status":"publish","type":"page","link":"https:\/\/www.upjs.sk\/testovacia\/aio\/analyza-voip\/","title":{"rendered":"Anal\u00fdza realiz\u00e1cie projektu VoIP – IP telef\u00f3nie na UPJ\u0160"},"content":{"rendered":"

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\tStru\u010dn\u00e1 charakteristika stavu pred realiz\u00e1ciou projektu<\/strong><\/div>\n

\tUniverzita P. J. \u0160af\u00e1rika v s\u00fa\u010dasnosti disponuje kvalitnou WAN\/MAN infra\u0161trukt\u00farou. V\u00e4\u010d\u0161ina prepojen\u00ed je realizovan\u00e1 optick\u00fdm k\u00e1blom, celkovo ide o 19 budov v Ko\u0161iciach a 1 budovu v Ro\u017e\u0148ave.\u00a0
\tT\u00e1to infra\u0161trukt\u00fara nadv\u00e4zuje na akademick\u00fa sie\u0165 Sanet II uveden\u00e1 do prev\u00e1dzky ako vysokor\u00fdchlostn\u00e1 akademick\u00e1 d\u00e1tov\u00e1 sie\u0165 s pripojen\u00edm na transeur\u00f3psku akademick\u00fa sie\u0165 GEANT, umo\u017e\u0148uje univerzite vyu\u017e\u00edva\u0165 Gigabitov\u00fa r\u00fdchlos\u0165 a vytv\u00e1ra podmienky pre technol\u00f3gie a slu\u017eby novej gener\u00e1cie – help desk, contact centra, integr\u00e1ciu VoIP a PC, Productivity Solutions, Voice Mail, virtual Conference room a \u010fal\u0161ie.<\/p>\n

\tNajv\u00e4\u010d\u0161ou pridanou hodnotou je mo\u017enos\u0165 vytvorenia multifunk\u010dnej siete t. j. sie\u0165ovej infra\u0161trukt\u00fary, ktor\u00e1 dok\u00e1\u017ee s\u00fa\u010dasne pren\u00e1\u0161a\u0165 d\u00e1ta, hlas a video, a transparentne komunikova\u0165 s jednotnou telef\u00f3nnou sie\u0165ou.<\/div>\n
\tSie\u0165 UPJ\u0160 u\u017e dnes sp\u013a\u0148a z\u00e1kladn\u00e9 po\u017eiadavky na multifunk\u010dn\u00e9 siete, ako s\u00fa, plne prep\u00ednan\u00e1 LAN infra\u0161trukt\u00fara 10\/100BaseTX Ethernet, podpora autoselekcie prenosovej r\u00fdchlosti a duplexn\u00e9ho re\u017eimu, podpora 802.1Q a 802.1p, m\u00e1 dostatok vo\u013en\u00fdch pr\u00edstupov\u00fdch portov pre IP telef\u00f3ny aj PC, podporu viacer\u00fdch v\u00fdstupn\u00fdch front v HW\u00a0 a podporu mo\u017enosti v\u00fdstupnej fronty so striktnou prioritou.<\/div>\n
\tV budov\u00e1ch je dvojmo s d\u00e1tov\u00fdmi rozvodmi vybudovan\u00e1 telef\u00f3nna kabel\u00e1\u017e. Telef\u00f3nna kabel\u00e1\u017e je star\u00e1 nieko\u013eko desiatok rokov. Okrem Pr\u00e1vnickej fakulty UPJ\u0160, kde je telef\u00f3nna \u00fastred\u0148a novej gener\u00e1cie (cca 4-5 rokov star\u00e1) a Fakulty verejnej spr\u00e1vy UPJ\u0160, kde je nov\u00e1 \u00fastred\u0148a, s\u00fa v\u0161etky objekty UPJ\u0160 vybaven\u00e9 star\u00fdmi \u00fastred\u0148ami cca 10 rokov a viac. Vo viacer\u00fdch objektoch s\u00fa \u00fastredne star\u0161ie ako 20 rokov.<\/div>\n
\tNajstar\u0161ie \u00fastredne neumo\u017e\u0148uj\u00fa be\u017en\u00e9 slu\u017eby a vy\u017eaduj\u00fa spojovate\u013eky navy\u0161e. S\u00fa\u010dasn\u00fd stav viedol k tomu, \u017ee v\u00e4\u010d\u0161ina telef\u00f3nnych liniek je priveden\u00e1 do pracov\u00edsk univerzity priamo, mimo \u00fastredne, \u010d\u00edm nie je mo\u017en\u00e9 vyu\u017ei\u0165 z d\u00f4vodu viackapacitn\u00e9ho pripojenia z\u013eavnen\u00e9 resp. v\u00fdhodnej\u0161ie programy ST a t\u00fdm zn\u00ed\u017ei\u0165 rozpo\u010det univerzity.<\/div>\n
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\tRealiz\u00e1cia\u00a0 projektu<\/strong><\/div>\n
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\tPrv\u00fdm hlavn\u00fdm cie\u013eom projektu bolo\u00a0rie\u0161enie hlasovej\u00a0 prev\u00e1dzky na univerzite t. j. telef\u00f3nnej\u00a0\u00a0 komunik\u00e1cie na zastaral\u00fdch zariadeniach, ktor\u00e9 sp\u00f4sobuj\u00fa probl\u00e9my pri komunik\u00e1cii v r\u00e1mci univerzity i pri interakcii s okol\u00edm, pri\u010dom pri rie\u0161eni vyu\u017ei\u0165 mo\u017enosti s\u00fa\u010dasnej infra\u0161trukt\u00fary .<\/div>\n
\tDruh\u00fdm hlavn\u00fdm cie\u013eom projektu bolo da\u0165 k dispoz\u00edcii ucelen\u00fd projekt, vysoko efekt\u00edvne a do bud\u00facnosti otvoren\u00e9 rie\u0161enie, ktor\u00e9 poskytne univerzite na jednej strane lep\u0161iu funk\u010dnos\u0165 a spo\u013eahlivos\u0165, vysok\u00fd pr\u00ednos a unik\u00e1tne vlastnosti ne\u017e klasick\u00e9 rie\u0161enie hlasovej\u00a0 prev\u00e1dzky, na druhej strane v\u00fdrazne u\u0161etr\u00ed investi\u010dn\u00e9 a prev\u00e1dzkov\u00e9 n\u00e1klady.<\/div>\n
\tCentrom IP telef\u00f3nie je IP telef\u00f3nna \u00fastred\u0148a tvoren\u00e1 SW: Call Manager na b\u00e1ze SIP protokolu, ktor\u00fd umo\u017e\u0148uje obsluhu 1000 IP telef\u00f3nov. V pr\u00edpade \u010fal\u0161ieho roz\u0161irovania IP telef\u00f3nie bude tento server roz\u0161\u00edren\u00fd pod\u013ea potreby \u010fal\u0161\u00edmi servermi, s ktor\u00fdmi vytvor\u00ed cluster IP \u00fastredn\u00ed.<\/div>\n
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\tAby bolo mo\u017en\u00e9 zabezpe\u010di\u0165 prepojenie IP telef\u00f3nie s klasickou telef\u00f3nnou sie\u0165ou, bolo potrebn\u00e9 in\u0161talova\u0165 tzv. Voice gateway, \u010do je v podstate smerova\u010d IP siete, ktor\u00fd m\u00e1 prepojenie s anal\u00f3govou tlf. sie\u0165ou \u2013 bu\u010f pripojenie k existuj\u00facej tlf. \u00fastredni, alebo priamo k JTS.<\/div>\n
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\tV\u00a0s\u00favislosti s\u00a0realiz\u00e1ciou projektu VoIP – IP telef\u00f3nie na UPJ\u0160 koncom roka 2004 boli dod\u00e1vate\u013eskou firmou TTC Telekom identifikovan\u00e9 technick\u00e9 prek\u00e1\u017eky br\u00e1niace plnej funk\u010dnosti realizovan\u00e9ho projektu.\u00a0<\/div>\n
\tKonkr\u00e9tne ide o\u00a0zastaral\u00e9 vybavenie \u00fastredn\u00ed Slovak Telecom UE 201 v\u00a0univerzitn\u00fdch lokalit\u00e1ch Rektor\u00e1t UPJ\u0160 \u0160rob\u00e1rova 2 a\u00a0Dekan\u00e1t Pr\u00edrodovedeckej fakulty\u00a0UPJ\u0160 Moyzesova 16. CIaKT UPJ\u0160 navrhlo vylep\u0161i\u0165 konfigur\u00e1ciu \u00fastredn\u00ed a\u00a0z\u00edska\u0165 tak rozhranie s\u00a0kvalitnej\u0161\u00edmi technick\u00fdmi parametrami ako navrhoval projekt. Perspekt\u00edvne bola realizovan\u00e1 in\u0161tal\u00e1cia \u2013 upgrade \u00fastredne aj v\u00a0lokalite Pr\u00edrodovedeckej\u00a0fakulty UPJ\u0160 Park Angelinum 9. Dodato\u010dne po s\u00fahlase od Slovak Telecom ako vlastn\u00edka \u00fastredni bolo potrebn\u00e9\u00a0 doobjedna\u0165 tri k\u013eu\u010dovacie pren\u00e1\u0161a\u010de s\u00a0E+M\u00a0 rozhran\u00edm u\u00a0ich v\u00fdrobcu Tesla L. Hr\u00e1dok. Ten ich\u00a0 dodal v\u00a0priebehu febru\u00e1ra 2005 na z\u00e1klade objedn\u00e1vok\u00a0 z decembra 2004.<\/div>\n
\tMoment\u00e1lne je projekt VoIP – IP telef\u00f3nie po dodan\u00ed jednotliv\u00fdch komponentov (IP telef\u00f3ny, Call Managera, gateways-br\u00e1n a\u00a0softf\u00f3nov) funk\u010dn\u00fd na Pr\u00e1vnickej fakulte UPJ\u0160 a\u00a0po dodan\u00ed a\u00a0in\u0161tal\u00e1cii spom\u00ednan\u00fdch k\u013e\u00fa\u010dovac\u00edch pren\u00e1\u0161a\u010dov je zfunk\u010dnen\u00fd aj na Rektor\u00e1te UPJ\u0160 a\u00a0Dekan\u00e1te\u00a0Pr\u00edrodovedeckej fakulty\u00a0UPJ\u0160. K\u00a0dne\u0161n\u00e9mu d\u0148u cel\u00fd syst\u00e9m pozost\u00e1va z\u00a0308 zaregistrovan\u00fdch \u00fa\u010dastn\u00edkov<\/strong> tejto hlasovej slu\u017eby.<\/div>\n
\tV\u0161etky IP telef\u00f3ny pou\u017eit\u00e9 v projekte s\u00fa \u0161tandardn\u00e9 Cisco IP telef\u00f3ny, ktor\u00e9 sa l\u00ed\u0161ia akur\u00e1t komfortom ovl\u00e1dania a poskytovan\u00fdmi nad\u0161tandardn\u00fdmi slu\u017ebami.<\/div>\n
\tVi\u010f. Pr\u00edru\u010dka pou\u017eivate\u013ea IP telef\u00f3nu:<\/strong> voip.upjs.sk\/howto.php<\/a><\/div>\n
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\tIP telef\u00f3ny s\u00fa nain\u0161talovan\u00e9 na t\u00fdchto pracovisk\u00e1ch:<\/div>\n
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\tRektor\u00e1t UPJ\u0160<\/div>\n
\t\u0160tudentsk\u00e9 domovy a jed\u00e1lne\u00a0UPJ\u0160<\/div>\n
\tUniverzitn\u00e1 kni\u017enica UPJ\u0160<\/div>\n
\tBotanick\u00e1\u00a0z\u00e1hrada UPJ\u0160<\/div>\n
\tCentrum informa\u010dn\u00fdch a komunika\u010dn\u00fdch technol\u00f3gi\u00ed UPJ\u0160<\/div>\n
\tLek\u00e1rska fakulta\u00a0UPJ\u0160<\/div>\n
\tPr\u00e1vnick\u00e1 fakulta\u00a0UPJ\u0160<\/div>\n
\tFakulta verejnej spr\u00e1vy UPJ\u0160.<\/div>\n
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\tPo \u00faspe\u0161nej realiz\u00e1cii I. etapy VoIP – IP telef\u00f3nie navrhujeme v\u00a0pokra\u010dovan\u00ed projektu aj v\u00a0\u010fal\u0161om obdob\u00ed v\u00a0t\u00fdch lokalit\u00e1ch UPJ\u0160 kde je predpoklad u\u0161etrenia n\u00e1kladov na hovorn\u00e9 v r\u00e1mci UPJ\u0160.<\/div>\n
\tPo dorie\u0161en\u00ed vlastn\u00edckych vz\u0165ahov v r\u00e1mci are\u00e1lu Lek\u00e1rskej\u00a0fakulty UPJ\u0160 a\u00a0Fakultnej nemocnice L. Pasteura by bolo \u017eiad\u00face premostenie \u00fastredn\u00ed v\u00a0lokalite Rastislavova a\u00a0Trieda SNP s\u00a0IP sie\u0165ou na UPJ\u0160 pomocou IP br\u00e1n. Na pracovisku v\u00a0Ro\u017e\u0148ave je \u017eiad\u00face zfunk\u010dni\u0165 in\u0161tal\u00e1cie softf\u00f3nov a\u00a0zn\u00ed\u017ei\u0165 tak n\u00e1kladovos\u0165 na hovorn\u00e9.<\/div>\n
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\tPodobne je mo\u017en\u00e9 pripoji\u0165 digit\u00e1lnu \u00fastred\u0148u na\u00a0Fakultu verejnej spr\u00e1vy\u00a0 UPJ\u0160 na Popradskej a\u00a0spom\u00ednan\u00fa lokalitu Pr\u00edrodovedeckej\u00a0fakulty UPJ\u0160 na Park Angelinum 9. V\u00a0t\u00fdch lokalit\u00e1ch, kde je m\u00e1lo klapiek pripojen\u00fdch k\u00a0mal\u00fdm zastaral\u00fdm \u00fastredniam a\u00a0poplatky za nich s\u00fa ve\u013ek\u00e9 navrhujeme zru\u0161enie \u00fastredn\u00ed a\u00a0in\u0161tal\u00e1ciu IP telef\u00f3nov resp. v\u00a0kombin\u00e1cii so softf\u00f3nmi. Anal\u00fdzu \u00fastredn\u00ed na UPJ\u0160 s\u00a0ich technickou \u0161pecifik\u00e1ciou (typov\u00e9 ozna\u010denie, d\u00e1tum dodania, po\u010det klapiek, v\u00fd\u0161ka poplatkov a\u00a0pod.) by mal zabezpe\u010di\u0165 pr\u00edslu\u0161n\u00fd \u00fatvar R-UPJ\u0160.<\/div>\n
\tPo takejto anal\u00fdze sa bude konkr\u00e9tizova\u0165 \u0161pecifik\u00e1cia podkladov pre \u010fal\u0161iu etapu IP telef\u00f3nie na UPJ\u0160.<\/div>\n
\tT\u00fdm by sa dosiahlo pilotn\u00e9 rozmiestnenie komponentov IP telef\u00f3nie na celej UPJ\u0160 a\u00a0vytvorenie podmienok na pln\u00e9 vyu\u017eitie datovej a\u00a0telef\u00f3nnej siete na vz\u00e1jomn\u00fa transparentn\u00fa komunik\u00e1ciu klientov jednotliv\u00fdch sieti.<\/div>\n
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\tAplik\u00e1cia VoIP\u00a0– IP telef\u00f3nia v\u00a0\u010fal\u0161ej etape umo\u017en\u00ed podstatne zn\u00ed\u017ei\u0165 n\u00e1klady v r\u00e1mci lok\u00e1lnej metropolitnej siete, ale aj na medzimestsk\u00e9 telef\u00f3nne hovory v\u00a0sieti akademick\u00fdch in\u0161tit\u00facii.<\/div>\n
\tDosiahli sme zvidite\u013enenie na\u0161ej IP telef\u00f3nnej infra\u0161trukt\u00fary navonok v\u00a0sieti SANET tak, \u017ee je\u00a0 dosiahnute\u013en\u00e1 cez Call Manager z\u00a0ostatn\u00fdch metropolitn\u00fdch akademick\u00fdch sieti u\u00a0n\u00e1s ale aj vo svete.<\/div>\n
\tN\u00e1\u0161 volac\u00ed prefix je 055 72712XXXX.<\/div>\n
\tJe zn\u00e1me pou\u017e\u00edvanie ostatn\u00fdch \u010d\u00edslovac\u00edch pl\u00e1nov napr. na STU Bratislava, alebo na \u017dU alebo kdeko\u013evek v\u00a0infra\u0161trukt\u00fare siete SANET. Existuje experiment\u00e1lne prepojenie s\u00a0VoIP sie\u0165ou CESNET v\u00a0\u010cech\u00e1ch.<\/div>\n
\tMoment\u00e1lne je mo\u017en\u00e9 sa dovola\u0165 z\u00a0IP siete na UPJ\u0160 na vybran\u00e9 klapky na:<\/div>\n
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\t\t\t\t\tTU Ko\u0161ice pomocou prefixu: \t\t\t\t\t<\/p>\n
\t\t\t\t\t\t055 602XXXX<\/div>\n<\/td>\n<\/tr>\n
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\t\t\t\t\t\t\u017dU- \u017dilinsk\u00e1 univerzita<\/div>\n
\t\t\t\t\t\t041 513XXXX<\/div>\n<\/td>\n<\/tr>\n
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\t\t\t\t\t\tSAV-KE<\/div>\n
\t\t\t\t\t\t055 7922XXX<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n
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\tPodrobnej\u0161\u00ed zoznam je na www str\u00e1nke voip.upjs.sk<\/a><\/div>\n
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\tPodobne s\u00fa zverejnen\u00e9 prefixy pre STU Bratislava, Ministerstvo \u0161kolstva, UIaProgn\u00f3z.<\/div>\n
\tPomocou ENUM – automatick\u00e9 smerovanie bude mo\u017en\u00e9 vola\u0165 aj do ostatn\u00fdch kraj\u00edn (Rak\u00fasko, \u0160vedsko, USA a\u00a0in\u00e9…).Na to je potrebn\u00e9 aby pr\u00edslu\u0161n\u00e1 druh\u00e1 strana vytvorila DNS z\u00e1znam a\u00a0pr\u00edslu\u0161n\u00fd smer sa stane dostupn\u00fdm.<\/div>\n
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\tOdpor\u00fa\u010dania<\/strong><\/div>\n