Domin aiwatar da aikace-aikacen multimedia akan hanyar sadarwar sadarwar da ake da ita, Ƙungiyar Sadarwar Sadarwa ta Duniya (ITU-T) ta haɓaka jerin ka'idojin sadarwar multimedia H.32x. Mai zuwa shine taƙaitaccen bayanin manyan ma'auni
H.320, ma'auni don sadarwar multimedia akan tsarin tarho na bidiyo na narrowband da m (N-ISDN);
H.321, ma'auni don sadarwar multimedia akan B-ISDN;
H.322, ma'auni na sadarwar multimedia akan LAN wanda QoS ya tabbatar;
H.323, ma'auni don sadarwar multimedia akan hanyar sadarwa mai sauya fakiti ba tare da garantin QoS ba;
H.324, ma'auni don sadarwar multimedia akan ƙananan hanyoyin sadarwa na ƙananan kuɗi (PSTN da hanyar sadarwa mara waya).
Daga cikin ma'auni na sama, H.323 Standard ya bayyana cibiyar sadarwa ita ce mafi yawan amfani da ita, kamar Ethernet, Token, FDDI, da dai sauransu saboda aikace-aikacen H. Ma'aunin 323 a zahiri ya zama wuri mai zafi a kasuwa, don haka za mu mai da hankali kan H.323.Shawarar H.323 ta bayyana manyan abubuwa guda huɗu: tashoshi, ƙofofin ƙofa, software na sarrafa ƙofa (wanda aka fi sani da masu tsaron ƙofa ko ƙofa), da sarrafa maɓalli mai yawa. raka'a.
1. Terminal
Duk tashoshi dole ne su goyi bayan sadarwar murya, kuma damar sadarwar bidiyo da bayanan na zaɓi ne.Duk tashoshin H.323 dole ne su goyi bayan ma'aunin H.245, wanda ke sarrafa amfani da tashoshi da aiki.H.323 yana ƙayyadad da mahimman sigogin codec na murya a ciki. sadarwar murya kamar haka: ITU ya ba da shawarar bandwidth murya / kHz watsa bit bit / Kb / s Compression algorithm annotation G.711 3.456,64 PCM sauki matsawa, shafi PSTN G.728 3.416 LD-CELP ingancin magana kamar G.711, Lokacin da An yi amfani da shi zuwa ƙananan saurin watsawa G.722 7 48,56,64 ADPCM ingancin magana ya fi G.711, lokacin da aka yi amfani da shi don watsawa mai girma G.723.1G.723.0 3.4 6.35.3 LP-MLQ ingancin magana G. .723.1 yana amfani da G.729 don dandalin VOIP. G.729a 3.48CS-ACELP jinkiri ya yi ƙasa da G.723.1, ingancin murya ya fi G.723.1.
2. Gateway
Wannan zaɓi ne don tsarin H.323. Ƙofar za ta iya canza ƙa'idodin, audio da bidiyo algorithms codeing da siginar sarrafawa da tsarin daban-daban ke amfani da shi don ɗaukar sadarwar tashoshi na tsarin. Kamar yadda PSTN tushen H.324 System da narrowband ISDN tushen H.320 System da H.323 System sadarwa, shi wajibi ne don saita ƙofa.
3. Mai tsaron Kofa
Wannan wani zaɓi ne na tsarin H.323 wanda software ke sarrafa shi. Yana da manyan ayyuka guda biyu: ɗaya shine sarrafa aikace-aikacen H.323; Na biyu shine gudanar da sadarwar tasha ta hanyar ƙofa, kamar kafa kira, tarwatsawa, da dai sauransu. Mai gudanarwa na iya yin fassarar adireshi, sarrafa bandwidth, tabbatar da kira, rikodin kira, rajistar mai amfani, sarrafa yankin sadarwa da sauran ayyuka ta hanyar mai tsaron gida.An. Yankin sadarwa na H.323 na iya samun ƙofofin da yawa, amma kofa ɗaya ce kawai ke iya aiki.
4. Multipoint iko naúrar
MCU tana aiwatar da sadarwa mai ma'ana da yawa akan hanyar sadarwar IP, ba a buƙatar sadarwa mai ma'ana-zuwa-aya. Ƙirƙirar tsarin gaba ɗaya zuwa ilimin taurari ta hanyar MCU. MCU ya ƙunshi manyan abubuwa guda biyu: Multipoint controller MC da multipoint processor MP, ko kuma ba tare da MP ba. MC yana aiwatar da bayanin kulawar H.245 tsakanin tashoshi, kafa ƙaramin mai suna don sarrafa sauti da bidiyo. MC ba ya aiwatar da kowane rafi na bayanan mai jarida kai tsaye, amma yana barin shi zuwa MP. MP ɗin yana haɗawa, juyawa, da sarrafa bayanan sauti, bidiyo, ko bayanai.
Akwai nau'ikan gine-gine guda biyu na wayar IP a cikin masana'antu, ɗayan shine ITU-TH.323 yarjejeniya da aka gabatar a sama, ɗayan shine tsarin SIP (RFC2543) wanda IETF ya gabatar, ka'idar SIP ta fi dacewa da tashar mai hankali.
Abubuwan aikin software na sama namu neONUjerin samfuran cibiyar sadarwa a cikin kasuwancin software, da samfuran siyar da kayan sadarwar da suka dace na kamfaninmu suna rufe nau'ikan nau'ikanONUjerin, ciki har da ACONU/ sadarwaONU/ mai hankaliONU/ akwatinONU/ Dual PON tashar jiragen ruwaONU, da sauransu. Duk abin da ke samaONUAna iya amfani da samfuran jerin samfuran don buƙatun hanyar sadarwa na kowane fage. Barka da zuwa samun ƙarin cikakkun bayanai na fasaha na samfurin.
