Kuti tishandise maapplication emultimedia pane network iripo yekutaurirana, International Telecommunication Union (ITU-T) yakagadzira H.32x multimedia communication protocol series. Izvi zvinotevera tsanangudzo pfupi yezviyero zvikuru
H.320, chiyero chekukurukurirana kwemultimedia pane narrowband vhidhiyo nharembozha uye terminal (N-ISDN);
H.321, chiyero chekukurukurirana kwemultimedia paB-ISDN;
H.322, chiyero chekukurukurirana kwemultimedia paLAN inovimbiswa neQoS;
H.323, chiyero chekukurukurirana kwemultimedia pane packet-switched network pasina QoS vimbiso;
H.324, chiyero chemultimedia kutaurirana pane yakaderera bit rate yekutaurirana zviteshi (PSTN uye network isina waya).
Pakati pezviyero zviri pamusoro, H.323 Standard inotsanangura network ndiyo inonyanya kushandiswa, yakadai seEthernet, token, FDDI, etc.nekuda kwekushandiswa kweH. 323 chiyero chave chave chiri nzvimbo inopisa pamusika, saka tichatarisa paH.323.Kurudziro yeH.323 inotsanangura zvikamu zvina zvikuru: materminals, magedhi, gedhi manejimendi software (inozivikanwawo sevarindi vemikova kana magedhi), uye multipoint control. units.
1, Terminal
Zvose materminals anofanirwa kutsigira kutaurirana kwezwi, uye mavhidhiyo nedata zvekutaura zvinogoneka.Zvose zveH.323 zviteshi zvinofanirawo kutsigira H.245 chiyero, iyo inodzora kushandiswa kwechaneshi nekushanda.H.323 inotsanangura maparameter makuru ekodeki yezwi mu kutaurirana nezwi sezvinotevera: ITU yakakurudzirwa voice bandwidth /KHz transmission bit rate /Kb/s Compression algorithm annotation G.711 3.456,64 PCM nyore kudzvanya, inoshandiswa kuPSTN G.728 3.416 LD-CELP kunaka kwekutaura seG.711, Kana kuiswa kune yakaderera bit rate transmission G.722 7 48,56,64 ADPCM kutaura kwemhando yepamusoro kupfuura G.711, kana yaiswa pahigh bit rate transmission G.723.1G.723.0 3.4 6.35.3 LP-MLQ kutaura kunaka kunogamuchirwa G. .723.1 inoshandisa G.729 yeVOIP forum. G.729a 3.48CS-ACELP kunonoka kwakaderera pane G.723.1, kunaka kwezwi kwakakwirira kudarika G.723.1.
2、 Gateway
Izvi ndezvekusarudza kune H.323 masisitimu. Iyo gedhi rinogona kushandura maprotocol, odhiyo uye vhidhiyo coding algorithms uye kudzora masaini anoshandiswa neakasiyana masisitimu kugarisa kutaurirana kwesystem terminals. Sezvakaita PSTN yakavakirwa H.324 System uye narrowband ISDN yakavakirwa H.320 System uye H.323 Kukurukurirana kweSystem, zvinodikanwa kugadzirisa gedhi.
3. Muchengeti wepagedhi
Ichi chikamu chekusarudza cheH.323 system inotungamirirwa nesoftware. Iine mabasa makuru maviri: imwe ndeyekutarisira zvikumbiro zveH.323; Yechipiri ndiyo hutungamiri hwekutaurirana kwekupedzisira kuburikidza negedhi, zvakadai sekugadzwa kwekudanwa, kubvisa, nezvimwewo. Mutariri anogona kuita shanduro yekero, bandwidth control, call authentication, call record, user registration, communication domain management uye mamwe mabasa kuburikidza neGatekeeper.An H.323 communication domain inogona kuva nemagedhi akawanda, asi gedhi rimwe chete rinogona kushanda.
4. Multipoint control unit
MCU inoshandisa multi-point kutaurirana paIP network, point-to-point kutaurirana haidiwe. Gadzira sisitimu yese kuita nyeredzi topology kuburikidza neMCU. Iyo MCU ine zvinhu zviviri zvakakosha: multipoint controller MC uye multipoint processor MP, kana isina MP. Iyo MC inogadzirisa H.245 inodzora ruzivo pakati pematerminal, ichigadzira zita risingawanzozivikanwa reodhiyo nemavhidhiyo kugadzirisa. MC haigadzirise zvakananga chero midhiya yeruzivo rukova, asi inoisiya kuMP. Iyo MP inosanganisa, inochinja, uye inogadzirisa odhiyo, vhidhiyo, kana data data.
Kune maviri akaenzana architectures eIP foni muindasitiri, imwe iITU-TH.323 protocol yakaunzwa pamusoro, imwe yacho SIP protocol (RFC2543) inokurudzirwa neIETF, SIP protocol inonyanya kukodzera kune yakangwara terminal.
Iwo ari pamusoro software function point ndeyeduONUakatevedzana network zvigadzirwa mubhizinesi resoftware, uye netiweki inodziya kutengesa zvigadzirwa zvekambani yedu inovhara akasiyana marudzi eONUseries, kusanganisira ACONU/ kutauriranaONU/ akangwaraONU/ bhokisiONU/ maviri PON portsONU, etc. Zvose zviri pamusoroONUseries zvigadzirwa zvinogona kushandiswa kunetiweki zvinodiwa zvechiitiko chimwe nechimwe. Kugamuchirwa kuti uve neruzivo rwakadzama rwehunyanzvi hwekunzwisisa kwechigadzirwa.
