Inkcazo: H.323 iyinqanaba lomgaqo -nkqubo wezonxibelelwano ze-multimedia. I-H.323 yenzelwe ukuxhasa ukuhanjiswa kwexesha lokwenene kwedatha kunye nevidiyo kwiipakethe zepakethe njenge-IP. Umgangatho uquka iinkqubo ezahlukeneyo ezibandakanya iinkalo ezithile ze-intanethi ye-intanethi. I-International Telecommunication Union (ITU-T) igcina iH.323 kunye nale migangatho ehambelana nayo.
Uninzi lweefayile ze-IP (VoIP) zisebenzisa iH.323. I-H.323 isekela ukusekwa kweefowuni, i-teardown kunye nokuthumela / ukudluliselwa. Izixhobo zokwakhiwa kweenkqubo ze-H.323 ziiNkcazo, iiNyunithi zoLawulo lweMixpoint (i-MCUs), i-Gateway, i-Gatekeeper kunye no-Border Elements. Imisebenzi eyahlukeneyo ye-H.323 isebenza ngaphaya kweTCP okanye iDP . Ngokubanzi, iH.323 ikhuphisana ne- Session Initialization Protocol (SIP), enye inqanaba elivakalayo elifumaneka rhoqo kwiinkqubo zeVoIP .
Into ebalulekileyo yeH.323 yiNqanaba leNkonzo (QoS) . I-teknoloji ye-QoS ivumela i-priority-time priority and imithintelo yokulawulwa kwezithuthi ukuba ibekwe kwiindlela ezinje zokuhambisa iipakethe ezifana ne-TCP / IP kwi-Ethernet. I-QoS iphucula umgangatho welizwi okanye ividiyo.