Definitio: H.323 est protocol vexillum quia multimedia communications. Factus ut H.323 suscipio video et audio real-time decoram translationem exanimi similem notitia in retiacula packet IP. Et aliud ex pluribus protocols covering specifica vexillum facies Internet telephony . Et Telecommunication Unionis Internationalis (ITU-T) maintains H.323 related signa, et huiusmodi.
Most vox super IP (VoIP) H.323 applications utor. H.323 sustinet vocationem setup, et teardown procuret / translatio. System fundatur in elementis architecturae es H.323 terminals, Multipoint Imperium Center (MCUs), Gateways, et per portarium Terminus Elementa ad libitum. Alia munera aut in H.323 current TCP et UDP . Altiore, H.323 agone contendit cum recentior Sessio Initialization protocollo (HAUSTUS), saepe in alium proven vexillum VoIP systems .
A key pluma de H.323 est qualitas servitii (QoS) . QoS technology administratione negotiationis concedit real-time prioritization et angustia positus in a "optimus conatus," packet systemata diffusionis, sicut TCP / IP super Aer. QoS amplio species of vox et video feeds.