VoIP(VoiceoverIP)isarapidlygrowingareawithgreatmarketpotential.Topromoteitforbothcommericalandresearchpurposes,aprototypeVoIPsystembasedonstate-of-the-artotorolacommunicationtechniqueshasbeendeveloped.ItisagatewaysystemintegratingaPBXandaVoIPmodule.AllcomponentsthatH.323definestosupprotVoIPareimplementedintheVoIPmodule,thoughinasimplifiedmanner,Asanembeddedsystem,thesystemfeaturesrealtimenessandtaskdistributiveness.Anumberofaddiitonaltechniquesareusedtoimprovetheperformance,includingnoisesuppression,zerocopy,andbufferstructureoptimization.Whenrefinedininteroperability,thesystemwillalsoreadilyserveasaproduct.
