What types of voice codec do Grandstream VoIP products support?
R/ Each codec has its uniqueness for certain application. Grandstream BudgeTone series VoIP phones and HandyTone series analog telephone adaptors support G.711-uLaw, G.711-aLaw, G.722, G.723, textG.726, G.728 and G.729 and iLBC. The wideband codec G.722 is only supported by BudgeTone VoIP phones. It has the same bit rate as G.711 but with twice sampling rate (text16KHz vs. 8KHz) and better sound effecT.