A.8 B.16 C.32 D.64
A.1.25Gb/S B.1.0Gb/S C.2.0Gb/S D.2.5Gb/S
A.編解碼時(shí)延 B.語音時(shí)延 C.接入時(shí)延 D.發(fā)送時(shí)延