Q21 Single choice Mark for later G.722 uses which bit rate speeds for H.320 Visual Telephony? A 64, 32, and 56 kilobits per second B 64, 56, and 48 kilobits per second C 64, 56, and 48 kilobytes per second D 24 and 56 kilobits per second E 48 and 56 kilobits per second F 48 and 56 kilobytes per second G 16 and 32 kilobits per second Correct answer