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Warren

Warren

The Answer is C. 672

Andreas

Andreas

Warren is right, the correct answer is C.

Carrier Signal Level # of T1 signals # of Voice Channels Speed
T1 DS-1 1 24 1544 kbps
T1c DS-1c 2 48 3152 kbps
T2 DS-2 4 96 6312 kbps
T3 DS-3 28 672 44736 kbps
T4 DS-4 168 4032 274760 kbps