Question $3$

$($a$)$ A DS$-1$ communication link shown in Figure Q$3($a$)$ has $24$ PCM channels carrying different bit rates of voice signal. For every $8$ frames, $3$ frames carry full$-$rate $8-$bit voice channels, and $5$ frames carry half$-$rate $4-$bit voice channels. To maintain frame synchronization, a framing bit is added to the start of each frame. Analyze the parameters in the above DS$-1$ link and estimate the following bit rates and link utilization.

$($i$)$ Bit rate of the DS$-1$ link

$(3$ marks$)$

$($ii$)$ Bit rate of full$-$rate voice channels

$(3$ marks$)$

$($iii$)$ Bit rate of half$-$rate voice channels

$($iv$)$ Link utilization of the DS$-1$ link

Framing bit

Figure $03($a$)$

Please show me a solution with working and answers. I don't want any explanation