-A companys telephone exchange (PBX or hosted IP- PBX) digitizes telephone channels at 8000 smp/s, using 8 bits for quantization. The telephone exchange transmits simultaneously on 24 telephone channels over the same communications link

a)Whats the required per channel data rate ?

b)What is the combined data rate for the 24 channels over the communications link ?

c)In order to provide voice-mail service, the telephone exchange can store three-minute audio messages using the same digitizing process used for a telephone channel. How many megabytes of data storage space are needed to store a three-minute voice-mail message ?