Consider a voice$-$over$-$IP system that transmits

$64$Kbits$/$sPCM

voice using RTP$/$UDP$/$IP with a packetization interval of

$20$ ms

$.$ How many such streams can be transmitted over a $10$Mbps Ethernet link assuming the link can be loaded up to

$80\%$

$?$ What is the maximum number of streams if packetization interval of

$10$ ms

was used? If these streams with a packetization interval of

$20$ ms

were transmitted to a mobile