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Explain Busy tone in strowger telephony.
Busy tone pattern is demonstrated in figure. This is a bursty 400 Hz signal with silence era in between. The burst and silence duration contain the similar value of 0.75 s or 0.375 s. A busy tone is sent to the calling subscriber when the switching equipment or junction line is not obtainable to put through the call or the called subscriber line is engaged.
Figure: Busy Tone
Which digital logic family has minimum power dissipation ? Ans. The minimum power dissipation of digital logic family is CMOS. CMOS being an unipolar logic family, occupy a to
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deque insertion and deletion ..
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