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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
Define Process Process is a program in execution; process execution should progress in sequential fashion. A process involves: a) Program counter b) Stack c) Data se
how to draw dfd on this??
Q. Characteristics of decision support system? Characteristics of DSS- The qualities of the DSS are as follows: - 1. DSS focus on towards providing assistance in analyzing s
Discuss two main approaches to identify free memory area in a heap. Two popular systems to identify free memory areas as a result of allocation and de-allocations in a heap are
How to calculate the flowchart
Stack pointer is a particular purpose 16-bit register in the Microprocessor, which grasp the address of the top of the stack.
Explain Recursive Descent Parsing It is a top down parsing with no backtracking. This parsing method uses a set of recursive processes to perform parsing. Most important advant
Consider the situation in which the disk read/write head is currently located at track 45 (of tracks 0-255) and moving in the positive direction. Assume that the following track re
define multipoint communication
Describe the various signalling techniques. Signaling systems link the variety of transmission systems, switching systems and subscriber elements in telecommunication network
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