Explain the number unobtainable tone in strowger telephony, Computer Engineering

Assignment Help:

Explain the number unobtainable tone in strowger telephony with waveforms and the timings.

In the following figure illustrates the number unobtainable tone that is continuous 400 Hz signal. This tone might be sent to the calling subscriber because of a variety of reasons as the called party line is out of order or disconnected, and an error in dialing leading to the selection of a spare line. In the several exchanges the number unobtainable tone is 400 Hz intermittent along with 2.5 s on period and 0.5 s off period.

846_unobtainable tons.png

Figure: the number unobtainable tone


Related Discussions:- Explain the number unobtainable tone in strowger telephony

What is a shift register, What is a Shift Register? Ans:  Shift R...

What is a Shift Register? Ans:  Shift Register: A register wherein data finds shifted towards left or right while clock pulses are applied is termed as a Shift Register.

What are the stages of data mining, What are the stages of data mining? ...

What are the stages of data mining? The procedure of data mining comprises three stages, which are given below: a) The initial exploration b) Model building c) Deploym

Explain bottom-up parsing techniques, Explain Bottom-up Parsing Techniques ...

Explain Bottom-up Parsing Techniques A parser can begin with the input and attempt to rewrite it to the start symbol. Instinctively, the parser attempts to locate the most bas

What are the types of smart cards used in e-commerce, What are the types of...

What are the types of Smart cards used in e-commerce? Generally there are 2 types of smart cards. Memory smart cards, which can be sighted as minuscule removable read/ write

4, Ask question 4#Minimum 100 words accepted#

Ask question 4#Minimum 100 words accepted#

Define the term ''turn-around'', The "turn-around" time of a user job is th...

The "turn-around" time of a user job is the? Ans. Total time taken to execute the job is called "turn around" time.

What is the difference among a canvas and a scroll panel, Canvas is a compo...

Canvas is a component. ScrollPanel is a container. Canvas is a rectangular area where the application can draw or trap input events. ScrollPane executes horizontal and vertical scr

Difference among interrupt service routine and subroutine, Subroutine are t...

Subroutine are the part of implementing processes (like any process can call a subroutine for achieve task), whereas the interrupt subroutine never be the part. Interrupt subroutin

How will this difference b interpreted, How will this difference b interpre...

How will this difference b interpreted? When one pointer is subtracted from another pointer, the number of elements between the two pointers always includes the element pointed

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd