Explain routing tone in strowger telephony, Computer Engineering

Assignment Help:

Explain routing tone in strowger telephony with waveforms and the timings.

The call-in-progress tone or routing tone is a 400 Hz or 800 Hz intermittent pattern. In electromechanical systems, this is generally 800 Hz with 50 percent duty ratio and 0.5 s on/off period. This is a 400 Hz pattern with 0.5 s on period and 2.5 s off period, in analog electronic exchanges. In digital exchanges, this has 0.1 s on/off periods at 400 Hz. While a subscriber call is routed by a number of different types of exchanges, one hears various call-in-progress tones as the call progresses by different exchanges. Figure shows a routing tone pattern.

1078_routing tone.png

Figure: call-in-progress tone or routing tone


Related Discussions:- Explain routing tone in strowger telephony

Advantages of instruction set architecture, Advantages of Instruction set a...

Advantages of Instruction set architecture: Stack Advantages : it is simple Model of expression evaluation (reverse polish). Contain Short instructions. Disadvanta

Illustrate about the three state table buffers, Three state table buffers ...

Three state table buffers Three state table buffers: A bus system can be constructed with the help of three state gates instead of multiplexers. A three states gate is digital

How a physical addressing is performed in wan, How physical addressing is p...

How physical addressing is performed in WAN? WAN networks operate as similar to a LAN. All WAN technology classifies the exact frame format a computer uses while sending and re

Eight-stage process - conjunctive normal forms, Eight-stage process - Conju...

Eight-stage process - Conjunctive normal forms: Hence we notice the following eight-stage process converts any sentence with CNF as:  1.  Eliminate all arrow connectives by

Implement the concept of true and radix minus one complement, Q. Develop a...

Q. Develop a program to implement the concept of true and radix minus one complement. Program should ask for radix and two numbers from that radix. For that two numbers program

What are the steps include constructing a functional model, What are the St...

What are the Steps include constructing a Functional Model Recognize input and output values Build data flow diagrams which shows functional dependencies Explain

Can the size of an array be declared at runtime, Can the size of an array b...

Can the size of an array be declared at runtime?              No, the size of an array can't be declared at run time, we always require to mention the dimensions of an array at

Explain the working of light pens, Explain the working of light pens Li...

Explain the working of light pens Light pens still exist, but due to several disadvantages they are not as popular as other input devices that have been developed. For example,

What is gdpro and magicdraw uml, What is GDPro and  MagicDraw UML GDP...

What is GDPro and  MagicDraw UML GDPro : This  is a full suite of code  management tools and UML. MagicDraw UML: UML diagrams fully support this: MagicDraw RConverter a

Board coloring, In this problem you are given a board in which some of the...

In this problem you are given a board in which some of the elements are placed as shown in diagram below. Each element represents a color. Fill the other elements in the board, suc

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