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 public key cryptography, What is Public Key Cryptography? Pub...

What is Public Key Cryptography? Public-key cryptography is a type of modern cryptography that allows users to communicate safely without any previously agreeing on a shared

Chains of inference, Chains of Inference: Now we have to look at how t...

Chains of Inference: Now we have to look at how to get an agent to prove a given theorem using various search strategies? Thus we have noted in previous lectures that, there i

Password cracking, Hashed strings can often be deciphered by 'brute forcing...

Hashed strings can often be deciphered by 'brute forcing'. Bad news, eh? Yes, and particularly if your encrypted passwords/usernames are floating around in an unprotected file some

What is a user diagram protocol, UDP (User Diagram Protocol) is? It is ...

UDP (User Diagram Protocol) is? It is both Connectionless and Message Oriented.

Illustrate working of pocket and pc-card modems, Q. Illustrate working of P...

Q. Illustrate working of Pocket and PC-Card Modems? Pocket Modems: Small external Modems used with notebook PCs.  PC-Card Modems:  PC and Modems are read with PCMCIA slots w

Utilization count - processor, The Utilization Count shows the status of ea...

The Utilization Count shows the status of each processor in a specific mode i.e.  Overhead mode, busy mode, and idle mode with respect to the progress in time as shown in Figure.

Voice identifier - biometric computer security systems, Voice Identifier - ...

Voice Identifier - Biometric Computer Security Systems Besides fingerprint, another popular security technology is voice identifier. According to VSS organization (2007), voic

Predicates, Fred, Barney and Ralph belong to the La Trobe Mountain Club. Ev...

Fred, Barney and Ralph belong to the La Trobe Mountain Club. Every member of the Club is either a skier or a hiker. Anyone that doesn't like snow does not like skiing. No hikers li

Explain about the functionality of olap, Hyper cube or multidimensional cub...

Hyper cube or multidimensional cube forms the core of OLAP system. This having of measures which are arranged according to dimensions. Hyper cube Meta data is formed by star or sno

If the system is not booting what can we do, First we must go to bios and s...

First we must go to bios and should check boot sequence,local add statusOr we should check RAM & check h.d.d cable. check cd writer for cd or dvd

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