Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain Public Switched Telephone Network.
PSTN (Public Switched Telephone Network): This is Public Switched Telephone Network (PSTN), which accommodates two types of subscribers as: public and private. The subscribers to the private sector are customers who lease equipment, service from telephone companies and transmission media facilities on a permanent basis. The leased circuits are configured and designed for their utilization only and are frequently referred to as dedicated line circuits or private line circuits. For illustration, large banks do not desire to share their communication network along with other users, but this is not effective for them to construct their own networks. Thus, facilities from public telephone companies, banks lease equipment and fundamentally operate a private telephone or data network inside the PSTN. The public telephones companies are for a moment called providers, like they lease equipment and give service to other private organizations, companies and government agencies. Both MANs and WANs (i.e. most metropolitan area networks and wide area networks) uses private line data circuits and one or more service provider. Subscribers to the public sector of the PSTN share equipment and facilities which are available to all the public subscribers to the network. Such equipment is appropriately termed as common usage equipment, that includes transmission facilities and telephone switches. Everyone with a telephone number is a subscriber to the public sector of the PSTN. Because subscribers to the public network are interconnected only temporarily by switches, the network is frequently appropriately called the public switched telephone network (PSTN) and occasionally simply as the dial-up network. This is possible to interconnect telephones and modems along with one another over huge distance in fraction of a second by means of an elaborate network contains of central offices, cables (as optical and metallic), switches and wireless radio systems which are connected through routing nodes here a node is a switching point. When someone talks regarding the public switched telephone network, they referring to the combination of lines and switches which from a system of electrical routes by the network.
Which of the logic gates are known as universal gates ? Ans. NAND and NOR are termed as universal gates, since any digital circuit can be realized completely by using either of
What is EDI (Electronic Data Interchange)? EDI: Electronic Data Interchange (EDI) is used by organizations for transactions that happen on regular basis to a pre-determined for
Question: a) The following is a description of the navigation options in a mobile web site which provides public bus time slots for a city. It is an interesting service for m
a. Explain the meaning of frame buffer? Draw a block diagram showing the method for scanning out an image from frame buffer to display surface. b. Explain the structure of plasm
definf memory operation
What is the Main difference between ASP and ASP.NET ? ASP contains scripts which are not compiled while in ASP.net the code is compiled.
How are devices represented in UNIX? All devices are shown by files called special files that are located in /dev directory. Therefore, device files and other files are named a
Question: (a) Prepare short notes on the model primitives in Director MX 2004. (b) Therefore using the box primitive write codes to prepare a new model resource of length 50
The structure of Logical Databases reflects which dependencies of hierarchical tables in the SAP system. Foreign Key dependencies
The demand placed on a system is explained by a lognormally distributed random variable with mean 50 and standard deviation of 10. The capacity of the system is modeled by a Weibul
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd