What is ISDN

 ISDN stands for the Integrated Services Digital Network. Basically it is a type of network that is used for the communication and data transferring. Typically it is defined as the type of the communication network that is based on the digital telephony services for the sake of different purposes such as the data transmission, voice or video communication and also sending different forms of multimedia messages with the help of digital phone lines is called as the integrated services digital networks or ISDN. They are very much faster as compared to the analog telephone lines. Theses kind of networks are used in all over the world fro the sake of many useful processes.

Specification Characteristics – Features of the ISDN:

Integrated services digital networks are very much advanced and very much faster as compared to other services based on the telephone lines. Some of the specification features of the ISDN are as follows; generally it is type of network having different types of protocols or the set of protocols that form the architecture of the technology. Different types of circuits are used in it to maintain the switching of different connections and calling of ISDN. There are different channels are involved in the networking and its speed is more then 60 kbps per channel which is the higher rate of data transmission through telephone lines. It is also the international standard of communication with the help of telephony.

How ISDN Works?

As we all know that integrated services digital networks are one of the faster technologies to transmit data with the help of phone lines among the different technologies of transmission. Basically its working depends upon the typical telephone line that consists of the copper wire and these networks use the same copper wire for the transmission. With the help of such infrastructure ISDN have ability to transfer different forms of the data such as voice data, video data and data packets. Integrated services digital networks have power to convert the ordinary copper telephone lines single circuit into the multiple circuits for the sake of transmission. Due to this reliable and faster networking, ISDN are very much recommended for the different type of video conferences. ISDN does not require any another telephone line for its proper functioning because it can be applicable on the old or the single line for the job and there is no confusion between the devices on the one line with ISDN. Generally the main work of the integrated services digital networks is to change the infrastructure of the analogue lines into the digital lines because ISDN only work on digital networks.

Types of ISDN:

Integrated Services Digital Networks or ISDN also branched into two different types on the basis of their performance, infrastructure and usage. Some specifications for theses two type of ISDN are as follows

  1. Basic Rate Interfere (BRI)
  2. Primary Rate Interfere (PRI)

Basic Rate Interfere (BRI):

The first type of the integrated digital networks is the basic rate interfere. It is a type of digital network that is mainly designed for the providing the data, video or voice transmission on the ordinary copper telephone lines for the home the users is  called as the basic rate interfere. There are different channels used in this type for the sake of transferring of data.

Primary Rate Interfere (PRI):

Another important type of the ISDN is the primary rate interfere. Generally it is applicable on the commercial use and enhances the businesses or different networking. 24 types of different channels are used in the PRI for data transmission. With the help of this type users have opportunity to do the video conferences over  single telephone line.