What is TELEX and ISDN?

Telex service provides the communication that is automatic in nature with the help of the printed words. The department of telecommunication provides this service with the help of telex automatic exchange that are present in some of the specific cities only. These type of connection is provided in the local areas we are connected with local areas and the places that are beyond the area that are up to maximum of the 66 km distance from the telex exchange. Under this system the sender just uses a button and presses it he dials a desired number and the number that is dialed is contacted and hence message is typed.Message that is typed is taken out in a small paper strip at the end of the receiver. Hence the written message is conveyed accurately in this way. There is no of advantages of telex service.The message is sent very quickly by this process. Hence it gives the combined advantage of a telephone and letter.This service is used the booking of inland as well as the foreign telegram by directly contacting office of telegraph.In case the receiver is not there when offices are closed .The message is left typed on the teleprinter neatly. This service provides direct connection with the party that is called. Since a message can be sent and received at any time so it is very useful for the large stock exchanges, business house, new agencies etc.

It involves tariff at the fixed rate and also local call charges that based on duration of three minute it is essential that the message that has been printed is brief clear and complete. So to get the maximum advantage this service is used as the part of communication process in the earlier life .With the use of internet and emails the use of telex has decreased day by day. The service that can be used for transmitting the message is ISDN. ISDN provides transmission of the data voice and image over the phone lines with high speed low error and high quality. It offers a set of the integrated service using digital network of the telephone. It is tariff-ed similar to the telephone call hence it forms economical proposition .ISDN basically stands for integrated service digital network. It is a multi device and multi channel service that gives the usage of the telephone in a wider sense .In the small offices people can have PC phone and telephone machine that can be connected to single ISDN line.ISDN use the same wiring for the home and business .It also adds the advantage of more dependable and faster connection.

ISDN gives full connectivity nationally and internationally, to the subscribers of other telephones also. The high quality voice is transmitted at 64 kb/s. The transmission of data at the high speed of 64kb/s enables the transfer of data files on PC on the basis of dialup connection .Video conferencing can also be done on desktop Pc with the help of single line at 64kb/s, the high quality video conferencing between the two ISDN subscribers with the help of three ISDN line at 383 kbps. A high quality video conferencing can be done by this .With the help of ISDN still picture can also be sent with the voice and video image of both parties. It can also go for two simultaneous calls that are independent on the pair of wires of the line of the telephone. The connectivity found in the ISDN is g3 and g4 FAX. We can also connect telephone and fax through the terminal adapter. We can connect upto 8 terminals on one ISDN line. The cost connected with ISDN is monthly fees of ISDN installing and setup fees and the line fees that vary from one place to other widely. The setup cost for ISDN is not recurring and also is nominal and the rents that are made to be paid monthly are laso reasonable in nature. The line fee that is charged per minute for actual line usage is the most impact factor to look into ISDN facility The cost of ISDN weighed against the advantages of the ISDN are very low. It is becoming popular because of higher speed, broad communication capacity and connection that are very clear.

With ISDN transfer image data and voice over the fact telephone and internet has been made very quick and easy. Hence this type of communication has become the part of the modern life. It is used in a day to day life in our homes as well as in the business that need to be connected to the whole world in the fraction seconds.These things had made our life easier and has made the globalization possible .With the help of this kind of communication processes one can easily connect to the person sitting at the totally other end of the globe. The local rates and international rates are reasonable enough to be afforded by the normal person .These types of features are very useful in business and marketing. While in business on the international level one can keep in touch with the people sitting at the far away places. With the help of video conferencing one can not only talk with the clients from the far away places but also can see them in the fraction of seconds. These types of facilities have given advantage of being connected globally.