Telecommunication is a method for transmission of information over distances to communicate. In previous times, telecommunications used the visual signals, such as smoke signals, signal flags and audio messages via coded drumbeats or sent by loud whistles, etc. In present era of electricity and electronics, telecommunications now also includes the use of electrical devices such as telegraphs, telephones, and, the use of radio and their associated electronics, and the Internet.
With latest changes in technology the telecom industry also update itself with new equipments and devices. The recent change in the telecom sector has been observed by introduction of smart phones and tablets.
Mobile number portability is another such advanced modification, which improved customer services. Previously if you wanted to change your service provider, you had to change your contact number, which would have resulted in loss of so many contacts but now you can keep the same number and change your service provider. This service imposes pressure on telecom companies to improve their services. Customers get variety of options and get a chance to select best one for them.
Today telecommunication channels have larger data transmission capability. It also generates employment for various sectors of society from technical jobs to unskilled labors. The various areas in which jobs are developed includes sales and related jobs, administrative support occupation, installation, maintenance and repair occupation, etc. Thus telecom industry provides services as well as help countries economy to grow by reducing unemployment.
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