Introduction

IP (Internet Protocol) telephony is the fast developing technology that is slowly replacing the traditional telephony that was implemented using Public Switched Telephone Networks (PSTN). It is implemented fully using IP based networks which is used for transmission and reception of voice, data and other types of communications. Its main objective is to increase productivity with a decrease in cost.

Is VOIP same as IP Telephony?

Even though people use both the terms interchangeably, they are not completely same. It can be said that VOIP (Voice Over Internet Protocol) is a part of IP telephony as it is used for only transmission/reception of voice over IP.

How IP Telephony works?

The calls that are made using IP telephony are converted to small packets of data, and transmitted over the internet network. The biggest challenge of IP telephony is to deliver these small packets of data in a meaningful format to the end user.

In the residential sector, the users are most likely use softphones for making calls. Softphones are nothing but small software that helps the user to make calls over the IP network. The receiver may be another user of softphone or traditional PSTN. Mostly, the residential sector uses only voice and video calls.

In the business sector, digital IP phones will be installed in the office building with multiple extensions with the necessary hardware and software. For the business sector, the data may be documents, multimedia files, voice etc. Installation of IP phones are very simple and straightforward.

Benefits of IP Telephony

  • In the business sector, communication between companies is fast, and saves a lot of time. In the past, exchange of documents was through post offices or couriers. Nowadays it is very easy to share even very big documents over the IP network.
  • Saves lot of money for both residential as well as business sectors.