Right now communication technology is very sophisticated. The technology is always increasing day by day. It makes our life easier. We will be easier to make a communication. Even we have to communicate with someone over seas; we can able to do that. Only by hang the phone then press the destination number and we can talk anything with the people around there. Telephone is also very important for business activity. Since business activity is always need faster, up to date, and real time news. Is it from our partner or it is from our vendors or customers. Not only that, telephone will be also make our job effective and efficient, especially if the company have a high office building that is have lots of stairs. We don’t need to go up stair and back to our room when we have affair with someone in up stair.

Beside that, if the company has more than one office location, it will be hard for us to communicate with all of our company office if the telephone is not integrated yet. As a big company with more than one office location we need phone systems. This phone system will help us to communicate with internal party in the office and also with the external party. Usually the integrated phone in the office is using extension communication system. This extension communication system will be able to answer the call from outside office because it has servers that will connecting to the destination that the caller want.

In some telephone service that is used in the office, they also have some services that are used if the telephone is not answered, in case if the office already closed then someone is calling the office’s telephone and nobody answer it. The features that you will get if you use n extension phone service are you will have a voicemail and greeting of your phone, you can get the notifications, you will be able to manage the telephone, you can use auto reception, you can get music message when the call is hold, and the other interesting features.