Intercom system based on voip and GSM ( 24 hours at home )

Abstract

The computers nowadays is available in every property as well as the internet network, we attempt to turn the internet into a new level rather than browsing and e-mailing . we will use the availability of the internet to reach the property owner everywhere after he leaves his property ( home for example). The absence of the property owner is sometimes annoying to some visitors in difficult and emergency circumstances , so we will employ the internet to reach him everywhere using the intercom located at the front door. We will establish a connection between the intercom and the owner mobile phone so the visitor can make a (voip) or ( GSM) call with the owner using the intercom. We will build a server that manages the voip call and the GSM call ( despends on the availability of any of the two technologies_ and provide extra features just like monitoring the property or control the gates from outside.