1) You connect your IP camera to your home network.
2) Now in order to view this camera's feed from anywhere you need to get a dynamic dns entry for the camera so that it can viewed from any browser from anywhere that has an internet connection (wifi, corporate network, cellular network, etc).
3) You can then get an application such as IP Cam Viewer from the Android market for your Android phone and use it to view your home camera's feed from anywhere that your phone can get an internet connection. You will just need to enter the dynamic dns address into the IP Cam Viewer configuration along with your username and password that you have setup for the IP camera on your network.
Hopefully that helps!