Forward your calls when your battery is discharged. Last Call Forward monitors your battery level, and if it drops bellow the defined level, it39;ll forward your calls to another phone. Ideal for people that constantly forget to charge their phone. Setting up is pretty straight forward you need to enter quot;call forward onquot; code, and quot;call forward offquot; code. You need to obtain these from your carrier, and they generally are constructed like this:For GSM:Call forward on code: 21phonenumberCall forward off code: 21For some North America operators:Call forward on code: 72phonenumberCall forward off code: 73For Sprint Nextel cellphone company:Call forward on code: 72phone numberCall forward off code: 720There are various type of call forward codes, but since it39;s assumed that there is no battery left on your device, you only need the quot;forward all callsquot; code. There is a test button next to each field in the application. You can use it to test if the call forward codes are working.Please email me at lastcallforward@gmail com if there are any problems, and I39;ll do my best to fix them.