Folks,

I'm pursuing a project which will effectively necessitate that mobile phones will be tracked. The outline is that if an incident were to occur, a user will be able to enable to start up an application on their phone which will allow on command send their location to a central hub. It is a simple idea, but one which requires a lot of technical knowledge.

So what I’d like to know is;

In general, if I were to track a gsm phone how accurate would it be?

Is there any way to improve this?

Would the application software be expensive to get written?

Thanks in advance