Hi,
With a website with static IP address can give other possibilities. I'm not sure if it is simpliefied, it is only different. Your mobile has to implement the HTTP protocol and POST to the website. Other approach is that it implement FTP protocol and upload a small file with the GPS informations. Of course files must be exclusive named.
If FTP or HTTP is implemented in the API in the mobile then it can simplifie a lots of course
If you can run executables or CGI on that website gives again more possibilities.