How to intall-Its very easy
1. Use an IMG tool or txd workshop or any other alternative tool.
2. Using your tool open gta3.img in models folder located in your GTA SA directory.
3. Find cellphone.txd and replace it with mine cellphone.txd
4. Find cellphone.dff and replace it with mine cellphone.dff
Dont distribute this mod anywhere else.
Enjoy.