problems

I have an application that is type soft phone; it has 3 simple activities: 1. Registration of credentials 2. Dialpad 3. Calls; 4. Phone service that starts at boot 5. start that starts phone when user applies task killer everything works fine until the user comes up with the genius of applying...

Hello. i'm almost done, my new app and i wanted a "code evaluation" from you so i can improve it even more and help solving problems found The app has a mysql and php backend of which a part I wrote it myself, the other I used a program to generate it. the app uses a timer, which continues...