VOIP Android App & Admin portal Development As per XLS

To develop a VoIP calling app
direct calling phone/mobile with custom caller ID

Admin portal-
1. User management
2. Custom caller ID
3. Calling history with IP
4. Manage User details, Name, Email, User ID, Showing password, Caller ID with have change custom caller ID
5. Save Calling details with IP, calling number, time etc
6. Manage User by Admin (Add & remove User)
7. Admin portal development
8. User Android App with Login Email id & Password
9. Admin portal- only add new user by Admin,