title: Any iPhone SDK API available to promote 3G/GPRS over WiFi in an iPhone application
body: <p>I have a requirement to promote 3G/GPRS over WiFi connectivity in the iPhone application I am developing. Please let me know if this is possible and if yes, how?</p>
  
  <p>The problem is when I have a WiFi network which is available and connected but not logged in using Captive Portal, I cannot use that WiFi network to perform the tasks which require internet connection. What i have noticed is Reachability API detects the available WiFi but I cannot use it as I am not logged in and so I am not connected to internet using this WiFi hotspot until I login. So I want to use 3G/GPRS to perform the tasks requiring internet connectivity. </p>
  
  <p>iPhone's default behavior is it uses WiFi when its available and if not then only 3G/GPRS.</p>
  
  <p>So please let me know if both 3G/GPRS and WiFi are available but I am connected to internet not using WiFi but 3G/GPRS how to use 3G/GRPS to perform the tasks requiring internet connectivity.</p>
  
  <p>Regards,</p>