Call forwarding

I would like to forward all calls to my number on to the new predefined number automatically. Is it possible to forward incoming call ?

Probably it is possible for Froyo at least. I found application called Easy Call Forwarding. http://www.appstorehq.com/easycallforwarding-android-189596/app But many people reckon it doesn't work actually.

We can notice forwarded call by onCallForwardingIndicatorChanged() from PhoneStateListener but I have no idea how to set forwardi开发者_运维问答ng mode.

I explored on the net and got the answer to my question that how one can forward a call programmatically. Add these lines of code and one will be able to achieve it.

String callForwardString = "**21*1234567890#";    
Intent intentCallForward = new Intent(Intent.ACTION_DIAL); // ACTION_CALL                               
Uri uri2 = Uri.fromParts("tel", callForwardString, "#"); 
intentCallForward.setData(uri2);                                
startActivity(intentCallForward); 

Here 1234567890 represents the phone number. Add the approriate phone number as you wish here. One can dial ##21# to deactivate the service.

My solution:

Intent intent = new Intent(Intent.ACTION_CALL);  
String prefix = "#31#";          
prefix = Uri.encode(prefix);  
intent.setData( Uri.parse("tel:"+prefix+"123456"));  
startActivity(intent);