You now have the ability to utilize conditional call forwarding on your iPhone. This feature allows you to redirect calls when you are busy, do not answer, or are unreachable. With call forwarding, you can easily turn on or off and monitor the status of all these conditional options. This application operates using the standard call forwarding codes recognized by GSM carriers globally; however, if your service provider is not a GSM carrier, this app will not function for you. It's a convenient tool for managing your calls no matter the situation.