I really like the I Heart Radio ap but it's causing me fits when I receive or make a phone call while using the ap. I have noticed in the past with io5 that the start up after a phone call was immediate. However, with io6 and even more so with io7 I have noticed that after I make or receive a phone call, or even use a voice activated ap, it seems to completely lock up I heart radio. I usually have to shut down the ap and in some occasions, I have to reboot my phone. The ap seems to be inherently unstable and for some reason, it really hates voice applications. Any ideas why this might be occurring? BTW, I have reset my network settings, uninstalled and reinstalled the ap countless times and it doesn't respond to anything.