My audio apps keep playing in the background after I answer a phone call. How do I turn this off?

Hello BobWeaver,

It sounds like we need to troubleshoot the software on your device as that is not expected behavior.

I would perform steps 1, 3 and 5 from the iPhone Troubleshooting Assistant found here http://www.apple.com/support/iphone/assistant/phone/. If you get to step 3, then I suggest closing all the apps. Here is step 1 to get you started:

Restart iPhone

To restart iPhone, first turn iPhone off by pressing and holding the Sleep/Wake button until a red slider appears. Slide your finger across the slider and iPhone will turn off after a few moments.

Next, turn iPhone on by pressing and holding the Sleep/Wake button until the Apple logo appears.

Is iPhone not responding? To reset iPhone, press and hold the Sleep/Wake button and the Home button at the same time for at least 10 seconds, until the Apple logo appears.

If your device does not turn on or displays a red battery icon, try recharging next.

Cheers,

Sterling