my iPhone 4S won't go off speaker or headphone mode

Hi lwaldoch,

Thanks for visiting Apple Support Communities.

It sounds like you may not be hearing sound through your iPhone speaker. I recommend the troubleshooting steps in this article:

iPhone: No sound or distorted sound from speaker

http://support.apple.com/kb/ts5180

If you see the icon below, try these steps as well:

If the sound output source indicates "headphones" and no headphones are attached, try attaching headphones momentarily, then disconnect the headphone and press the volume button again. See if the sound output is now going through the built-in speaker. You may want to try repeating this more than once—inserting and removing the headset multiple times could free any debris that may have been lodged in the headphone jack. Do not attempt to insert anything other than the headphone connector into the iPhone headset jack.

From:

iPhone: No ring or sound from built-in speaker

http://support.apple.com/kb/TS1205

Best,

Jeremy