08-27-2008 07:28 PM
Hi and welcome to the forums!
Please specify model of phone and the version of OS OPTIONS -ABOUT will look like 4.x.x.xxx
Have you enabled ringtones?
08-27-2008 07:44 PM
Pull the battery while the phone is ON, leave it out for a minute, replace and
let the device reboot 1-3 min. See if the problem persists.