My phone will not ring out loud and vibrate at the same time.
To turn on a ringtone and vibration, go to your BlackBerry's sounds and ring tone options by either of the following ways:
1. Use the trackball to go to the sound icon in the upper left corner of the main screen and click on it, then toward the bottom of the list that appears, select Set Ring Tones/Alerts, then select Phone.
2. In the Home folder, go to your Options folder (usually toward the bottom, has a wrench icon) and select Sounds and Ring Tones.
Select the ring tone and volume that you want, and for Play Sound select Always. Scroll down to Vibration and set it for On.
There is an option for Vibrate with Ring Tone -- set that to on in order to make your phone both ring and vibrate at the same time, then save the settings when you cancel out, and you're all set.