Originally Posted by tsac
this may help
My device is not ringing or vibrating when I receive a call or message
Try performing the following actions:
On the Home screen, click the Sounds icon. Verify that your sound profile is not set to either All Alerts Off or Silent.
If you have assigned a ring tone or alert to a specific contact, on the Home screen, click the Sounds icon. Click Set Contact Alerts.
Click the contact alert. Click Phone or Messages. Verify that the Volume field is not set to Silent and the Vibration field is not set
thank you for your reply but i don't think you read my question. i know all about changing the sound options. phone calls vibrate or ring based on what i set it to and so does everything else. when i receive an email it will ring or vibrate no problem. EXCEPT when i am having a conversation in email and the person reply's to my email, the phone doesn't ring or vibrate it just shows the little blinking indicator.