Welcome to Cisco Support Community. We would love to have your feedback.
For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.
Anyone have a 7921 phone that was working, then won't power on. It still shows the battery charing on the screen?
So you press and hold the red button (end call) key and doesn't power up?
If not, then you should RMA the phone.