I posted a very similar question recently. But on further investigation I need to ask again. I need to track when and for how long various Cisco phones ring. I thought I found this in the Call Detail Reporting. BUT it turns out that this information is only available for calls that were picked up. The problem I am analyzing is trying to figure out why the phone is NOT being picked up. So I need ringing information to correlate with data from our call distribution system. I looked also at the call traces. But that only give me the SIP code for "ringing" and not more specific information as to when the phone started ringing and when it stopped. Any other thought about how I could track this? One thought I had was that for an individual I could add their line to my phone and I would be able to see whenever it rang. Kind of cumbersome but perhaps better than nothing. Any other thoughts??