Welcome to our community and thanks for reaching out to the Zoom Developer Forum!
I am happy to help here!
I actually did some testing on my end and got the same results than you. My log_details array is empty.
Allow me some time to reach out to the Phone team and Engineering to gather some information to share with you.
Thanks for your patience while I work on this issue.
As I mentioned previously I was able to replicate this issue on my end and I just reached out to our Engineering team to learn more about this issue. (ZOOM-408620. internal ticket for reference)
I will come back with an update shortly
Sorry for the late response.
I am looking into this issue and I am not finding a way to report the merged calls.
As I said in my previous message, the log_details will get populated when the call is forwarded to another user and not when the call has been merged.
I will go ahead and create an internal ticket with more details and example API calls to see if I can get some suggestions from my team or a workaround and I will come back to you shortly.
Thank you for your patience while I worked on this issue further.
I reached out to some of my colleagues and also to our Engineering team and unfortunately we do not have a way to track if a call was merged or not, if you have noticed when calling the Get call log details endpoint, they show up in the response body as individual calls.
Feel free to make a feature request here for that issue: