Hi Brian -- Thanks for looking into this; I've definitely experienced this behaviour in the past and still notice it occasionally. In my use case, most calls land in a conference room and typically end there, no other crazy special sauce. Over the years, I had the opportunity to identify one of the root causes on my side: using mod_xml_cdr to post CDRs to a designated host, I've noticed if the latter is under stress, the call can enter the said zombie state until it receives a 200 OK. Fixing the issue on our end allowed the channels to transition quickly from CS_REPORTING and succumb gracefully. On Thu, 20 Jan 2022 at 13:44, Brian West <brian@freeswitch.com> wrote:

FreeSWITCHers,

I've been tracing an issue down for bit, Many on this list have experienced the situation, The end result is the session still shows in "show channels" but uuid_kill says "-ERR No such channel!", A gcore will still show the session in the session table when using our gdbinit, If you've experienced this problem before please let me know. Any feedback may help me narrow down the root cause.

Thanks, Brian West

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