We have been seeing in Version 15.5.5 where calls in a queue should be offered to agents based on the caller in the queue longest offered first, but what is happening is the second oldest caller is offered once i a while. I have attached some data from the data base showing the call times and segments, plus some of the log that shows the queues and the polling changes. Is this behavior by design or a bug? Call Data - Top list is the call that entered the Queue First, but was answered last Here is some of the log showing a current Queue Status * Queue 804 cin: act=3/stat=3 poll=2 serv=1 - QC(MYMZDLUSUICA) 'ConnectedToAgent 357' [10/23/2017 11:54:59 AM] (185 sec.) from 'Unavailable' (4434740262) - QC(UOIUUCNRPZLG) 'WaitingInPoll' [10/23/2017 11:55:45 AM] (139 sec.) from 'MINNEAPOLIS MN' (9526497686) - QC(KEQPBHRVQUFM) 'WaitingInPoll' [10/23/2017 11:56:02 AM] (122 sec.) from 'PALMERSHEIM,MAT' (3202400033) I attached the chunk from the log where it seems 3CX switched to the other call for offering to agents.