Overview Call queuing is a great way for phone operators to manage high volume of calls. Ultra Thin Patch Cable more. For ShoreTel systems version 12.x and lower on rare occasions a call will not fully disconnect and a received call will show as connected and use up one of the available ports even though the original caller has been disconnected. This article explains how to forcibly disconnect the call so it does not use up one an available port on the switch. Instructions to Forcibly Disconnect Call Note: A server reboot will fix the issue, however if the issue needs to be correct during production hours, this fix can be applied without affecting other users. For this particular client below, their requirements are that callers are not to be kept in the call queue for more than a few minutes. Call flow ends at a voicemail system to avoid callers remaining in the call queue indefinitely. In the example shown in the screenshot below, a call has been active for approximately 1 hour in the ‘Operator’ workgroup.