I have a customer with a Mitel 5000 v5.1 SP4 PR5 (5.1.0.52) with 32 Mitel 5360 phones, and on a few occasions, like now, all the phones just slow down, with a delay of several seconds to answer or dial, they just kind of become unresponsive for a couple seconds. CPU utilization never exeeds 50%, and is generally only around 20%.
This has happened a few times, reboot seems to clear it up for a while then it recurs. I am doing a weekly reboot on Thursdays at 5:00am (this morning was the last one) and the customer is complaining it is happening again today starting at 10:00am. Any ideas what is going on here?
EDIT: Just spoke to the customer, they are also stating that that sometimes they dial an extension that is idle, and the system says it is busy... Weird.