Someone was (I blocked it manually from net fw) slowly trying different SIP URLs looking for valid ones. It was about one try every 30 - 90 seconds. I'm not seeing related events in the ExpressWay-Core so I'm assuming it blocked it. We only use it fo...

We were running sip88xx.14-1-1 and after the CUCM v14 SU1 update, it set sip88xx.14-0-1 as the active load. This caused the phones to downgrade. Do I have to install the updated phone firmware again to the inactive partition before switching? Does no...

I'm seeing somewhat conflicting messaging when it comes to requiring vCenter.Here, it states it is mandatory when running on third party spec based hardware:"VMware vCenter is mandatory when deploying on UC on UCS Specs-based and Spec-based 3rd-party...

Post upgrade, we have a number of 7940 phones that for some reason look like they switched to SIP firmware and are trying to auto-register? Tried factory resetting, but didn't help. The device protocol in CUCM is SCCP so not sure where these phones a...