UC Corner

Phone reset issue is the most common yet most nasty issue (especially when it's "sporadic" or "intermittent"). Pleas...

Most IT guys would know about KISS rule (Keep It Simple Stupid). However, not too many really understand and utilize it. Let's take a lo...

In an ideal world, version 6.x is better than 5.x, version 7.x is better than 6.x, and so on so forth. However, we're not in an ideal w...

NTP is critical in Cisco voice products. Time synchronization not only provides consistent time in trace files, but also a mandatory requir...

For now, to integrate MOC (Microsoft Office Communicator) with Cisco IP phone system (CUCM) you need CUPS for phone presence and phone contr...

In order for CUPC to receive presence information, it has to connect to a presence node. Just to remind you again, "presence node"...

On CUPC > Help > Show Server Health, sometimes you would see failed items with the message "invalid credential", such as ...