Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
Hi guys,we have had the same problem, 6921 phones had some strange behavior, not downloading localisation, wrong timezone, registering to secondary callmanager, no ring-back on calls...I did upgrade the FW by installing only the FW package to CUCM, b...