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.
I have the Cisco headset 561. This headset was working great. Then they upgraded our phones at work from Cisco 7841 model to the Cisco 9851. The headset will not work with the usb to usb or the usb to usb-c. Does anyone know what I need to get it to ...