Hi David,

This is not available. Click to dial launch when you click on any telephone or fax number on websites that support callto:, Tel:, and fax: protocols.

You can submit a feature request for this in our Ideas Portal. Please check the guidelines on article about Submitting and Voting for Product Ideas

adding call to for excel database phone numbers is a number 1 request for me

This isn't an RC/VoIP/UC feature - this is something that needs to be added to excel if you wish to click to dial. You'll need to set your Windows callto/Tel protocols as Mary mentioned, but you can make simple "call to" formulas yourself in Excel. Just ref this article: https://support.dixa.help/en/articles/109-click-to-call-in-excel