Call switch from Soft phone to Deskphone or vice versa

Account type (U.S.)
A brief description of the business : Law Firm
A high level description of the product or feature being requested: Call switch option or code to switch calls between Desk phone to Soft phone and vice versa
A typical use case scenario explaining how your business would use the feature: Easy switching of call from desk phone to app or the other way around
Benefit of such feature: This will prevent the caller or the one on the other line to hear hold music if they are being switch from desk phone to soft phone or vice versa
Number of Users and/or Digital Lines: 1

Idea