Install kopano-webapp-contactfax by entering the following commands in the terminal:
sudo apt update sudo apt install kopano-webapp-contactfax
Description:
Kopano WebApp fax plugin
This package is a plugin for kopano-webapp, a web interface for Kopano from Zarafa. . Expand the new "create mail" dialog with contact's fax number in the To: field of the email.
Homepage: https://github.com/Kopano-dev/kopano-webapp
Version: 3.4.6+dfsg1-1
Section: universe/web