Webex is a cloud-based messenger and team collaboration app from Cisco Systems.
The application can be used in combination with the Cisco telephone system and thus enables calls to be made via the RWTH telephone system using your business telephone number or via Webex cloud calling.

In addition, users of the app have a wide range of functions at their disposal, such as the chat function or the option to hold meetings.

All Webex functions explained, as well as instructions for use and linking with the Cisco telephone system can be found here.