What support does the ZIH offer for the Cisco WebEx application?

In addition to telephony (calling), the Cisco WebEx application also offers the basic services messaging (chat) and meetings (web conference). The ZIH currently only supports the Calling component (telephony via the TU Dresden 463-0 telecommunications system).
The other free basic services that Cisco offers in WebEx are not actively hidden, but there is no support for them!
Support on smartphones or private devices (BYOD) is limited to the Cisco WebEx application in the calling function.