The client can be used in the TU network as well as mobile. You can use it to connect to all Jabber users at the TU and on the internet or to communicate in so-called Jabber rooms.
Permanent Jabber rooms, in which you can communicate with several group members at the same time, can be set up by sending a request to email@example.com.
All information about Jabber can be found here.
If you have a Cisco device, you can also use Jabber to make phone calls or communicate via video chat and can be reached at your work number.