Using the softphone feature allows you to easily place, receive, and manage telephone calls using your computer or mobile device and an internet connection.
Using the chat feature, you can instant message with an individual colleague or a group of colleagues.
ServiceNow: Submit a Help request.
Telecom Hotline: Call 301.400.6000
Help Desk: Call 301.295.9800
Cisco provide additional documentation about Jabber, although not all the features they include are available at USUHS.