What ports does Cisco Jabber use?
What are the port configurations for Cisco Jabber?
What ports need to be opened on my firewall for Cisco Jabber?
How do I allow Cisco Jabber traffic on my network?
What ports does Cisco Jabber for iPhone and iPad use?
Click on the following links to view a list of ports used by Cisco Jabber:
In case your experienced some problems sharing desktop
IM-Only Screen Share
The client randomly selects a port from the range.
The actual range may vary. To find the real range, run the command:
netsh interface ipv4 show dynamicportrange tcp
You can use the SharePortRangeStart and SharePortRangeSize parameters to narrow the range used for IM screen share. For more information on these
parameters, see the topic on Common Policies parameters in the Deployment and Installation Guide