The Neighbor feature is intended for teams that share connections. While working in the office, if you sit next to your colleagues, you may not want to hear your voice come out of their speakers when you share the same Shout Down connection. If you request to be neighbors with the people around you, you will only hear the distant end come over the connection.
When you are not sitting with your designated neighbors, you will want to be able to hear them on each connection. On the login screen, enable the Working Remotely checkbox (Figure 1):
Figure 1 Working Remotely
This will disable all your neighbors for that login.
Note: If you want to enable the Neighbor feature, please contact your internal IT team or Cloud9 Support at c9helpdesk@symphony.com