how does the web location field in the Content Information Page

Can you tell me how does the web location field in the Links section Content Information Page gets populated.

In our dev environment,  we changed the HttpServerAddress variable in the config.cfg in $DOMAN/ucm/cs/config directory to "servername:16200", the the web location field in the Content Information Page also changed to http://server-name::16200/cs/etc...  

In our test environment,  HttpServerAddress variable is also  "servername:16200",  however, the the web location field in the Content Information Page also changed to http://wctest.company.com/cs/etc... ,  which is what we want.  We're trying to get dev to do the same.