When logging into TNG other than from the server, I have no calls in the call list page:
If you can view the calls on the TNG server and all is working,
once you can log into TNG from any PC on the network you must
have the same access as on the TNG server.
If not, then it can only be an browser issue. TNG only supports
Internet Explorer
Firefox
Check your settings, for example clear the history, cookies,etc.
Close IE and open a new session, then open the TNG page.