I have been selling Asterisk based systems for about two years. We have one system where the customer does not have an internet connection, just some phones (6), a Gateway and the system. They do have a PC that uses a wireless Hotspot for the occasional email. My system manufacturer insists that the system was made for the internet and must have an internet connection to run properly. Granted the clock drifts off like going over a cliff in a couple of days. They have to connect to the programming GUI and set the clock from a PC. I have stressed to them that they need a real internet connection. I don’t know if they will, they are a seasonal store. So my question to all the gurus: Besides the Time Server needed, what does an Asterisk system need from the internet? My manufacturer either won’t or can’t tell me if they are doing anything.