I have a 3CX PBX installed on a remote (very) Windows 2003 server that has been running fine for months, with 20 internal extensions and 2 outside VoIP lines. After restarting the 3CX services the 2 VoIP lines won't register, in fact they don't even attempt to register. The Windows firewall is turned off. A packet sniffer on the remote server shows there aren't even attempts to connect to the VoIP providers server. Any help or advice would be welcomed. Thanks.