Great tool for testing Remote connection to Exchange.
www.testexchangeconnectivity.com
info here
I vote for a tool like this for OCS remote connectivity, incl. AV, Webconference, ISA/reverse proxy etc.
I know that OCS and Edge server problems isn’t just the external firewall ports and external Certificate, problems can also be internal firewalls, Loadbalancer and internal certificate incl. OCS configuration. If a OCS tool like this just could test all the external configuration – certificate and ports / firewall on the Edge server this would be nice.
(but creating a tool for OCS edge might not be as easy as posting this blog) …… :)