LCS Server, SIP and ISA Server 2004http://blogs.technet.com/accessdenied/archive/2006/02/10/419282.aspxHere I summarize my thoughts on providing secure and feature rich external access to LCS utilizing ISA Server 2004. We also have a new Microsoft Partner with an LCS SIP Filter in Beta from www.collectivesoftware.com ! LCS Server, SIP and ISA Server 2004:en-USCommunityServer 2.1 SP1 (Build: 61025.2)