Live Communications Server 2005 with Service Pack 1 offers the following new improvements to Live Communications Server 2005.
A process that greatly reduces the administrative overhead of configuring organization-to-organization federation. Enhanced Federation uses DNS SRV resolution to locate the Access Proxy of a federated partner and mutual TLS (Transport Layer Security) to secure the connection. Enhanced federation therefore eliminates the need to specify the Access Proxy of each and every federation partner, as well as to provide the FQDN of your organization’s Access Proxy to those partners. Network administrators can either limit enhanced federation to specified domains or extend it to any and all domains.
Public IM connectivity
Public IM connectivity is the ability to exchange IM and presence information with individuals using the IM services provided by MSN®, Yahoo!®, and AOL®. Public IM connectivity is available only with Live Communications Server 2005 with SP1 and later. It also requires the purchase of additional service licenses and provisioning the connections using the Microsoft provisioning page.
New filters to control spim (unsolicited commercial IM) can be configured to suit the particular needs of each organization. For both public IM connectivity and enhanced federation, restricting the exchange of IM and presence information to names in each user’s Allow list also reduces the likelihood of receiving unsolicited commercial instant messages. Users of Microsoft® Office Communicator can choose to override this setting and accept IM from users not on their Allow lists.