Datasheet

Office Communications Server 2007 R2 Product Overview – v 2009.1.30 56
Federated conferencing
Users in federated domains are considered to be authenticated for the purpose of joining on-premises
conferences. A federated user cannot join a meeting as a presenter but can be promoted to a presenter
during the meeting. Federated users cannot organize conferences that are hosted in another
organization’s domain.
Support for partners with multiple domain names
Enhanced federation now uses Subject Alternate Names (SANs) in certificates to support organizations
that have multiple domain names. To make itself eligible for enhanced federation, an organization with
multiple domain names can install a certificate that supports SANs on Live Communications Server 2005
SP1, Access Proxy, Office Communications Server 2007 R2, or Access Edge server.
Improved monitoring and throttling capabilities for federated connections
With Office Communications Server 2007 R2, organizations can actively monitor connections with
federated domains and limit the amount of traffic from any federated domain that is not on the Allow
list. Additionally, Office Communications Server 2007 R2 limits the number of internal users with which
the federated domains can communicate. Organizations can monitor this activity on the Access Edge
server using the Open Federation tab on the Status pane in Office Communications Server 2007
Computer Management snap-in. If a federated domain has a legitimate, but higher than average,
volume of communications with the organization, the organization can add the domain to its Allow list.
If an organization suspects malicious activity, it can block the domain. For more details, see the
managing federated partner access information in the Microsoft Office Communications Server 2007
Administration Guide.
Microsoft Forefront solutions for Office Communications Server 2007 R2
Instant messaging is a staple in corporate communications. It is easy to use, fast, and allows users to
hold live conversations with their colleagues and exchange files quickly and easily. To avoid the transfer
and proliferation of malicious content, IM environments require an antivirus, file-filtering, and content-
filtering solution that can prevent the spread of viruses by scanning all messages and file transfers in real
time, with minimal impact on server performance or delivery times of messages. Microsoft Forefront™
Security for Office Communications Server provides real-time protection by scanning and filtering both
instant messages and files transferred via IM.
Forefront Security for Office Communications Server provides powerful features that include:
 Antivirus scanning using multiple antivirus scan engines
 File filtering by file type, name, extension, or size
 Comprehensive notifications for the IT administrator and message sender
 Performance counters for Forefront Security for Office Communications Server health and
activity monitoring
 Keyword filtering for IM message content
Forefront Security for Office Communications Server provides powerful protection for instant messaging
servers and is the antivirus solution for Office Communications Server 2007 environments.