You may want to enable external users to access Office Communications Server features for these reasons:
- To enable your organization’s users to use Office
Communications Server features while working remotely, outside your
firewalls (and without any need for a VPN connection).
- To enable users from other organizations to collaborate with
your internal users.
To enable external user access, deploy one or more Edge Serversin a perimeter network (also known as a DMZ, demilitarized zone, or screened subnet). Edge Server is a server role in Office Communications Server.
Including Edge Servers in your deployment provides the following benefits:
Secure access for your organization’s remote users.Your
organization’s users can use Office Communications Server
features—including secure instant messaging (IM), presence,
conferencing, and audio/video (A/V) features—even while they are
working outside of your organization’s firewalls.
Federation with other organizations.You can establish a
federation with another organization that runs Office
Communications Server; thereafter, users of the federated
organization who have been validated by Office Communications
Server in that organization are recognized by your deployment as
External user conference participation.External users—even
those who are not part of your organization or a federated
organization (anonymous users)—can be invited to join your
organization’s conferences. If the conference includes audio and
video, these media can be shared with anonymous users as well.
Public IM connectivity.Your organization’s users can use IM
to communicate with users of IM services provided by the MSN
network of Internet services, Yahoo!, and AOL. (Public IM
connectivity requires a separate license.)
Desktop sharing with external users.Your users can use the
desktop sharing feature to transmit a view of their desktops while
collaborating with external users. For details about desktop
in New Server
Features in the Getting Started documentation.
Mobile access.Cellular phone users who run a supported
version of a unified communications client on their mobile devices
can send and receive calls as though the telephones on their mobile
devices were unified communications clients in the enterprise
network. These mobile users also have IM and presence functionality
on their mobile devices.