Terminology

Microsoft Office Communications Server 2007 and Microsoft Office Communications Server 2007 R2 will reach end of support on January 9, 2018. To stay supported, you will need to upgrade. For more information, see Resources to help you upgrade your Office 2007 servers and clients.

Term Definition

Anonymous user

An external user who does not have credentials in the Active Directory® Domain Services.

A/V

audio/video

Edge server

An Office Communications Server that resides in the perimeter network and provides connectivity for external users and public IM connections. Each edge server has one or more of the following roles: Access Edge Server, Web Conferencing Edge Server, or A/V Edge Server.

External user

A user connecting from outside the corporate firewall. External users include anonymous users, federated users, and remote users.

External IP address

An IP address that is accessible from an external network (a network outside of an organization, such as the Internet). Also referred to as a public IP address. The Computer Management and Administration Tools for Office Communications Server use the term public for this address.

Federated user

An external user who possesses valid credentials with a federated partner and who therefore is treated as authenticated by Office Communications Server.

Internal IP address

An IP address that is accessible from the internal network of an organization (also referred to as a private IP address). The Computer Management and Administration Tools for Office Communications Server use the term private for this address.

PSOM

Persistent Shared Object Model protocol. A custom protocol for transporting Web conferencing content.

Private IP address

See "Internal IP address".

Publicly routable IP address

An IP address that is directly routable from outside an organizations firewall.

Remote user

An external user with a persistent Active Directory identity within the organization.

SIP

Session Initiation Protocol, a signaling protocol for Internet telephony.

SIP domain

The domain portion of a user's SIP URI used by Office Communications Server to direct communications. For example, if Bobs SIP URI is bob@contoso.com, then contoso.com is the SIP domain.

Web farm

A collection of IIS servers or an IIS server hosting content.