Definicija: A Microsoft license offered on a per-user, per-month subscription price which provides organizations with the capability to connect their existing base of Live Communications Server-enabled users to the top public IM service providers (MSN, AOL, and Yahoo!).

Definicija: A contact who uses an instant messenger client from AOL, Yahoo!, MSN, or the Windows Live network of Internet services.

Definicija: A Microsoft license offered on a per-user, per-month subscription price which provides organizations with the capability to connect their existing base of Live Communications Server-enabled users to the top public IM service providers (MSN, AOL, and Yahoo!).