IETF (Internet Engineering Task Force)An open community of network designers, operators, vendors, and researchers concerned with the evolution of Internet architecture and the smooth operation…
impersonationThe ability of a thread to run in the security context of a security principal different from the security principal that started the process.
In-Country/Region Number FormatThe string that is used to define how to create an in-country/region number to use when making calls from a dial plan. [Exchange 2007]
in-place upgradeIn Exchange Server documentation, this is the scenario in which you upgrade to a newer version of Microsoft Exchange software on a single computer.
informational announcementAn audio message that is played when a user first dials in to a Unified Messaging system that describes some temporary condition of interest to all users.
Intelligent Message FilterThe underlying technology of the Exchange Server content filter that evaluates inbound mail and assesses the probability that an inbound e-mail message is…
International Access CodeThe prefix that is used to direct a call internationally. The International Access Code is 011 in the United States and 00 in much of the rest of the…
International Number FormatThe string that is used to define how to dial someone from outside of their country/region. [Exchange 2007]
InteroperabilityThe ability of systems, units, or forces to provide services to or accept services from other systems, units, or forces and to use the services so…
IP Allow listA filtering list that is used by the Connection Filter agent in Exchange Server 2007.
IP Block listA filtering list that is used by the Connection Filter agent in Exchange Server 2007. IP addresses on the IP Block list are considered spam.
IP gatewayA third-party hardware device or product that connects a legacy PBX to a LAN. An IP gateway translates or converts TDM or telephony circuit-switched…
IWA (Integrated Windows Authentication)An authentication method in which the user name and password, also called credentials, are hashed before they are sent over the network.