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Unified Messaging Terminology

 

Applies to: Exchange Server 2010 SP3, Exchange Server 2010 SP2

Topic Last Modified: 2009-12-10

The following table contains the terms and definitions that are used with Microsoft Exchange Server 2010 Unified Messaging.

audio codec

A digital encoding of an analog voice signal. Most audio codecs provide compression of the data, at the cost of some loss of fidelity when the data is recovered. Audio codecs vary in their perceived sound quality, the bandwidth that is required to use them, and the system requirements that are needed to do the encoding.

Audio notes

Text-based notes that can be added to a voice mail message that has been received in Office Outlook 2007, Outlook 2010, or Outlook Web App.

auto attendant

A software system that answers calls, plays prompts or instructions, and then collects input from the caller as touch tones or speech. Auto attendants can direct a call to telephone numbers or named users or to entities (for example, departments) that the caller specifies, without intervention from a human operator.

Automatic Speech Recognition (ASR)

A technology that enables a computer to match human speech to a predefined set of words or phrases.

call answering

The process by which a caller interacts with a voice mail system if the number they originally called isn't answered. Typically, the system will play a greeting or other prompt, and allow the caller to record a voice message.

Call Answering Rules

A form of call answering in which the user for whom the call is being answered can specify rules to determine the behavior callers experience. The user can specify conditions to be evaluated, greetings, and choices to be provided to the caller, and actions (for example, transfer or leave a message) to be taken as a result of the caller's choice.

conditional call forwarding

A set of conditions that are chosen by a user to be used when they receive an incoming call. The call is redirected based on the conditions that are set.

Dial by Name

A feature that enables a caller to spell a person’s name using the keys on a telephone (ABC=2, DEF=3, etc.).

dial plan

For Exchange Unified Messaging, this is a set of telephony-capable endpoints that share a common numbering plan. The details of the plan are determined by the telephone system to which UM is connected. In the simplest case, this can be a private branch exchange (PBX) with its extensions, each with a unique, fixed-length number.

dialing rule group

Dialing rule groups are created to enable telephone numbers to be modified before they're sent to the PBX or IP PBX for outgoing calls. Dialing rule groups may remove digits from or add digits to telephone numbers that are being used to place calls by a Unified Messaging server.

Each dialing rule group contains dialing rule entries that determine the types of in-country/region and international calls that users within a dialing rule group can make. Each dialing rule group must contain at least one dialing rule entry.

fax partner

UM fax partners provide applications or services that can accept calls handed off by UM when a fax tone is detected. The partner's product or service then receives the fax data, creates a message, and delivers it to the UM-enabled user as an e-mail with a .tif attachment. These messages will appear in the Fax search folder in Office Outlook 2007, Outlook 2010, and Outlook Web App.

hunt group

A set of extensions that are organized into a group, over which the PBX or IP PBX “hunts” to find an available extension. A hunt group is used to direct calls to identically-capable endpoints or to an application, such as voice mail.

In-Country/region number format

The In-Country/region number format specifies how a user's telephone number should be dialed by the Unified Messaging server from a different dial plan that has the same country code. This is used by an auto attendant and when an Outlook Voice Access subscriber searches and tries to call the user in the directory.

This entry consists of a number prefix and a variable number of characters (for example, 020xxxxxxx).

informational announcement

An audio message that is played when a caller first dials in to a Unified Messaging system, which may describe some interest.

International Access Code

The 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 world.

International Number Format

The string of digits that is used to define how to dial someone from outside a specific country.

Internet Protocol Private Branch eXchange (IP PBX)

A telephone switch that natively supports voice over IP (VoIP). An IP PBX uses VoIP-based protocols to communicate with IP-based hosts such as VoIP telephones over a packet-switched network. Some IP PBXs can also support the use of traditional analog and digital phones.

IP gateway
  1. A 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 protocols to packet switched protocols that can be used on a VoIP-based network.
  2. The Exchange Unified Messaging representation of any SIP peer with which it can communicate using VoIP protocols. It may represent a device that interfaces with a legacy PBX, or an IP PBX, or Microsoft Office Communications Server.
matched name selection method

The mechanism used to help a caller differentiate between users with names that match the touchtone or speech input.

message waiting indicator

A signal that indicates the presence of one or more unread voice messages. For voice mail systems, this is often a lamp on the phone or a stutter dial tone.

Microsoft Exchange Unified Messaging service

A service that implements Unified Messaging capabilities for UM-enabled users.

missed call notification

An e-mail message that is sent to a UM-enabled user that indicates that someone called but did not leave a voice message.

National Number Prefix

A prefix that is used to direct a call as an in-country call. In the United States, this prefix is 1. In the United Kingdom and most the rest of the world, this prefix is 0.

number mask

A set of numbers and wildcard characters that is used to determine the telephone number that the Unified Messaging server will dial. An 'X' represents a single digit (0 … 9). A '*' represents any number of such digits.

numeric extension

A string of digits that doesn’t contain a ‘+’ or a country/region code. In dial plans, extensions are required to have a specified length.

outdialing

A process in which Unified Messaging (UM) dials or transfers calls. Unified Messaging generally receives calls, but sometimes dials calls. For example, outdialing occurs when a Unified Messaging auto attendant transfers a call to a user's extension, or when a UM-enabled user uses Play on Phone from Outlook.

Outlook Voice Access

A series of voice prompts that allows authenticated callers to access their e-mail, voice mail, calendar, and contact information using a standard analog, digital, or mobile telephone. Outlook Voice Access also enables authenticated callers to navigate their personal information in their mailbox, place calls, locate users, and navigate the system prompts and menus using DTMF, also known as touchtone, or voice inputs.

Outside Line Access Code

The prefix that is used by UM (or a person using an internal extension on the PBX) to access an outside line. This prefix is typically 9.

pilot identifier

A telephone number that points to a hunt group and is the access number for calls that are routed to Unified Messaging servers. This is also sometimes called a pilot number.

PIN

A passcode that a user enters on the telephone to access their Exchange mailbox.

Play on Phone

A Unified Messaging feature that users can use to play their voice messages or play and record personalized voice mail greetings over a telephone.

Private Branch eXchange (PBX)

A private telephone network in an organization. Individual telephone numbers or extension numbers are supported, and calls are automatically routed to them. Users can call each other using extensions, even across distributed locations.

prompt

An audio message played over the telephone to explain valid options to users.

Protected Voice Mail

A UM feature that uses information rights management to encrypt the contents of voice messages and specify the operations permitted on them. Protection can be caused by caller action (marking the message as private), or by system policy.

reset

When a PIN or a password is reset, the system randomly chooses a new, temporary PIN or password. The user is required to change the temporary PIN the next time that they sign in to Outlook Voice Access.

reverse number lookup (RNL)

A method used to try to locate the name of a person, from a directory or other information store, based on a telephone number.

RTAudio codec

An advanced speech codec that is designed for real-time two-way VoIP applications such as gaming, audio conferencing, and wireless applications over IP. RTAudio is the preferred Microsoft audio codec and is the default codec for Microsoft Unified Communications platforms.

SIP notification

A SIP notification is a SIP message sent from one SIP peer to another to advise it of a change.

SIP peer

A SIP-enabled device that provides telephony communications between an IP gateway or SIP-enabled IP PBX and a Unified Messaging server.

star out

An action a caller can perform when they are dialed in to a Unified Messaging auto attendant but they want to be able to get to Outlook Voice Access to get their e-mail and voice mail. To do this, they press the star key while the auto attendant prompts are being played.

subscriber access number

A number that is configured in a PBX and on a UM dial plan that allows users to access their Exchange mailbox using Outlook Voice Access. In some cases, this may be configured to be the same number as the pilot number (also called a pilot identifier) on the PBX or IP PBX and the UM hunt group.

system prompt

A short audio recording, installed on the Unified Messaging server, which is played to callers by the server. System prompts are used to welcome callers and to inform them of their options when they use the Unified Messaging system.

telephone user interface (TUI)

An interface that is used to navigate the menus of a Unified Messaging system using DTMF, also known touchtone, inputs.

Text-to-Speech (TTS)

Technologies for translating or converting typewritten text into speech.

UM IP gateway

(See IP gateway.) A UM IP gateway is the Exchange Unified Messaging representation of any SIP peer with which it can communicate using VoIP protocols. It may represent a device that interfaces with a legacy PBX, or an IP PBX, or Microsoft Office Communications Server.

UM worker process

A process that's created during the startup of the Microsoft Exchange Unified Messaging service. The UM service, on receiving a request to handle an incoming call, immediately redirects the request to a UM worker process, which carries out all subsequent interactions with the caller.

UM Worker Process Manager

A component that handles the creation and monitoring of all the UM worker processes that are created.

Unified Messaging

An application that consolidates a user’s voice mail and e-mail into one mailbox, so that the user only needs to check a single location for messages, regardless of type. The e-mail server is used as the platform for all types of messages, making it unnecessary to maintain separate voice mail and e-mail infrastructures.

Unified Messaging server role

A set of components and services that enable voice and e-mail messages to be stored in a user’s single mailbox. Users can also access their Exchange mailbox from a telephone or a computer. The Unified Messaging server role is included in Exchange Server 2007 and Exchange 2010.

voice mail

A system that records and stores telephone messages in a user mailbox.

Voice Mail Preview

A feature that provides text, transcribed from the audio recording, on a voice message when it is delivered.

voice message

An electronic message with a primary content of digitized audio.

Voice over IP (VoIP)

The practice of using an IP data network to transmit voice calls.

VoIP gateway

A computer device that converts between circuit-switched telephony protocols and VoIP protocols.

voice user interface (VUI)

An interface that is used to navigate the menus of a Unified Messaging system using speech inputs.

welcome greeting

A greeting that is played when an external caller calls in to a UM auto attendant or when an Outlook Voice Access user or another caller calls a subscriber access number that is configured on a UM dial plan. The default welcome greetings can be changed by a customer to make them specific to an organization or location.

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