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Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Instructions Manual
Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Instructions Manual
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DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Glossary and abbreviations 1647 GL H12 An ISDN information transfer rate for 1920-kbps data defined by CCITT and ANSI standards. handshaking logic A format used to initiate a data connection between two data module devices. hertz (Hz) A unit of frequency equal to one cycle per second. high-reliability system A system having the following: two control carriers, duplicate expansion interface (EI) circuit packs in the PPN (in G3r with CSS), and duplicate switch node clock circuit packs in the switch node (SN) carriers. See also duplicated common control , duplication, duplication option, and critical-reliability system. HNPA See home numbering-plan area code (HNPA). holding time The total length of time in minutes and seconds that a facility is used during a call. home numbering-plan area code (HNPA) The local area code. The area code does not have to be dialed to call numbers within the local geographical area. hop Nondirect communication between two switch communications interfaces (SCI) where the SCI message passes automatically without intermediate processing through one or more intermediate SCIs. host computer A computer, connected to a network, that processes data from data-entry devices. hunt group A group of extensions that are assigned the Station Hunting feature so that a call to a busy extension reroutes to an idle extension in the group. See also ACD work mode . Hz See hertz (Hz). I I1 The first information channel of DCP. I2 The second information channel of DCP. I2 Interface A proprietary interface used for the DEFINITY Wireless Business System for the radio-controller circuit packs. Each interface provides communication between the radio-controller circuit pack and up to two wire- less fixed bases. I3 Interface A proprietary interface used for the DEFINITY Wireless Business System for the cell antenna units. Each wireless fixed base can communicate to up to four cell antenna units.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Glossary and abbreviations 1648 GL IAS Inter-PBX Attendant Service ICC Intercabinet cable or intercarrier cable ICD Inbound Call Director ICDOS International Customer-Dialed Operator Service ICHT Incoming call-handling table ICI Incoming call identifier ICM Inbound Call Management IDDD International Direct Distance Dialing IDF Intermediate distribution frame IE Information element immediate-start tie trunk A trunk on which, after making a connection with a distant switching system for an outgoing call, the system waits a nominal 65 ms before sending the digits of the called number. This allows time for the distant system to prepare to receive digits. On an incoming call, the system has less than 65 ms to prepare to receive the dig- its. IMT Intermachine trunk in Inch INADS Initialization and Administration System ICLID Incoming Caller ID incoming gateway A PBX that routes an incoming call on a trunk not administered for Supplementary Services Protocol B to a trunk not administered for Supplementary Services Protocol B. information exchange The exchange of data between users of two different systems, such as the switch and a host computer, over a LAN. Information Systems Network (ISN) A WAN and LAN with an open architecture combining host computers, minicomputers, word processors, storage devices, PCs, high-speed printers, and nonintelligent terminals into a single packet-switching system.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Glossary and abbreviations 1649 GL INS ISDN Network Service inside call A call placed from one telephone to another within the local communications system. Integrated Services Digital Network (ISDN) A public or private network that provides end-to-end digital communications for all services to which users have access by a limited set of standard multipurpose user-network interfaces defined by the CCITT. Through internationally accepted standard interfaces, ISDN provides digital circuit-switched or packet-switched com- munications within the network and links to other ISDNs to provide national and international digital commu- nications. See also Integrated Services Digital Network Basic Rate Interface (ISDN-BRI) and Integrated Services Digital Network Primary Rate Interface (ISDN-PRI). Integrated Services Digital Network Basic Rate Interface (ISDN-BRI) The interface between a communications system and terminal that includes two 64-kbps B-channels for trans- mitting voice or data and one 16-kbps D-channel for transmitting associated B-channel call control and out-of-band signaling information. ISDN-BRI also includes 48 kbps for transmitting framing and D-channel contention information, for a total interface speed of 192 kbps. ISDN-BRI serves ISDN terminals and digital terminals fitted with ISDN terminal adapters. See also Integrated Services Digital Network (ISDN) andInte- grated Services Digital Network Primary Rate Interface (ISDN-PRI). Integrated Services Digital Network Primary Rate Interface (ISDN-PRI) The interface between multiple communications systems that in North America includes 24 64-kbps chan- nels, corresponding to the North American digital signal level-1 (DS1) standard rate of 1.544 Mbps. The most common arrangement of channels in ISDN-PRI is 23 64-kbps B-channels for transmitting voice and data and 1 64-kbps D-channel for transmitting associated B-channel call control and out-of-band signaling informa- tion. With nonfacility-associated signaling (NFAS), ISDN-PRI can include 24 B-channels and no D-channel. See alsoIntegrated Services Digital Network (ISDN) andIntegrated Services Digital Network Basic Rate Interface (ISDN-BRI). intercept tone A tone that indicates a dialing error or denial of the service requested. interface A common boundary between two systems or pieces of equipment. internal call A connection between two users within a system. International Telecommunications Union (ITU) Formerly known as International Telegraph and Telephone Consultative Committee (CCITT), ITU is an inter- national organization that sets universal standards for data communications, including ISDN. ITU members are from telecommunications companies and organizations around the world. See alsoBX.25 . International Telegraph and Telephone Consultative Committee See International Telecommunications Union (ITU) . interflow The ability for calls to forward to other splits on the same PBX or a different PBX using the Call Forward All Calls feature. intraflow The ability for calls to redirect to other splits on the same PBX on a conditional or unconditional basis using call coverage busy, don’t answer, or all criteria. internal measurements BCMS measurements that are made by the system. ACD measurements that are made external to the system (via External CMS) are referred to as external measurements.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Glossary and abbreviations 1650 GL in-use lamp A red light on a multiappearance voice terminal that lights to show which call appearance will be selected when the handset is lifted or which call appearance is active when a user is off-hook. INWATS Inward Wide Area Telephone Service IO Information outlet ISDN See Integrated Services Digital Network (ISDN). ISDN Gateway (IG) A feature allowing integration of the switch and a host-based telemarketing application via a link to a gateway adjunct. The gateway adjunct is a 3B-based product that notifies the host-based telemarketing application of call events. ISDN trunk A trunk administered for use with ISDN-PRI. Also called ISDN facility. ISDN-PRI terminal adapter An interface between endpoint applications and an ISDN PRI facility. ISDN-PRI terminal adapters are cur- rently available from other vendors and are primarily designed for video conferencing applications. Accord- ingly, currently available terminal adapters adapt the two pairs of video codec data (V.35) and dialing (RS-366) ports to an ISDN PRI facility. IS/DTT Integrated Services/digital tie trunk ISN Information Systems Network ISO International Standards Organization ISV Independent software vendor ITP Installation test procedure ITU International Telecommunications Union IXC Interexchange carrier code K kHz Kilohertz kbps Kilobits per second
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Glossary and abbreviations 1651 GL kbyte Kilobyte kg Kilogram L LAN Local area network LAP-D Link Access Procedure on the D-channel LAPD Link Access Procedure data LATA Local access and transport area lb Pound LBO Line buildout LDN Listed directory number LDS Long-distance service LEC Local exchange carrier LED See light-emitting diode (LED). light-emitting diode (LED) A semiconductor device that produces light when voltage is applied. LEDs provide a visual indication of the operational status of hardware components, the results of maintenance tests, the alarm status of circuit packs, and the activation of telephone features. lightwave transceiver Hardware that provides an interface to fiber-optic cable from port circuit packs and DS1 converter circuit packs. Lightwave transceivers convert electrical signals to light signals and vice versa. line A transmission path between a communications system or CO switching system and a voice terminal or other terminal. line appearance See appearance .
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Glossary and abbreviations 1652 GL line buildout A selectable output attenuation is generally required of DTE equipment because T1 circuits require the last span to lose 15–22.5 dB. line port Hardware that provides the access point to a communications system for each circuit associated with a tele- phone or data terminal. link A transmitter-receiver channel that connects two systems. link-access procedure on the D-channel (LAPD) A link-layer protocol on the ISDN-BRI and ISDN-PRI data-link layer (level 2). LAPD provides data transfer between two devices, and error and flow control on multiple logical links. LAPD is used for signaling and low-speed packet data (X.25 and mode 3) on the signaling (D-) channel and for mode-3 data communications on a bearer (B-) channel. LINL Local indirect neighbor link local area network (LAN) A networking arrangement designed for a limited geographical area. Generally, a LAN is limited in range to a maximum of 6.2 miles and provides high-speed carrier service with low error rates. Common configurations include daisy chain, star (including circuit-switched), ring, and bus. logical link The communications path between a processor and a BRI terminal. loop-start trunk A trunk on which, after establishing a connection with a distant switching system for an outgoing call, the system waits for a signal on the loop formed by the trunk leads before sending the digits of the called number. loss plan The overall plan, used in network design and management, for creating and maintaining consistent signal strength across the network. The term also applies to local management of signal strength to achieve appro- priate levels for specific applications. LSU Local storage unit LW C Leave Word Calling M MAC Medium access MADU Modular asynchronous data unit main distribution frame (MDF) A device that mounts to the wall inside the system equipment room. The MDF provides a connection point from outside telephone lines to the PBX switch and to the inside telephone stations.
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Glossary and abbreviations 1653 GL main-satellite-tributary A private network configuration that can either stand alone or access an ETN. A main switch provides inter- connection, via tie trunks, with one or more subtending switches, called satellites; all attendant positions for the main/satellite configuration; and access to and from the public network. To a user outside the complex, a main/satellite configuration appears as one switch, with one listed directory number (LDN). A tributary switch is connected to the main switch via tie trunks, but has its own attendant positions and LDN. maintenance Activities involved in keeping a telecommunications system in proper working condition: the detection and isolation of software and hardware faults, and automatic and manual recovery from these faults. management terminal The terminal that is used by the system administrator to administer the switch. The terminal may also be used to access the BCMS feature. major alarm An indication of a failure that has caused critical degradation of service and requires immediate attention. Major alarms are automatically displayed on LEDs on the attendant console and maintenance or alarming cir- cuit pack, logged to the alarm log, and reported to a remote maintenance facility, if applicable. Manual-In work mode One of four agent work modes: the mode in which an agent is ready to process another call manually. See Auto-In Work mode for a contrast. MAP Maintenance action process MAPD Multiapplication platform for DEFINITY MA-UUI Message-Associated User-to-User Signaling Mbps Megabits per second M-Bus Memory bus Mbyte Megabyte MCC Multicarrier cabinet MCS Message Center Service MCT Malicious Call Trace MCU Multipoint control unit MDF Main distribution frame MDM Modular data module
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Glossary and abbreviations 1654 GL MDR Message detail record MEM Memory memory A device into which information can be copied and held, and from which information can later be obtained. memory shadowing link An operating-system condition that provides a method for memory-resident programs to be more quickly accessed, allowing a system to reboot faster. message center An answering service that supplies agents to and stores messages for later retrieval. message center agent A member of a message-center hunt group who takes and retrieves messages for voice-terminal users. MET Multibutton electronic telephone MF Multifrequency MFB Multifunction board MFC Multifrequency code MHz Megahertz MIM Management information message minor alarm An indication of a failure that could affect customer service. Minor alarms are automatically displayed on LEDs on the attendant console and maintenance or alarming circuit pack, sent to the alarm log, and reported to a remote maintenance facility, if applicable. MIPS Million instructions per second MIS Management information system MISCID Miscellaneous identification MMCS Multimedia Call Server MMCH Multimedia call handling MMI Multimedia interface
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Glossary and abbreviations 1655 GL MMS Material Management Services MO Maintenance object modem A device that converts digital data signals to analog signals for transmission over telephone circuits. The ana- log signals are converted back to the original digital data signals by another modem at the other end of the cir- cuit. modem pooling A capability that provides shared conversion resources (modems and data modules) for cost-effective access to analog facilities by data terminals. When needed, modem pooling inserts a conversion resource into the path of a data call. Modem pooling serves both outgoing and incoming calls. modular processor data module (MPDM) A processor data module (PDM) that can be configured to provide several kinds of interfaces (RS-232C, RS-449, and V.35) to customer-provided data terminal equipment (DTE). See also processor data module (PDM). modular trunk data module (MTDM) A trunk data module that can be configured to provide several kinds of interfaces (RS-232, RS-449, and V.35) to customer-provided data terminal equipment. modulator-demodulator See modem . monitored call See active-notification call . MOS Message-oriented signaling MPDM Modular processor data module MS Message server ms Millisecond MS/T Main satellite/tributary MSA Message servicing adjunct MSG Message service MSL Material stocking location MSM Modular System Management
DEFINITY ECS Release 8.2 Administrator’s Guide 555-233-506 Issue 1.1 June 2000 Glossary and abbreviations 1656 GL MSS Mass storage system MSSNET Mass storage/network control MT Management terminal MTDM Modular trunk data module MTP Maintenance tape processor MTT Multitasking terminal multiappearance voice terminal A terminal equipped with several call-appearance buttons for the same extension, allowing the user to handle more than one call on that same extension at the same time. Multicarrier cabinet A structure that holds one to five carriers. See also single-carrier cabinet . Multifrequency Compelled (MFC) Release 2 (R2) signaling A signal consisting of two frequency components, such that when a signal is transmitted from a switch, another signal acknowledging the transmitted signal is received by the switch. R2 designates signaling used in the United States and in countries outside the United States. multiplexer A device used to combine a number of individual channels into a single common bit stream for transmission. multiplexing A process whereby a transmission facility is divided into two or more channels, either by splitting the fre- quency band into a number of narrower bands or by dividing the transmission channel into successive time slots. See also time-division multiplexing (TDM) . multirate The new N x DS0 service (see N x DS0). MWL Message-waiting lamp N N+1 Method of determining redundant backup requirements. Example: if four rectifier modules are required for a DC-powered single-carrier cabinet, a fifth rectifier module is installed for backup. N x DS0 N x DS0, equivalently referred to as N x 64 kbps, is an emerging standard for wideband calls separate from H0, H11, and H12 ISDN channels. The emerging N x DS0 ISDN multirate circuit mode bearer service will provide circuit-switched calls with data-rate multiples of 64 kbps up to 1536 kbps on a T1 facility or up to 1920 kbps on an E1 facility. In the switch, N x DS0 channels will range up to 1984 kbps using NFAS E1 inter- faces.