Lucent Technologies DEFINITY Enterprise Communications Server Release 8.2 Administration For Network Connectivity Instructions Manual

COR 
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COR
See Class of Restriction (COR).
COS
See Class of Service (COS).
CP
Circuit pack.
CSN
See circuit-switched network.
CSU
Channel service unit.
cyclic redundancy checking (CRC)
A method for detecting read, transmit, and write errors in data. At the 
transmission end, the system treats a block of data as a single binary number, 
divides it by some specified binary number, and appends the remainder...

data path   Glossary
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data path
The end-to-end connection used for a data communications link. A data path is 
the combination of all elements of an interprocessor communication in a DCS.
data port
A point of access to a computer that uses trunks or lines for transmitting or 
receiving data.
data service unit (DSU)
A device that transmits digital data on transmission facilities.
data terminal equipment (DTE)...

DID 
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DID
Direct Inward Dialing.
digital communications protocol (DCP)
A proprietary protocol used to transmit both digitized voice and digitized data 
over the same communications link. A DCP link is made up of two 64-kbps 
information (I-) channels and one 8-kbps signaling (S-) channel. The DCP 
protocol supports 2 information-bearing channels, and thus two telephones/data 
modules.
digital signal level...

DSU   Glossary
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DSU
Data service unit.
DTDM
Digital-terminal data module.
DTE
Data-terminal equipment.
EE-1
A digital transmission link with a capacity of 2.048 Mbps (2,048,000 bits per 
second). The European equivalent of the T- 1. It can support 30 multiplexed 
64-Kbps voice and data channels plus separate 64-Kbps channels for signalling 
and framing (synchronization). Also spelled E1.
EIA
See Electronics...

facility 
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Ffacility
A telecommunications transmission pathway and associated equipment.
facility-associated signaling (FAS)
Signaling for which a D-channel carries signaling only for those channels on 
the same physical interface.
FA S
Facility-associated signaling
framing
The data-formatting conventions that allow a receiver to synchronize with the 
transmitting end of a circuit. For example, T-1 frames...

High Density Bipolar 3-Bit Substitution (HDB3)   Glossary
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High Density Bipolar 3-Bit Substitution (HDB3)
HDB3 line coding is similar to Bipolar 8 Zero Substitution (B8ZS) in some 
ways. It replaces every 4 consecutive zero in a stream of AMI-encoded data 
(see line coding) with either of two sequences. If there has been an even number 
of 1s since the last substitution, it substitutes the pattern 1 0 0...

interserver routing table 
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interserver routing table
A database that keeps track of the interserver routing tables on a multiserver 
MMCX network. When a server sets up a Point-to-Point Protocol connection 
with a remote server, the local server looks up the dialed-digit sequences in the 
interserver routing table. (Calls that involve only one MMCX server are routed 
using the dial-plan table.)
I/O base...

LAN   Glossary
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LLAN
See local area network.
LAN emulation (LANE)
A technique that lets AT M networks communicate with Ethernet LAN cards. 
ATM service is not widely available at the desktop and ATM interface cards are 
expensive, so ATM networks usually emulate LANs when communicating with 
user terminals. Typically, a LAN-emulation configuration server (LECS) 
keeps track of the relationships between ATM-network...

link-access procedure on the D-channel (LAPD) 
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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...

MDR   Glossary
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MDR
Message detail record.
MIB
See Management Information Base (MIB).
MMCH
Multimedia call handling.
MSA
Message Server Adjunct.
multicasting
A transmission method that promotes efficient bandwidth utilization on a 
multimedia data network when several parties are transmitting and receiving 
simultaneously. Normally, each party sends a separate video stream to each of 
the other parties and receives a...