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DEFINITY® Enterprise Communications Server Release 7
Console Operations
555-230-700
Issue 4
June 1999
Glossary and Abbreviations
77
N
network
A series of points, nodes, or stations connected by communications channels.
P
PBX
Private branch exchange
PRI
See Primary Rate Interface (PRI).
Primary Rate Interface (PRI)
A standard ISDN frame format that specifies the protocol used between two or more
communications systems. PRI runs at 1.544 Mbps and, as used in North America, provides 23
64-kbps B-channels (voice or data) and one 64-kbps D-channel (signaling). The D-channel is the
24th channel of the interface and contains multiplexed signaling information for the other 23
channels.
principal
A terminal that has its primary extension bridged on one or more other terminals.
principal (user)
A person to whom a telephone is assigned and who has message-center coverage.
private network
A network used exclusively for the telecommunications needs of a particular customer.
public network
The network that can be openly accessed by all customers for local and long-distance calling.
Q
queue
An ordered sequence of calls waiting to be processed.
S
SAC
Send All Calls
simulated bridged appearance
The same as a temporary bridged appearance; allows the terminal user (usually the principal) to
bridge onto a call that had been answered by another party on his or her behalf.