Telecommunications Signaling

Glossary

A-B

Access
Context: general
The link between a customer and a network node
Access Significance
Context: DSS
Relevance of a message to the originating and terminating accesses
Access Unit (AU)
Context: DSS
The point at which access is gained to a packet-switched public data network
Acknowledged Operation
Context: DSS
A Layer 2 form of working in which each frame is numbered, thus permitting error control
Active Connection
Context: IP (TCP)
A user requests the establishment of a TCP connection
Address Resolution Protocol (ARP)
Context: IP
An IP Link Layer Protocol that translates IP addresses into physical addresses
Application
Context: general
An activity or process that a user wishes to perform
Application Context (AC)
Context: IN
A combination of Application Service Elements and their relationship
Application Entity (AE)
Context: OSI
The functions that Applications use to communicate
Application Management
Context: CCSS7 (OMAP)
The exchange of management information between signalling points
Application Part (AP)
Context: OSI
A set of OSI Layer 7 functions
Application Service Element (ASE)
Context: OSI
A function, or a group of functions, within an Application Entity
Architecture
Context: general
The structured approach to the specification of signalling systems
Associated Mode of Operation
Context: CCS
The transfer of messages between directly connected network nodes
Association Control Service Element (ACSE)
Context: OSI
An Application Service Element used to establish an association between two Application Layers
Asynchronous Transfer Mode (ATM)
Context: general
A form of packet (or cell) switching
B Channel
Context: DSS
An access traffic channel
Backward Message
Context:...

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