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Glossary
Glossary
AS | Application Server. A logical entity serving a specific Routing Key. An example of an |
| AS is a virtual switch element handling all call processing for a unique range of PSTN |
| trunks, identified by an SS7 SIO/DPC/OPC/CIC_range. Another example is a virtual |
| database element, handling all HLR transactions for a particular SS7 DPC/OPC/ |
| SCCP_SSN combination. The AS contains a set of one or more unique Application |
| Server Processes (ASPs), of which one or more is normally actively processing traffic. |
| Note that there is a 1:1 relationship between an AS and a Routing Key. |
ASP | Application Server Process. A process instance of an Application Server (AS). An ASP |
| serves as an active or backup process of an Application Server (for example, part of |
| a distributed virtual switch or database). Examples of ASPs are processes (or process |
| instances) of MGCs, IP SCPs or IP HLRs. An ASP contains an SCTP endpoint and may |
| be configured to process signaling traffic within more than one Application Server. |
AIS | Alarm Indication Signal |
ANSI | American National Standards Institute |
BER | Bit Error Rate |
CCITT | Consultative Committee on International Telegraphy and Telephony |
CCS | Common Channel Signaling |
CIC | Circuit Identification Code |
CPU | Central Processing Unit |
DC | Direct Current |
DSC | Digital Signaling Converter |
DSR | Data Set Ready |
DTE | Data Terminal Equipment |
DTR | Data Terminal Ready |
FTP | File Transfer Protocol |
IETF | Internet Engineering Task Force |
IP | Internet Protocol |
ITU | International Telecommunication Union |
LIU | Line Interface Unit |
M2PA | MTP 2 Peer to Peer Adaptation Layer |
M3UA | MTP3 User Adaptation Layer |
MML | |
MTP | Message Transfer Part (of SS7 signaling) |
PCM | Pulse Code Modulation |
PSU | Power Supply Unit |
RDC | Remote Data Centre |
SCTP | Stream Control Transmission Protocol |
SIGTRAN | Signaling Transport |
SS7 | Signaling System Number 7 |
SSH | Secure Shell |
STP | Signaling Transfer Point |
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