PDF of this tutorialASG
Airslide Signaling Gateway
ASP
Application Server Process
IETF
Internet Engineering Task Force
IP
internet protocol
ISDN
Integrated Service Digital Network
M2PA
MTP2 Peer-to-Peer Adaptation
M2UA
MTP2 User Adaptation
M3UA
MTP3 User Adaptation
MG
Media Gateway
MGC
Media Gateway Controller
MTU
Maximum Transfer Unit
PC
Point Code
RFC
Request For Comments
SCTP
Stream Control Transport Protocol
SG
Signaling Gateway
SIGTRAN
Signaling Transport
SS7
Signaling system number 7
STP
SS7 Signaling Transfer Point 7
SUA
SCCP User Adaptation
Definitions
Application Server (AS)
A logical entity serving a specific routing key. An example of an AS is a virtual IP database element handling all requests for an SCCP user. The AS contains a set of one or more unique ASPs, of which one or more is normally actively processing traffic.
Interworking Function
Functionality that relays messages between two protocols (e.g. MTP2/M2UA or SUA/SCCP). This interworking function could be implementation specific and does not need to be standardized.
IP Signaling Point
An SS7 node equipped with an IP network connection is called an IP signaling point. The IP signaling point function as traditional SS7 nodes using the IP network instead of SS7 links.
Signaling Gateway (SG)
A signaling agent that receives/sends switched circuit network (SCN) native signaling at the edge of the IP network. In this tutorial, an SG is an SS7 signaling point that has both an IP network connection used for SS7 over IP, and a traditional (non-IP) link to an SS7 network.
Signaling Transfer Point (STP)
A node in an SS7 network that routes signaling messages based on their destination point code in the SS7 network.
