You are here: CSP Developer’s Guide: Common Channel Signaling > 15 M3UA Implementation in the Excel Platform > Terminology Used
The following terminology is used in this document.
Application Server. A logical entity serving a specific routing key. An example is a virtual switch element handling call processing for a unique range of PSTN trunks.
Application Server Process. An ASP serves as an active or backup process of an Application Server. An ASP can be configured to process signaling traffic with more than one Application Server.
SCTP association providing transport for the delivery of the protocol data units for one or more interfaces.
Home location registry
Internet Protocol
IP Server Process is an instance of an IP based application. An IPSP is essentially the same as an ASP except that it uses M3UA in a point-to-point fashion. Conceptually, an IPSP does not use the services of a Signaling Gateway.
Nodal function in an SG or ASP that handles the inputs and outputs between the M3UA layer and a local management entity.
MTP3 User Adaptation Layer
Media Gateway Controller
A unique code which identifies a network node in order for the SS7 network to route calls.
Describes a set of SS7 parameters and parameter values that uniquely define the range of signaling traffic to be handled by a particular Application Server.
The unique number assigned to each SG to AS logical connection. This number appears in the actual M3UA messages.
Stream Control Transmission Protocol
Signaling Gateway. An SG is a signaling agent that receives/sends switched circuit network signaling at the edge of the IP network. An SG appears to the SS7 network as an SS7 Signaling Point.
Signaling Gateway Process. A process instance of a Signaling Gateway that serves as an active, backup, load-sharing, or broadcast process of a Signaling Gateway.
Signaling Transport. A set of protocol standards defined by the International Engineering Task Force (IETF) to provide the architectural model of signaling transport over IP networks.
Short message service center
Signaling System #7
SCTP stream is a unidirectional logical channel established from one SCTP end point to another. All messages are delivered in sequence except for unordered delivery service.