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Terms that are on use on this site.There are 30 entries in this glossary.
|Access Gateway Control Function (AGCF)||
The Access Gateway Control Function (AGCF) and Access Media Gateway Function (A-MGF) are crucial components in IMS, enabling IMS infrastructures to connect to and control legacy TDM access networks. PSTN/ISDN users accesses an AGCF first in order to access the IMS.
|Address Resolution Protocol (ARP)||
Address Resolution Protocol (ARP) is a protocol for mapping an Internet Protocol address to a physical machine address that is recognized in the local network. A table, usually called the ARP cache, is used to maintain a correlation between each MAC address and its corresponding IP address. ARP provides the protocol rules for making this correlation and providing address conversion in both directions.
|Application Servers (AS)||
Application servers (AS) interface with the S-CSCF using Session Initiation Protocol (SIP) to provide IMS users with Services. An example of an application server is the that is being developed in 3GPP is the Voice call continuity Function (VCC Server). An AS can be located in the home network or in an external third-party network.
|Authentication and Key Agreement (AKA)||
AKA is a security protocol widely used in 3G networks. AKA is also used for one-time password generation in the HTTP protocol. In IMS the protocol is used for User Device authentication.
One network or series of networks that are all under one administrative control. An autonomous system is also sometimes referred to as a routing domain. An autonomous system is assigned a globally unique number, sometimes called an Autonomous System Number (ASN).
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