What is BGCF?
Breakout Gateway Control Function. The BGCF is used to route call signalling to and from the most appropriate soft switch/S-CSCF. The S-CSCF controls PSTN services through the use of soft switches and a BGCF.
What is impi and Impu?
ISIM contains the following: IP Multimedia Private Identity (IMPI): IMPI is a global identity allocated by the home network. IP Multimedia Public Identity (IMPU): IMPU acts like a telephone number. It can either be a SIP URI (sip: @ : ) or a tel URI.
What is breakout in IMS?
The Breakout Gateway Control Function is an IMS element that chooses the network where PSTN breakout happens. If the breakout is to occur in the same network as the BGCF then the BGCF selects a MGCF (Media Gateway Control Function) which will be responsible for the interworking with the PSTN.
What is Icscf?
Interrogating Call Session Control Function (I-CSCF) is a key element in the IMS roaming methodology. It enables requests to be routed to the correct Serving Call State Control Function. As there may be several S-CSCFs either within a network, or if a roaming user requests access.
What is LTE architecture?
The high-level network architecture of LTE is comprised of following three main components: The User Equipment (UE). The Evolved UMTS Terrestrial Radio Access Network (E-UTRAN). The Evolved Packet Core (EPC).
What is the purpose of an IMS?
An Integrated Management System (IMS) combines all aspects of an organisation’s systems, processes and Standards into one smart system. This merger allows a business to streamline its management, save time and increase efficiency by addressing all elements of the management system as a whole.
What is IMS and EPC?
First of all there is the Evolved Packet Core (EPC) and then there is the IP Multimedia Sub-system (IMS), as shown in Figure 3.15. All user data goes through EPC and the data related to the operator IMS services (such Voice over LTE) goes also via IMS while traffic to the normal internet does not.
What is VoLTE and IMS?
VoLTE stands for Voice over Long-term Evolution. Utilizing the IMS (IP Multimedia Subsystem) technology, it is a specific type of VoIP service designed into the LTE standard, which enables users to make voice calls while simultaneously using data network LTE.
