IMS Interconnect Border Functions
The Oracle Communications Session Border Controller is deployed at IP interconnect points between service providers to deliver the functions defined in the TISPAN architecture as the I-BCF, IWF and I-BGF. The Oracle Communications Session Border Controller performs the following functions as the Interconnect border Oracle Communications Session Border Controller:
Interconnect Border Control Function (I-BCF)
- Interaction with I-BGF (including NAPT and firewall functions)
- Insertion of the IWF when appropriate
- Topology hiding—screening of signalling information
Interconnect-Border Gateway Function (I-BGF)
- Gate opening/closing
- NAPT and packet filtering
- Packet marking
- Resource allocation and bandwidth reservation
- Security and topology hiding
- Session admission control, resource and traffic management
- Upstream/downstream flow policing
- Quality monitoring and reporting
- Usage metering - CDR generation
- Lawful Intercept