Optimizing IFC Updates

The Oracle Communications Unified Session Manager aims to reduce the number of IFC updates traversing the network to save bandwidth and transactional overhead. Unless the unregistered UE’s IFC entry has been deleted because of exhausting cache space, the following optimizations are performed:

• If IFCs are available locally, then an SAR/SAA operation to download IFCs will not be performed.
• If a previous IFC download operation did not return any IFCs, then subsequent calls to that unregistered user will not invoke the SAR/SAA messaging to download IFCs.