Sentinel VoLTE includes Sentinel’s IN Service and Sentinel’s SIP Service.
These both sit on top of OpenCloud’s Rhino SIS product.
![scc camel and sip](images/scc-camel-and-sip.png)
These services each contain features for IMS Service Centralisation. Of note are the Re-origination features. One sits in the Sentinel IN service, and the other in the Sentinel SIP service. Re-origination data is stored in the Correlation RA.
More information on these features is described in the VoLTE Administration Guide, under the Service Centralisation Features.