Initial Registration
When an endpoint registers, the Oracle Communications Session Border Controller creates and sends an AAR message to a PCRF which includes the following information:
<AA-Request>::= < Diameter Header: 265, REQ, PXY >
| AVP | AVP Contents | 
|---|---|
| Session-ID | OriginHost;0;0;<Key to Registration
				  Cache> Key is usually the endpoint’s AoR. | 
| Auth-Application-ID | Application-ID of Rx (16777236) | 
| Origin-Host | <ext-policy-server_name>.<ext-policy-realm>.<domain-name-suffix> | 
| Origin-Realm | <ext-policy-realm>.<domain-name-suffix> | 
| Destination-Realm | <IP Address of endpoint>@<destination realm of this AAR> | 
| Framed-IP-Address AVP - v4 address Framed-IPv6-Prefix AVP - v6 address | Layer 3 Endpoint-IP-address v4 - Framed-IP-Addressor v6 - Framed-IPv6-Prefix | 
| Media-Component | Grouped AVP description follows | 
Media-Component-Description AVP ::= < AVP Header: 517 >
| AVP | AVP Contents | 
|---|---|
| Media-Component-Number | 0 | 
| Media-Sub-Component | Grouped AVP description follows | 
Media-Sub-Component ::= < AVP Header: 519 >
| AVP | AVP Contents | 
|---|---|
| Flow-Number | 1 | 
| Flow-Description | Permit in <ip> from <Endpoint IP:Port> to <SBC Sip
							Interface IP:Port> Permit out <ip> from <SBC SIP Interface IP:Port> to <Endpoint IP Port> Where <ip> is (UDP: 17, TCP: 6) if wildcard-trans-protocol = disabled. | 
| Flow-Status | Set to: ENABLED (2) | 
| Flow-Usage | Set to: AF_SIGNALLING (2) | 
| AF-Signalling-Protocol | Set to: SIP (1) |