SIP SDP Address Correlation
SIP SDP address correlation ensures that when the Oracle Communications Session Border Controller receives a request containing SDP, the L3 source address of the request is compared against the address in the c-line of the SDP. When the addresses match, the session proceeds as it normally would. If there is a mismatch, the call is rejected with the default 488 status code. You can also configure the code you want to use instead of 488.
This functionality works only with non-HNT users. The value c=0.0.0.0 is an exception and is always processed.
SIP SDP Address Correlation Configuration Address Checking
The sdp-address-check, in the enforcement-profile element can be set to enable the SDP address correlation.
To enable SDP address checking: