IMS: P-CSCF Endpoint Identification Using Address and Port

You can configure the Oracle Communications Session Border Controller, acting as a P-CSCF, to match a Request it receives to a registration cache entry based only on the IP address and port from which the Request came. When you enable this behavior, the Oracle Communications Session Border Controller will perform this kind of endpoint identification even when there nothing in the message matches the cache entry.

IMS P-CSCF Endpoint Identification Configuration

For this behavior to work as designed, you must also have the reg-via-key option enabled for the SIP interface to which you are adding the reg-via-match option.

To configure P-CSCF endpoint identification using address and port:

1. In Superuser mode, type configure terminal and press Enter.

   ORACLE# configure terminal
   ORACLE(configure)#

2. Type session-router and press Enter.

   ORACLE(configure)# session-router
   ORACLE(session-router)#

3. Type sip-interface and press Enter. If you are editing an existing configuration, select the one on which you want to enable this feature.

   ORACLE(session-router)# sip-interface
   ORACLE(sip-interface)#

4. options—Set the options parameter by typing options, a Space, the option name reg-via-match with a plus sign in front of it, and then press Enter.

   ORACLE(sip-interface)# options +reg-via-match

   If you type options and then the option value for either of these entries without the plus sign, you will overwrite any previously configured options. In order to append the new option to this configuration’s options list, you must prepend the new option with a plus sign as shown in the previous example.

5. Save and activate your configuration.