SIP Registrar

To enable IFC support in a SIP Registrar:

In Superuser mode, type configure terminal and press Enter.
```
ORACLE# configure terminal
```
Type session-router and press Enter to access the session router path.
```
ORACLE(configure)# session-router
```
Type sip-registrar and press Enter. The system prompt changes to let you know that you can begin configuring individual parameters.
```
ORACLE(session-router)# sip-registrar
ORACLE(sip-registrar)#
```
Type select and choose the number of the pre-configured SIP registrar configuration element you want to configure.
```
ORACLE(sip-registrar)# select
name:
1: registrar1
selection:1
ORACLE(sip-registrar)#
```
ifc-profile—Set this parameter to the name of the IFC profile you just created.
serving-function—Set this parameter to disabled when you want the Oracle Communications Unified Session Manager to act solely as an I-CSCF. When disabled, the Oracle Communications Unified Session Manager always forwards requests from unregistered users to the serving group. The default is enabled, which retains the S-CSCF function on this Oracle Communications Unified Session Manager.
serving-group—Set this parameter to a Session Agent Group (SAG) name. The Oracle Communications Unified Session Manager forwards requests from unregistered users to this group when the serving function parameter is disabled.  Use of this parameter requires the prior configuration of a SAG that includes all prospective S-CSCFs. The name you give to that group is the name you specify as an argument to this parameter.
Type done when finished.