SIP Duplicate SDP Suppression Configuration

To enable duplicate SDP suppression for SIP sessions:

In Superuser mode, type configure terminal and press Enter.
```
ORACLE# configure terminal
```

Type session-router and press Enter.

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

Type sip-config and press Enter.
```
ORACLE(session-router)# sip-config
ORACLE(sip-config)#
```
If you are adding support for this feature to a pre-existing configuration, then you must select (using the ACLI select command) the configuration that you want to edit.
options—Set the options parameter by typing options, a Space, and then the option name strip-dup-sdp. Then press Enter.
```
ORACLE(sip-config)# options +strip-dup-sdp
```
If you type the option without the plus sign, you will overwrite any previously configured options. In order to append the new options to this configuration’s options list, you must prepend the new option with a plus sign as shown in the previous example.