Log in to the EMS web interface with administrator credentials.
From the Device menu, click the SBC name to administer.
In the navigation pane, click Domain Policies > Media Rules.
The application pane displays the existing Media Rule sets, and the content pane displays the parameters of the selected Media Rule set.
Click Codec Prioritization tab and click Edit.
Select the Codec Prioritization, Transcode When Needed, and Transrating check boxes.
The system displays [Transcodable] next to the codecs that can be transcoded.
In the Video Codecs section, the Transcode When Needed field is unavailable. Video codecs cannot be transcoded.
You can select Transrating and Transcode When Needed fields independently.
Optional To remove all codecs that are not included in the Preferred Codecs list , select the Allow Preferred Codecs Only check box.
In the Available column, select the transcodable codecs, and click the right arrow button (>) to move them to the Selected column in the order of preference.
In the Ptime column, select a packetization time.
You can select a packetization time only if you have selected the Transrating field.
Click Next.
Optional If required, enable BFCP, FECC, and ANAT.
