To configure codecs via the web user interface:
1. Click on Account->Codec.
2. Select the desired codec from the Disable Codecs or the Enable Codecs column.
3. Click or to disable or enable the selected codec.
4. Select the desired codec from the Enable Codecs column, and click or to
adjust the priority of the selected codecs.
5. Click Confirm to accept the change.
The system supports SIP and H.323 protocols for incoming and outgoing calls. The
default call type on the system is Auto, the system preferentially uses the H.323 protocol
to place calls. If there is no available H.323 account on the system, the system will switch
to the SIP protocol for placing calls. You can specify the desired protocol for the system