
54 Chapter 4 VoIP Trunk Configuration
P0937663 02.0
Configuring codecs
This section explains how to select the codecs that are used for VoIP trunks. For an explanation of
codecs, see “Codecs” on page 23.
To configure the codecs:
1 In Unified Manager, open Services, IP Telephony, and click on H.323 trunks.
2 Click on the Media Parameters tab. The Media Parameters dialog appears.
Figure 18 Media parameters
3 Click the First Preferred Codec menu. Select the codec you want to use as the first preferred
codec. This is the most preferred codec to be used on VoIP trunks.
4 For each preferred codec, use the process described in step 3.
Setting Silence Compression
This section explains how to set silence compression on VoIP trunks.
The silence compression feature identifies periods of silence in a conversation, and stops sending
IP speech packets during those periods. In a typical phone conversation, most of the conversation
is half-duplex, meaning that one person is speaking while the other is listening. If silence
compression is enabled, no voice packets are sent from the listener’s end. This greatly reduces
bandwidth use.
Comentários a estes Manuais