Installation & Maintenance Manual 17. Configuring Voice Coders (with Silence Suppression)
Version 6.8 165 Microsoft Lync Server
17 Configuring Voice Coders (with Silence
Suppression)
The PSTN Gateway communicates with the Mediation Server using either the G.711 A-law
or G.711 µ-law (Mu-Law) voice coder. In addition, silence suppression can be enabled per
coder, which is recommended for improving the performance of the Mediation Server. The
procedure below shows how you can change the default coder.
To configure the voice coder and silence suppression:
1. Open the Coders page (Configuration tab > VoIP menu > Coders And Profiles >
Coders).
Figure 17-1: Coders Table Page
2. From the 'Coder Name' drop-down list, select the required coder.
3. From the 'Silence Suppression' drop-down list, select Enable.
4. Click Submit.
5. On the toolbar, click Burn to save the changes to the PSTN gateway flash memory.
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