Administration
A31003-S2010-M100-18-76A9
3-82 OpenStage HFA Family, Administration Manual
administration.fm
Speech
3.10.2 Codec Preferences
If Silence suppression is activated, the transmission of data packets is suppressed on no con-
versation.
The OpenStage phone provides the codecs G.711, G.722, and G.729. When an HFA connec-
tion is established between two endpoints, the phones negotiate the codec to be used. The re-
sult of the negotiation is based on the general availability and ranking assigned to each codec.
The administrator can allow or disallow a codec as well as assign a ranking number to it.
The Packet size, i. e. length in milliseconds, of the RTP packets for speech data, can be set to
10ms or 20ms or to automatic detection.
Data required
• Silence suppression: Suppression of data transmission on no conversation.
Value range: "Yes", "No".
Default: "No".
• Packet size: Size of RTP packets in milliseconds.
Value range: "10ms", "20ms", "Automatic".
Default: "Automatic".
• G.711: Parameters for the G. 711 codec.
Value Range: "Choice 1", "Choice 2", "Choice 3", "Disable", "Enabled".
Default: "Choice 1".
• G.722: Parameters for the G. 722 codec.
Value Range: "Choice 1", "Choice 2", "Choice 3", "Disable", "Enabled".
Default: "Choice 2".
• G.729: Parameters for the G. 729 codec.
Value Range: "Choice 1", "Choice 2", "Choice 3", "Disable", "Enabled".
Default: "Choice 3".
Administration via WBM
Speech > Codec preferences
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