Administration

Speech

3.12.2Codec Preferences

If Silence suppression is activated, the transmission of data packets is suppressed on no con- versation, that is, if the user doesn’t speak.

The OpenStage phone provides the codecs G.711, G.722, and G.729. When a SIP connection is established between two endpoints, the phones negotiate the codec to be used. The result 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: "On", "Off".

Default: "Off".

Packet size: Size of RTP packets in milliseconds.

Value range: "10 ms", "20ms", "Automatic".

Default: "Automatic".

G.711: Parameters for the G. 711 codec.

Value Range: "Choice 1", "Choice 2", "Choice 3", "Disabled", "Enabled".

Default: "Choice 1".

G.729: Parameters for the G. 729 codec.

Value Range: "Choice 1", "Choice 2", "Choice 3", "Disabled", "Enabled".

Default: "Choice 2".

G.722: Parameters for the G. 722 codec.

Value Range: "Choice 1", "Choice 2", "Choice 3", "Disabled", "Enabled".

Default: "Disabled".

Administration via WBM

Speech > Codec preferences

A31003-O1010-M100-10-76A9, 13/06/2008

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HiPath 8000 - OpenStage Family, Administration Manual

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Siemens 8000 manual Codec Preferences, 107