2.2 Programming
Gain Level Settings
The parameters below are used to adjust the gain level. However, in general, there is no need to change the default values.
Parameter & Description | Default | Value Range |
Gain Level PCM → LAN (dB) | 0 | |
Specifies the gain level (in decibels) output from the PBX, |
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through the card, to the LAN. |
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Gain Level LAN → PCM (dB) | 0 | |
Specifies the gain level (in decibels) output from the LAN, |
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through the card, to the PBX. |
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Voice Activity Detection (VAD) Settings |
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Parameter & Description | Default | Value Range |
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G.723.1/G.729A/G.711 VAD | Use | Use, |
Specifies the use of the VAD feature for each available |
| Don't use |
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CODEC (G.723.1, G.729A, and G.711). |
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The VAD conserves bandwidth by detecting silent periods |
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during a call and suppressing the packets of silence from |
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being sent to the network. |
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Notes |
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• To use the VAD feature for a certain CODEC, be |
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sure to enable it for that CODEC on both the local |
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and remote cards. |
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• To use the VAD feature between the |
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and |
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for the G.723.1 CODEC. Otherwise, the VAD feature |
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cannot be used between these cards (although calls |
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can be made and received as normal). |
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Others |
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Parameter & Description | Default | Value Range |
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G.723.1 Rate | 6.3Kbps | 5.3Kbps, |
Specifies the rate of the G.723.1 CODEC. |
| 6.3Kbps |
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DTMF Detection | Use | Use, |
Specifies the use of the DTMF detection feature. |
| Don't use |
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DTMF detection enables |
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network. |
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For details, refer to "Detailed Explanations". |
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Programming Guide | 21 |
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