Configuring and Managing Analog Line Card Ports 219
Audio Level Controls
Audio Input Gain (dB) Set this value to control the volume of the audio signal
from the telephone company’s central office (CO).
Default: Depends on the country in which the NBX
system is operating.
When you load a regional pack (Operations >
Regional Software) and select the tones and cadences
appropriate for your location (System Configuration >
System Settings > Regional Settings > Advanced), the
default value is set on your NBX system.
Minimum: - 10 dB
Maximum: + 10 dB
Mute is a choice provided for testing purposes.
Audio Output Gain (dB) Set this value to control the volume of the audio signal
sent to the telephone company’s central office (CO).
Default: Depends on the country in which the NBX
system is operating.
When you load a regional pack (Operations >
Regional Software) and select the tones and cadences
appropriate for your location (System Configuration >
System Settings > Regional Settings > Advanced), the
default value is set on your NBX system.
Minimum: - 10 dB
Maximum: + 10 dB
Mute is a choice provided for testing purposes.
DTMF Output Level (dBm) Set this value to control the volume of the tones sent to
the telephone company’s central office (CO).
Default: Depends on the country in which the NBX
system is operating.
When you load a regional pack (Operations >
Regional Software) and select the tones and cadences
appropriate for your location (System Configuration >
System Settings > Regional Settings > Advanced), the
default value is set on your NBX system.
Minimum: - 14 dBm
Maximum: 0 dBm
Increment: 2 dBm per step
Table 35 Analog Line Card Ports - Advanced Settings Parameters (continued)
Field Purpose
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