Audio Levels for the Site Gateway (Conventional Channel Interface) for Analog or Mixed Mode
MCC 7500 VPM Audio Level Settings Analog Unity Gain and MCC 7500 VPM Audio Level Settings Mixed Mode Unity Gain show the Site Gateway (Conventional Channel Interface) conventional channel audio level parameters for analog or mixed mode. Audio level parameters must be configured separately for each analog or mixed mode channel in the Site Gateway (Conventional Channel Interface). These parameters are configured through Provisioning Manager User Guide or, in K core systems, the Configuration Manager.
| Parameter | Value | |
|---|---|---|
|
|
|
| Outbound Path (from console, to station) | ||
| Outbound Alignment Tone Level | -10 dBm | -5 dBm |
| Average Outbound G.728* Audio Level | -26 dBm0 | -26 dBm0 |
| Inbound Path (from station, to console) | ||
| Average Inbound G.728 Audio Level | -26 dBm0 | 26 dBm0 |
| Inbound AGC Knee Setting | -25 dBm | -20 dBm minus line loss in dB** |
| Inbound AGC Type | AGC Off | AGC On |
* G.728 is an International Telecommunications Union (ITU) standard for coding telephone-bandwidth speech that was designed to provide speech quality equivalent to or better than that of previous standards. G.728 coding is suited for a wide range of applications, including both voice storage and voice communications, and performs well in the presence of multiple speakers and background noise.
** Example – For a line loss of 16 dB, the Inbound AGC Knee Setting would be -36 dBm.
The default values of these parameters correspond to the unity-gain column in the table. If lossy media are used to connect the station to the Site Gateway (Conventional Channel Interface), then adjust the "outbound alignment tone level" as shown in the table's lossy media column.