Matrix PRASAR UCS System Manual 909
Gain Settings
What's this?
To avoid noise or echo during speech, you must set the speech volume levels on the SIP Trunks/Extensions.
PRASAR UCS allows you to set the speech volume levels for the SIP Trunks/Extensions.
The speech volume levels can be adjusted by increasing or decreasing the Gain Settings provided on the Trunk
ports.
How it works
A call received on the SIP Trunk 1 can be placed on SIP Trunk 2. The speech volume levels may differ accordingly.
Hence, on the SIP Trunk 1 you must set the speech volume levels for different SIP Trunks.
In this case, let us assume that the call on the SIP Trunk 1 is to be placed on the SIP Trunk 2.
Before placing the call on the SIP Trunk, the system applies the SIP to SIP Gain Setting (Receive and Transmit
Gain settings) configured on the SIP Trunk to adjust the speech volume level.
When the call is placed on the SIP Extension, the SIP to SIP Gain Settings (Receive and Transmit Gain settings)
on the SIP Trunk are applied to adjust the speech volume level.
Hence, you can set different speech volume levels for each SIP Trunk and the system automatically detects and
applies these gain settings for each SIP Trunk.
How to configure
• Login as System Engineer.
• Under Configuration, click VoIP Configuration.
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