Polycom SoundStructure C16 Design Manual page 590

PSTN Input Gain—pstn_in_gain
Argument Argument value
Channel Type Virtual Channel
Value Type Floating-Point
Read/Write Mode Read/Write
Phys Chans Analog Telephony Input
Virt Chans Mono
System Limits Minimum: -20.0, Maximum: 20.0, Resolution: 0.5
Default 0.0
User Limits No
Supported
Event Source No
Description
This parameter sets the gain (in dB) of the signal coming from the PSTN interface.
Examples
Command
set pstn_in_gain "Phone
In" 6
Polycom, Inc.
Response
val pstn_in_gain "Phone
In" 6
Description
Adjusts the input gain on the phone input to 6dB. Note
that the phone in virtual channel name must be used, not
the phone out virtual channel name.
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