Polycom SoundStructure C16 Design Manual page 575

Command
set pstn_in_gain "Phone
In" 6
Description
This parameter controls whether or not the flash hook delay is determined by
the default pstn_country settings (0) or by the phone_flash_delay setting (1).
pstn_in_gain
Argument
Channel Type
Value Type
Read/Write Mode
Phys Chans
Virt Chans
System Limits
Default
User Limits
Supported
Event Source
Description
This parameter sets the gain (in dB) of the signal coming from the PSTN
interface.
Examples
Response
val pstn_in_gain "Phone
In" 6
pstn_line_voltage
Argument
Channel Type
Value Type
Read/Write Mode
Phys Chans
Argument value
Virtual Channel
Floating-Point
Read/Write
Analog Telephony Input
Mono
Minimum: -20.0, Maximum: 20.0, Resolution: 0.5
0.0
No
No
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.
Argument value
Virtual Channel
Integer
Read-Only
Analog Telephony Output
Command Protocol Reference Guide
PSTN Input Gain
PSTN Line Voltage
A - 59