Polycom SoundStructure C16 Design Manual page 585

Telephony Input Tone
Argument Argument value
Channel Type Virtual Channel
Value Type Floating-Point
Read/Write Mode Read/Write
Phys Chans Analog Telephony Input, VoIP Telephony Input
Virt Chans Mono, Stereo
System Limits Minimum: -20.0, Maximum: 20.0, Resolution: 0.1
Default 0.0
User Limits No
Supported
Event Source No
Description
This parameter sets the gain (in dB) applied to tones generated to the local room. In particular, this gain
applies to the ring tone, entry tone, and exit tone. To adjust the level of the DTMF digits played back to the
local room, use the phone_dtmf_gain parameter.
Enable Auto-Hangup On Loop Drop For PSTN Interface —
pstn_auto_hangup_loop_en
Argument Argument value
Channel Type Virtual Channel
Value Type Boolean
Read/Write Mode Read/Write
Phys Chans Analog Telephony Output
Virt Chans Mono
Default 0
Event Source No
Description
This parameter enables (1) or disables (0) the auto-hangup on loop drop feature for the PSTN interface.
Polycom, Inc.
Gain—phone_tone_gain
585