Polycom SoundStructure C16 Design Manual page 586

Enable Auto-Hangup On Call Progress For PSTN Interface —
pstn_auto_hangup_call_prog_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 call progress tones feature for the PSTN
interface.
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