Polycom SoundStructure C16 Design Manual page 568

Design Guide for the Polycom SoundStructure C16, C12, C8, and SR12
Command
A - 52
answering it, then immediately hanging up. The audio paths remain muted so
that the conference is not interrupted and so that no local conference audio is
sent to the incoming caller.
phone_ring
Argument
Channel Type
Value Type
Read/Write Mode
Phys Chans
Virt Chans
Event Source
Description
This parameter indicates the ringing state for the telephony interface. While
the telephony interface is ringing, reading this parameter will return 1. When
the telephony interface is not ringing, reading this parameter will return 0.
Acknowledgements for this parameter will be automatically sent whenever
this parameter changes state due to a hook flash, auto-answer, or
auto-hangup.
Examples
Response
val phone_ring
"Phone In" 1
phone_ring_tone
Argument
Channel Type
Value Type
Read/Write Mode
Phys Chans
Virt Chans
Ring Indicator For Telephony Interface
Argument value
Virtual Channel
Boolean
Read-Only
Analog Telephony Input, VoIP Telephony Input
Mono
Yes
Description
Returns the value 1 when the incoming phone line
associated with the virtual channel "Phone In" is ringing.
Note that the phone in virtual channel name must be
used, not the phone out virtual channel name.
Select Ring Tone For Telephony Interface
Argument value
Virtual Channel
Sequence
Read/Write
Analog Telephony Input, VoIP Telephony Input
Mono