Cisco Small Business SPA2102 Administration Manual page 186

ATA Voice Field Reference
Line page
Cisco Small Business ATA Administration Guide
Detect Polarity
Reversal
Detect PSTN Long
Silence
Detect VoIP Long
Silence
PSTN Long Silence
Duration
VoIP Long Silence
Duration
PSTN Silence
Threshold
Min CPC Duration
Detect Disconnect
Tone
If enabled, SPA will disconnect both call legs when this
signal is detected during a gateway call. If it is a PSTN
gateway call, the 1st polarity reversal is ignored and the
2 nd one triggers the disconnection. For VoIP gateway call,
the 1 st polarity reversal triggers the disconnection.
The default is yes.
If enabled, SPA will disconnect both call legs when the
PSTN side has no voice activity for a duration longer than
the length specified in the PSTN Long Silence Duration
parameter during a gateway call.
The default is yes.
If enabled, SPA will disconnect both call legs when the
VoIP side has no voice activity for a duration longer than
the length specified in the VoIP Long Silence Duration
parameter during a gateway call.
The default is no.
This value is minimum length of PSTN silence (or inactivity)
in seconds to trigger a gateway call disconnection if
Detect PSTN Long Silence is yes.
The default is 30.
This value is minimum length of VoIP silence (or inactivity)
in seconds to trigger a gateway call disconnection if
Detect VoIP Long Silence is yes.
The default is 30.
This parameter adjusts the sensitivity of PSTN silence
detection. Choose from {very low, low, medium, high, very
high}. The higher the setting, the easier to detect silence
and hence easier to trigger a disconnection.
The default is medium.
Specify the minimum duration of a low tip-and-ring voltage
(below 1V) for the Gateway to recognize it as a CPC signal
or PSTN line removal. The default is 0.2.
If enabled, SPA will disconnect both call legs when it
detects the disconnect tone from the PSTN side during a
gateway call. Disconnect tone is specified in the
Disconnect Tone parameter, which depends on the region
of the PSTN service.
The default is yes.
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