Cisco IE-3000-8TC Administration Guide - Page 316

Device Settings, if Detect PSTN Long Silence is enabled.

Page 316 highlights

Connection Settings Settings Detect VoIP Long Silence PSTN Long Silence Duration VoIP Long Silence Duration PSTN Silence Threshold Min CPC Duration Detect Disconnect Tone Device Settings Fax Mode FXS Port Input Gain FXS Port Output Gain DTMF Playback Level DTMF Playback Length FXS Port Impedance Description If enabled, the SPA8800 disconnects both call legs when the VoIP side (non-PSTN) has no voice activity for a duration longer than the length specified in the VoIP Long Silence Duration parameter during a call across the connection. This field defines the minimum length of PSTN silence (or inactivity) in seconds to trigger a disconnect of a call across the SPA8800 device if Detect PSTN Long Silence is enabled. This field defines the minimum length of VoIP silence (or inactivity) in seconds to trigger a disconnect of a call across the SPA8800 device if Detect VoIP Long Silence is enabled. This parameter adjusts the sensitivity of PSTN silence detection. Choose from {very low, low, medium, high, very high}. The higher the setting, the easier it is to detect silence and trigger a disconnection. This field defines the minimum duration, in seconds, of a low tip-and-ring voltage for the SPA8800 device to recognize the drop in voltage as a CPC signal or PSTN line removal. If enabled, the SPA8800 device disconnects both call legs when it detects the disconnect tone from the PSTN side during a call across the device. The disconnect tone varies by country and can be affected by the country of deployment chosen during First Time Setup (FTS). Choose between G.711 Passthrough or T.38 Fax This field defines the input gain for the FXS port in dB, up to three decimal places. The range is 6.000 to -12.000. This field defines the FXS output gain in dB, up to three decimal places. The range is 6.000 to -12.000. The Call Progress Tones and DTMF playback level are not affected by the FXS Port Output Gain parameter. This field defines the local DTMF playback level in dBm, up to one decimal place. This field defines the local DTMF playback duration in milliseconds. This field sets the electrical impedance of the FXS port. Choices are: 600, 900, 600+2.16uF, 900+2.16uF, 270+750||150nF, 220+850||120nF, 220+820||115nF, or 200+600||100nF. Administration Guide for Cisco Business Edition 3000, Release 8.6(4) 296 OL-27022-01

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Description
Settings
If enabled, the SPA8800 disconnects both call legs when the VoIP
side (non-PSTN) has no voice activity for a duration longer than the
length specified in the VoIP Long Silence Duration parameter during
a call across the connection.
Detect VoIP Long Silence
This field defines the minimum length of PSTN silence (or inactivity)
in seconds to trigger a disconnect of a call across the SPA8800 device
if Detect PSTN Long Silence is enabled.
PSTN Long Silence Duration
This field defines the minimum length of VoIP silence (or inactivity)
in seconds to trigger a disconnect of a call across the SPA8800 device
if Detect VoIP Long Silence is enabled.
VoIP Long Silence Duration
This parameter adjusts the sensitivity of PSTN silence detection.
Choose from {very low, low, medium, high, very high}. The higher
the setting, the easier it is to detect silence and trigger a
disconnection.
PSTN Silence Threshold
This field defines the minimum duration, in seconds, of a low
tip-and-ring voltage for the SPA8800 device to recognize the drop
in voltage as a CPC signal or PSTN line removal.
Min CPC Duration
If enabled, the SPA8800 device disconnects both call legs when it
detects the disconnect tone from the PSTN side during a call across
the device. The disconnect tone varies by country and can be affected
by the country of deployment chosen during First Time Setup (FTS).
Detect Disconnect Tone
Device Settings
Choose between G.711 Passthrough or T.38 Fax
Fax Mode
This field defines the input gain for the FXS port in dB, up to three
decimal places. The range is 6.000 to -12.000.
FXS Port Input Gain
This field defines the FXS output gain in dB, up to three decimal
places. The range is 6.000 to -12.000. The Call Progress Tones and
DTMF playback level are not affected by the FXS Port Output Gain
parameter.
FXS Port Output Gain
This field defines the local DTMF playback level in dBm, up to one
decimal place.
DTMF Playback Level
This field defines the local DTMF playback duration in milliseconds.
DTMF Playback Length
This field sets the electrical impedance of the FXS port. Choices are:
600, 900, 600+2.16uF, 900+2.16uF, 270+750||150nF,
220+850||120nF, 220+820||115nF, or 200+600||100nF.
FXS Port Impedance
Administration Guide for Cisco Business Edition 3000, Release 8.6(4)
296
OL-27022-01
Connection Settings