Linksys SPA922 Cisco SPA9000 Voice System Administration Guide - Page 269
Caller Id & CP Tone, 512ms, 640ms, 5-16.5vrms, Enable, North American
UPC - 745883570836
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SPA400 Field Reference Setup C Ring Indication Delay The delay in reporting the ring after it presents on the PSTN line Default: 512ms Ring Timeout The delay on reporting that the ring stopped after it no longer presents on the PSTN line Default: 640ms Ring Threshold The minimum voltage(rms value) of a valid ring Default: 13.5-16.5vrms Ringer Impedance Default: High DC current Limiting Default: Enable Caller Id & CP Tone Method The regional settings for Caller ID and call progress tones Default: North American Battery reversal as discconnect signal Can be chosen as a method for signalling the end of a call Default: unselected Loop period shut-down Can be chosen as a method for signalling the end of a call as disconnect signal Default: selected Minimum period for disconnect signal The minimum duration that the loop current is cut off to signal the end of the call; used with the loop period shut-down method Default: 750 Tear down FXO port when silence detected for The duration of silence that causes the FXO port to disconnect the call Default: 300 SPA9000 Voice System Administration Guide 267