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DVG-7111S User's Manual
Flash Time: Set the time frame that FXO generates a FLASH signal.
Enable Polarity Reversal: This option forces VoIP TA to detect the reversal of polarity on FXO port as
the primary signal to drop a call. Some telephone switches or PBX reverse the line polarity to inform the
remote end to drop an ongoing call. Please consult with the telephone service provider for availability of
this feature.
PSTN Answer Detection: Detect PSTN answer through Ring Tone or Polarity Reversal by FXO.
Note: If Polarity Reversal is selected, remember to check the box of Enable Polarity Reversal for
FXO.
PSTN Ring OFF Length: The ring off time for making out if the call from PSTN hangs up before FXO
answer the call.
D-Link Systems, Inc.
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