DVG-N5412SP User’s Manual                                     ADVANCED 
D-Link Systems, Inc.                65 
ADVANCED  → VoIP → Line 
 
 
Enable: Tick the check box to enable a line. If some lines are not used, disable them (Pause Function) to 
avoid unnecessary waiting when an incoming call is diverting to the line. 
Flash Time: Enter the time for PSTN to detect if the voltage keeps the on-hook status.   
PSTN Ring OFF Length: Enter the ring length detected if the remote party is on-hook from PSTN by PSTN 
port. If the ring length form PSTN is longer than this setting, the PSTN will be on-hook, and it will stop the 
ringing from FXS. 
CO Line Type: Select PSTN (48V) or PABX (24V) for the CO line type connected to PSTN port. 
 
 
ADVANCED  → VoIP → Line