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Joined: Mar 2003
Posts: 679
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Member
Joined: Mar 2003
Posts: 679 |
I may be wrong but I believe the Viking Unit uses
an optoisolator circuit and a non-polarizing capacitor across the lines.
NEC strongly recomends that there be no half-taps of any kind in front of the equipment.
When you changed to the B style CO card that card has circuitry that basically listens for the ring voltage and then listens for the FSK tones for the caller-id.
The combined capacitance and lower resitance of the two may be causing a premature ring trip.
Unfortunatly you may have to add an ECR card to the NEC to get ringing over paging.
DJ
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