Its been a long time. Do those VIKING CALL Boxes( Door Bells) connect tot he SLI or CO port?

If I remember right, the Samsung brand door bells went on one type of port and the Viking call boxes when on the other.

Please let me know if you remember.

Thanks.

One of them I know for sure goes on an analog station port. I believe they have another one that goes on a c.o. port. Another option I've tested and used is a Paxton Net2 Entry Panel it is SIP and lets you build an address book plus it has an ip camera built in it.

I have started using the Viking E-20. Analog extension off of the phone system. Works great. If you need a contact closure use the Viking C-200. I like these much better than the old Samsung Door Boxes and DPIM's.