Has anyone set up a talkback paging horn on an NEC SV9100? From the documentation, I see that the PGD(2)-U10 ADP can be used for talkback with external page. What horn did you use? Did you need any additional hardware?

Viking makes talk back paging equipment.

Use a analog trunk port.

Thanks for the advice. I was hoping to use a paging port as I have no spare CO ports.