Viking’s Emergency Phone Panic Buttons are designed to mount discretely under a desk or countertop to provide a quick and reliable way to make a silent emergency call. The called party can silently monitor the situation or engage in two-way handsfree communication by entering a touch tone “#”. The Panic Buttons dial up to 5 emergency numbers and all programming parameters are stored in non-volatile memory. Model PB-3 is telephone line powered and connects to any standard analog telephone line, analog phone system station, or FXS port. Model PB-3-IP functions as a SIP end point connecting from your POE switch and can be programmed from any PC on the same LAN or remotely using a static IP address.