Vandal resistant SIP call station

Vandal resistant SIP call station
1.Two-way audio with Echo Cancel feature;
2.Complies with SIP standard for easy integration in every SIP PBX
3.Body material: 316 grade stainless steel
4.Button: 1 panic button; 1 reset button (on board)
5.2 input relays for alarm; 2 output relays for door opener
6.Water-proof & Dust-proof: IP65
7.Installation: Flush mount
8.PoE (IEEE802.3af, Power-over-Ethernet);