Emergency Telephone Product Description ●All-metal shell is riot-proof and waterproof, can be fixed on the tunnel wall, bracket or flat surface; ●One-touch access to the help center for emergency calls; ●Single-touch call for full-duplex intercom; ●Built-in 5W speaker and microphone for calls and broadcast reception; ●Optional built-in 60W-150W digital amplifier, can be connected to passive sound column or passive horn speaker; ●Standard SIP protocol, adaptive 100M network port; ●Embedded ARM chip, stable and reliable; ●Terminal information can be configured through WEB login
Technical parameters: ●Network communication protocols TCP/IP, UDP, ARP, ICMP, IGMP, SIP, HTTP, FTP, ONVIF, G.711A/U, G.722, G729AB ●Audio sampling, bit rate 22.05KHz 16bit ●Working temperature -40~70℃ ●Power supply AC220V/50Hz or DC12V//1.5A ●Waterproof grade IP65 ●Product size 242*140*320mm
