Application Examples:

1.It is applicable for speedway system to dial-up help call for emergency;
2.It is applicable for railway or metro system to dialup the section telephone;
3.It is applicable for customers to dialup complaining or service telephone of ATM machines or other service stations;

VOIP OVER IP-SIP(Version)

Connection type:Rj45 Socket inside sealed enclosure

Power supply:External 5V dc

Call set-up Protocol:Session Initiation Protocol(SIP)

Configuration:DHCP or STATIC IP address provisioning

1.Well treated PCB used inside the phone.

2.Robust screw terminals used for the connection of ringer,handset,line in,hookswitch.

3.Selectable 7 minute time out,to release the line if the handset is left off hook.

4.All connectors be greased in production.

Handset

1.Kirk electro dynamic transducer for both handset transmitter and receiver.

2.Spring cable or armoured cable to attach the handset to the telephone main unit.

3.Stainless steel cable to connect exchange.

4.Inductive coupler fitted for hearing aid compatibility.

5.Handset integrity wiring to enable exchange to check if the phone is still operational.