Inmate Phone Calls
The inmate phone call using a metal casing, has a destructive character. Prison call, with high-definition LCD display, 16 external metal buttons, use magnetic hook, the phone hangs up automatically when the phone is hung up, use metal phone line, prevent tearing.
Main Product features1. Cold-roll steel body, vandal & tamper-resistant hardware, easy installation.
2. Waterproof rating IP55 dust proof.
3. Full keypad with memory, 10 button programmable telephone, support free dial.
4. Magnetic reed hook-switch, with LCD display.
5. Lightening protection to ITU-T recommendation K.21.
6. Heavy duty handset with hearing aid compatible receiver, noise canceling microphone.
7. Handset with industrial strong metal cord.
8. POE power supply or DC12V.
9. SUS keypad keep waterproof and dusty proof.
10. Temperature range from -40 degree to +70 degree. 11. Support echo cancellation, wall mounted type.
12.Remote software upgrade, configuration and monitoring.
13.Optional 7 minute time out to release the line if the handset is left off hook. Optional
14.Powder coated in UV stabilized polyester finish.
15.The housing covered with a layer of reflective label for easy identification at night. Optional
16.Application: Prison, bank, airport, school, metro, railway station, LRT, hotel, supermarket and pedestrian areas in cities etc.
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.
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.
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
The KNZD-05LCD VOIP
VoIP SIP2.0 telephone DTMF dialing Audio Codes:G.711, G.722, G.729
MTBF:100000hours MTTR: 2 hours Network:10/100 BaseTX Ethernet, RJ45
Free dial (maximum length of each number is 16 digits) connectors, Cat5e or better
Communication: Full duplex 2-way hands-free IP Protocols:IPv4, TCP, UDP, TFTP, RTP, RTCP,
communication DHCP, SIP
Call Control Signaling:VOIP SIP Info(DTMF), RFC LAN Protocols:Power over Ethernet(PoE,802.3af),
2833(DTMF) WLAN(IEEE 802.3af), Network Access
Power:Power over Ethernet, IEEE802.3af, Class 0 Control(IEEE 802.1x),STP(IEEE 802.1d),
Local power, 12VDC,Idle 2W, Max 10W RSTP(IEEE 802.1d-2004)
Auxiliary Contacts:1 Aux Output, dry contact Programming:Non-volatile flash memory
Contact Ratings. Load: Resistive load programming and configuration through Web GUI
Rated load:0.3 A at 125 VAC; 1 A at 30 VDC Management and Operation:DHCP and static IP,
Rated carry current:1A remote automatic software upgrade, centralized
Max.switching voltage:125 VAC,60VDC monitoring, status LED
Max.switching current:1A Echo cancellation code:G.167/G.168
The KNZD-05LCD Analogue
1.PSTN analogue telephone
2. DTMF dialing
4. MTTR: 2 hours
5. Connection: RJ11 screw terminal pair cable
6. Applicable for various types of SPC exchange PABX and dispatching exchange system with feeding voltage of 33-60V. 7. Ambient temperature:-30 ~ +60 degree. Relative humidity:10%~95%
Atmospheric pressure: 86~106Kpa Circumstance noise:less than 60dB(A)
8. Sound level of ringing:over 70dB(A). 9. Standard frequency:low frequency group:697. 770.
852. 941Hz, high frequency group:1209. 1336. 1477Hz, frequency deviation:-1.5% ~ +1.5%
10. Call transmission index:(5KM)SLR<12,RLR<-1,STMR>10, output impedance is 600 Ohm. maximum distance: 7KM
11. Super strong function is available for dialing 4 groups of numbers stored in the memory (maximum length of each number is 16 digits)
12. Connection: RJ11 screw terminal pair cable (or RJ11 Socket of plug upon request) with stainless steel cable protected
Inmate phone calls, different general public telephones, prisoner calls need to have certain confidentiality and monitoring. The prisoner's telephone dispatching system uses centralized management of sip server and regionalized management to achieve partition and monitoring integration.
This product model:KNZD-05 LCD