Prison Telephone Suppliers and Manufacturers

Product Name: automatic dial telephone Product Type: JWAT137 Communication system: Switchboard Defend Grade: IP65 Dimensions:287.5 135 75 Material: Stainless steel 304 Color: stainless steel qualities Electronic sample: APPLICATION Suitable for inside prisons, labor camps, drug rehabilitation and other intercom, communication and other places which need monitoring. FEATURES 1. The phone can form an independent telephone communication system with program-controlled switches and couplers. 2. The phone can be connected directly to the telecommunications network. 3. After the composition of the call system, each phone is an independent station. The malfunction of any phone doesnt affect the whole system work. 4. After the composition of the call system, the product has an automatic gain function, and the voice does not vary with distance or telephone quantity. 5.Telephone circuits within the integrated circuit using internationally accepted double-sided, with hair the exact number, call clarity, job stability, etc. 6. Stainless steel housing, high mechanical strength, strong impact. 7. Key parts of the handset and the hooks are both produced by our own company; Quality control strictly; After-sale reaction fast.

Product Name: Jail telephone Product Type: JWAT133 Communication System: Switchboard Defend Grade: IP65 Dimensions: 287.5 Ã? 135Ã? 75 Material: Stainless steel 304 Color: stainless steel qualities Electronic sample: APPLICATION Suitable for inside prisons, labor camps, drug rehabilitation and other intercom, communication and other places which need monitoring. FEATURES 1. The phone can form an independent telephone communication system with program-controlled switches and couplers. 2. The phone can be connected directly to the telecommunications network. 3. After the composition of the call system, each phone is an independent station. The malfunction of any phone doesnt affect the whole system work. 4. After the composition of the call system, the product has an automatic gain function, and the voice does not vary with distance or telephone quantity. 5.Telephone circuits within the integrated circuit using internationally accepted double-sided, with hair the exact number, call clarity, job stability, etc. 6. Stainless steel housing, high mechanical strength, strong impact. 7. Key parts of the handset and the hooks are both produced by our own company; Quality control strictly; After-sale reaction fast. 8.Volume can be adjusted. 9.Theres an area to place an instruction card in front of the telephone.

I am Ellen from Joiwo Explosion Proof Science and Technology. We manufacture industrial explosion proof telephone, weatherproof telephone and other public phones. We have been in this field for more than 15 years and OEM is available.

Main Components 1. Shell made of Special PC/ABS. 2.304# stainless steel armoured cord or PVC coiled cord. 3. High strength steel rope. 4. Pierce-proof and hi-fi transmitter and receiver. 5. Connect the permanent seat of the case. Featuresï¼? 1. Shell is made of Special PC/ ABS 2. 304# stainless steel armoured cord or PVC coiled Cord 3. Pierce-proof and Hi-Fi transmitter and receiver Users select 1. The length of the tube is flexible,standard is 900mm, the diameter of the tube 8.4mm,7.8mm,6.5mm. 2. Connector can be chosen: Y-spade,RJ11,XH-pg,USB,Audio Jack, Aviation Joint, XLR Connector,ect. 3. High strength steel rope diameter can be chosen:standard is 1.6mm, other diameter is 2.0mm,2.5mm. 4. Handset Color: standard is black or red, other color can be customized. 5. Microphone: Electret microphone or Dynamic microphone.

Description: Defend grade: GB 4208-93 IP 66 / IP 67 Call capability of phone: GB/T 15279-94 Application scope: metro, light railroad, speedway, ship, mine, etc. External configuration specification: External dimension: 320*205*120mm Weight: 5.5Kg Installment dimension:139*260mm M8 bolt is used to install. 320*205*120mm.

Industrial telephone: solar phone, waterproof telephone, weather resistance telephone, loud speaker weatherproof telephone, bank telephone, tunnel emergency telephone, elevator telephone, prison telephone, phone accessories.

Antique telephone 1.Fsk/dtmf, 30 caller id memories, call back and auto redial. 2.Last 5 outgoing number and time memories. 3.Thunder proof. 4.Local code setting. 5.Peaker phone. 6.Clock show. 7.Material:wood. Inner box size:27.8cmx23.5cmx35.6cm Outer box size:72cmx56.5cmx36.6cm

Antique telephone 1.Fsk/dtmf, 30 caller id memories, call back and auto redial. 2.Last 5 outgoing number and time memories. 3.Thunder proof. 4.Local code setting. 5.Peaker phone. 6.Clock show. Inner box: 26.7cmx20.9cmx31.1cm Outer box: 72cmx56.5cmx36.6cm

1.FSK/DTMF compatible ,detected automatically. 2.Incoming/outgoing number memory 3.Auto redial/redial/recall 4.Flash time adjustable 5.Calendar 6.Anti-thunder design 7.Anti-steal dial protection others.

1.Outgoing/incoming number memory 2.Auto redial/redial/recall 3.IP number memory 4.Caller ID function 5.Caleandar time display.

1.FSK/DTMF dual system /caller ID function 2.In On-hook stage pre-dial / edit dialing number . 3.50 incoming / 16 outgoing calls memories in 8 digital number. 4.Tone/Pulse Dialing mode selectable. 5.Ringer / speaker volume H/L adjustable 6.Automatically redial / redial / Ring back function. 7.Calendar / time display. 8.16 ringer selectable. 9.No disturb function. 10.Anti thunder protection 11.Steal dialing protection.

Telephone

Caller id telephones Fsk/dtmf/etsi system compatible, 16 chord melodies, 60 incoming calls, 49 outgoing calls and 60 vip numbers, ogm funciton, etc... Not available

Model KTH15 Max input DC voltage DC66V Max input circuit Current 60mA Max input bell stream voltage 105v Max input bell stream circuit current 120mA Weight (kg) 3.8kg Communication Distance â?¤10km,model: MHYV1*2*7/0.37 Bell ringing level â?¥95dB Material ABS Protection Level IP65 Installation Wall Mounting/Table Linker coupler KTA12 coupler T/P Way Tone and Pulse Function Explosion proof /waterproof/ anti noise -

Caller ID telephone 20pcs/CTN

APPLICATION Suitable for inside prisons, labor camps, drug rehabilitation and other intercom, communication and other places which need monitoring.

KTH17B Max input DC voltage DC52V Max input circuit Current DC 65mA Feed voltage DC48V Bell ringing voltage DC24-48V Net Weight (kg) 1.65kg Size (mm) 285mmÃ?175mmÃ?135mm Communication Distance â?¤5km,model: MHYV1*2*7/0.37 Belling Grade â?¥80dB Material ABS Protection Level IP54 Installation Wall Mounting/ desk top Link coupler KTA16B safe coupler, connect to 10 phones Dial model DTMF Function Explosion proof /waterproof/ anti-dust /anti-corrosion -

1. Match light are multiplexed lines. 800Hz telephone impedance is 800Ω ± 20%. 2 .Through two telephones on the same model, in less than 75db audio noise conditions, the communication distance up to 21 km. 3. In temperature -40 â?? (using cold battery) - +50 â?? 750 ± 30mm Hg pressure and temperature of +40 â??, relative humidity up to 98% of the reliable work environment. 4. All parts are fixed on the rack into one, along with mobile phones are loaded into the enclosure, solid structure to carry and easy to use. 5. Volume : 222*195*107mm3 ã?? 6. Weight : about2.5Kg -

Voip phone Two separated uart for cpu and dsp+32-bit risc cpu with 125mhz clock rate+16-bit fixed-point dsp with 125mhz clock rate+max. Support 32mbytes sdram and 16mbytes flash Support 1 line for voip call, sip(rfc2543, arfc3261)+phonebook with 100 groups memory+ Network protocoltftp client/dhcp client/ pppoe client+telnet/http serverdns client+ipftcpfudpf rtpfrtcp+ipficmpfarpfrarpfsntp Voice qualityvad: voice activity detection+cng: comfortable noise generato+lec: line echo canceller+packet loss compensation+adaptive jitter buffer+ Codecg.711: 64k bit/s (pcm)+g.723.1: 6.3k / 5.3k bit/s+g.726: 16k / 24k / 32k / 40k bit/s (adpcm)+g.729a 8k bit/s (cs-acelp)+g.729b: adds vad & cng to g.729+ Call functioncall hold+call waiting+call forward+caller id+3-way conference Dtmf functionin-band dtmf+out-of band dtmf+sip info+ Sip serverregistrar server (three sip account)+outbound proxy+ Phone functionvolume adjustment+speed dial, phone book+flash+speaker phone+ Ip assignmentstatic ip and dhcp+pppoe support for adsl or cable modem+ G securityhttp 1.1 basic/digest authentication for web setup+md5 for sip authentication (rfc2069/ rfc 2617)+