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Inmate phone

Inmate phone

material:Cold-roll steel sheets

Inmate phone voip
Inmate phone
Inmate phone the family telephone management monitoring system for prison inmates phone affection develop professional monitoring system, strictly control the inmates can only immediate family calls, call process guards can monitor and control all the way, and in real time recording, later can query the recording and playback calls at any time.
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inmate phone KNZD-27

        The Inmate the family phone management system function is strong, high degree of automation, flexible control, security, make up the prison existing outside less family telephone number, the phone number, unable to control, monitor the inconvenience not recording, organization, inconvenience, etc, thoroughly eliminate the original pitfalls in the process of the family phone use. KNZD-27 is a professional telephone for inmate phone calls. prison phone calls usually need absolute strongest phone.People put money on phone for inmate to make phone calls inside the jail. KNTECH is professional communication system provider for inmate phone service. KNTECH manufacturing inmate telephone system include IP PBX and inmate phone.


1. Cold-roll steel body for easy Installation.

2. Waterproof rating IP55 dust proof.

3. Full keypad with memory, 10 button programmable speed-dial telephone.

4. Weather resistant to IP55 standard, service temperature range from -30 degree to +75 degree. 

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 armored cord . 

8.. Metal keypad keep waterproof and dusty proof.

9.Phone integrity wiring to enable the telephone system to check if the telephone unit is still

Operational.(If PABX have this available we can provide this function).

10. Optional 7 minute time out to release the line if the handset is left off hook. This function

upon buyer’s requirement).

11. Powder coated in UV stabilized polyester finish.

12. The housing covered with a layer of reflective label for easy identification at night.Optional

13. Application: Tunnel, metro, railway, LRT, speedway, marine, ship,offshore, mine, power plant, bridge etc.




EN55022: emissions EN55024: immunity

Ingress Protection: GB4208-93 IP66 FCC ITU-T Recommendations K21

EMC: EN50121(Railway application-Electromagnetic Compatibility)




Unit size:280*210*60mm   Unit: N.W:2.6KG 

1pcs packing box size: 330*250*170mm Unit: N.W:2.6KG    Unit G.W:3KG 

6pcs in 1 outer Carton box: size: 730*390*340mm  N.W:31.8KG  G.W:34KG 

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