Ningbo Joiwo Explosion-proof Science and Technology Co., Ltd.

Industrial telephone manufacturer

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Inmate classic old fixed inmate System prison Corridor Telephone -JWAT133

This Telephone is housed in SUS304 stainless steel material and manufactured to a high standard, it is offer increased resistance to vandalism, and ensure that the primary function of communications is maintained at all times, resulting in a highly reliable product with a long MTBF.


Extremely easy to install. The cable entrance is on the back of the phone to prevent from artificial damage, while the keypad is weather and vandal resistant.

Product Details

1.Standard Analogue phone or SIP phone  could be optional.

2. 304 stainless steel material shell, Robust housing, high mechanical strength and strong impact resistance.

3. Vandal resistant handset and armored cord .

4. ADA Volume Control Compliant.

5. Zinc alloy keypad with volume control button.Full rugged & durable keypad with memory, easy to operate. 0-9 buttons can also be programmed as speed dial button.

6. Instruction Card: Instructions can be put in this area.

7. Magnetic hook switch with reed switch.

8. Optional noise-canceling microphone available.Inductive coupler fitted as standard for hard of hearing.

9.  Wall mounting, simple installation

10. Weather proof protection: IP55-IP65

11.Connection: RJ11 screw terminal pair cable.Phone line powered or  External Power supply or PoE (SIP phone)

12.Multiple color available.

13.Self-made telephone spare part available. 

14. CE, FCC, RoHS, ISO9001 compliant.



Power Supply Telephone Line Powered
Voltage DC48V
Standby Work Current ≤1mA
Frequency Response 250~3000 Hz
Ringer Volume ≤80dB(A)
Corrosion Grade WF1
Ambient Temperature -40~+70℃
Atmospheric Pressure 80~110KPa
Relative Humidity ≤95%
Anti-vandalism Level IK10
Installation Wall-mounted




Why Choose Us



Certification : SGS, ISO 9001:2000 , CE, FCC,ROHS,CNEX, IP65/IP66/IP67,
Packing: 6 sets/carton, 22kg/carton
Delivery date: 3-7 days
MOQ: 1 set
Supply Ability: 5000 sets/month
Payment Term: T/T, Paypal, Alibaba Trade Assurance, L/C or others for negotiation.
Samples Offer: Samples are available and can be free for strategic customer.
Samples arrangement: Standard samples will be prepared to sending in about 3 working days. 
(And DHL 3-5days; UPS 3-5days; Fedex / TNT 3 5days; EMS 7 days to reach destination)
After-sales Service 2 Years' Warranty and spare parts are available for maintenance.
Contact Tel: 0086-574-58223619, Mob: +86-13858299692


Ningbo Joiwo Explosion-proof Science and Technology Co., Ltd.



Address: No. 8, Guoxiangqiao Middle Road, Lanjiang Street, Yuyao City, Zhejiang Province

Purchasing: product application case