J&R Technology Limited
A Safe Voice In Global Communications
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Anti-Vandal prison inmate Service Telephone supplier
Housed in cold rolled steel box and manufactured to a high standard, these telephones offer increased resistance to vandalism, and ensure that the primary function of communications is maintained at all times.
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
Anti-Vandal prison inmate Service Telephone supplier
| Operating Temperatures | -40°C to + 70°C |
| Relative humidity high | 93% R.H at 40°C (non condensing) |
| Casing Material | Heavy Duty aluminium (salt & corrosion resistant) |
| Excellent Sound Quality | STI approved to 0.9 (Excellent Sound) |
| Ringing volume | 80 dB(A) in 1m distance |
| Power Supply | 24V DC input, or Power over Ethernet (PoE) |
| Connection |
RJ45 Ethernet socket through IP67 plug connector |
| Quality of Service (QoS) | ensuring optimal delivery of voice |
| Type of Service (ToS) | high throughput and reliability (RFC3168) |
| ISDN gateway compliance | connect any SIP compliant VoIP/ISDN gateway to call to-and receive-calls from ISDN |
| Inbuilt redundancy | able to make diversion calls to 2nd PBX |
| TR069 (Technical Report 069) | for advanced status monitoring and control |
| Configuration | web interface or server based configuration file. Static IP address provisioning or DHCP. Mass configuration available |
| Keypad Option | available without a keypad (autodial-on-handset-lift),used to initiate a PABX Hotline or wait for reply |
| Remote Management | Available with remote management software,to simplify installation and cut maintenance costs |