VOIP telephone with with protective cover Industrial Explosion proof Telephone for Hazardous Areas

Product Name: E xplosion-proof telephone

Product Type: JWBT821

Ex Mark: Exde[ib]ib IIB T6/DIP A20 TA,T6

Communication System: Switchboard

Defend Grade: IP65

Dimensions: 343×294×206

Material: Aluminum alloy

Color: Yellow (customized)

1. Suitable for explosive gas atmospheres Zone 1 and Zone 2.  

2. Suitable for IIA, IIB explosive atmosphere.  

3. Suitable for dust Zone 20, Zone 21 and Zone 22.  

4. Suitable for temperature class T1 ~ T6.  

5. Widely used in oil  exploration, chemical, military, pharmaceutical, oil refining and other  hazardous environments and depots, offshore oil platform, oil tankers  and other places.  

6.Suitable for high noise places.  

1. Support SIP 2.0 (RFC3261) and SIP-related RFC  

2. Speech Coding: G.711A / u, G.7231 high / low, G.729a / b, G.722, G.722.1, G.726.  

3. Echo cancellation: Support G.168, full duplex, support VAD, CNG.  

4.DTMF to support: SIP info, DTMF Relay, RFC2833.  

5. Support SIP application, including SIP Call forward / transfer (blind / attended) / hold / waiting / 3 way talking.  

6. Support server conference.  

7. Support path, gruu.  

8. Support SIP Privacy.  

9. Support xDSL PPPoE, and supports break automatically redial.  

10. Support VLAN (DATA VLAN and VOICE VLAN.  

11. Support STUN client.  

12.WAN port supports  primary and secondary DNS servers, support for DHCP mode can be selected  using the dynamically obtained DNS DNS address or use a static  configuration.  

13.Support DHCP Client on WAN port.  

14. Support DNS Relay, SNTP Client, Firewall.  

15.Qos support Diffserv.  

16. Support command network tools: Including ping, trace route, telnet client.  

17. By IPBPX, it enables group calls, broadcast function.  

18.Patented designed telephone housing with waterproof and dust-proof function; waterproof cover, beautiful and practical.  

19. Aluminum alloy housing with high mechanical strength, and impact resistance.

20. High temperature electrostatic spray of the shell surface with anti-static ability and eye-catching color.

21.Externally connect explosion speaker (10 ~ 25W).

1. The caller takes the handset off hook, dial the callee's telephone number→ the callee's telephone rings.  

2. The callee hears ringing → pick up the handset to answer the call, both sides under normal conversation.  

3. At the end of the call, hang back the handset.  

4.Much more instructions, please refer to the attached Instuctions of Voip phone. Such as: hotline, call forwarding, call waiting, three-way calling, black list, white list, limit list and so on.