China New Product JWBT821 Explosion Proof Voip Telephone – Metal Telephone
China New Product JWBT821 Explosion Proof Voip Telephone – Metal Telephone Detail:
Application |
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. |
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Product Feature |
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. |
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Technical Parameter |
Explosion-proof mark |
Exde[ib]ibIIBT6/DIPA20TA,T6 |
Working voltage |
AC220V |
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Network protocols |
TCP/UDP |
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WAN port |
10/100 Base-T RJ-45 for WAN |
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Frequency response |
250~3000 Hz |
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PA output power |
10~25W |
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Defend Grade |
IP68 |
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Corrosion Grade |
WF1 |
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Ambient Temperature |
-40~+60℃ |
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Atmospheric Pressure |
80~110KPa |
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Relative Humidity |
≤95% |
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Lead Hole |
3-G3/4” |
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Weight |
12KG |
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Installation |
Wall Mounted |
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Using Method |
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. |
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Package |
1 unit per carton; Carton Size:44x32x27cm |
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Warranty |
Under normal use, non-human damage, free one-year warranty; |
Product detail pictures:

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Sticking for the basic principle of "Super Top quality, Satisfactory service" ,We've been striving to be an excellent business enterprise partner of you for China New Product JWBT821 Explosion Proof Voip Telephone – Metal Telephone, The product will supply to all over the world, such as: Morocco , Philippines , Sevilla , Our products are exported worldwide. Our customers are always satisfied with our reliable quality, customer-oriented services and competitive prices. Our mission is "to continue to earn your loyalty by dedicating our efforts to the constant improvement of our products and services in order to ensure the satisfaction of our end-users, customers, employees, suppliers and the worldwide communities in which we cooperate".

Wide range, good quality, reasonable prices and good service, advanced equipment, excellent talents and continuously strengthened technology forces,a nice business partner.
